Figure 4® Tutorial Module #3 – 3D Sprint Demo: Basic Tools


– Hi, I’m Marty Johnson from 3D Systems. I’m here to introduce you
to a set of module training we put together for
your Figure 4 Printers. This module training is
to help to purvey to you what our success is in the lab so that you have success in your endeavors with your Figure 4 Printer. And this is Module 3. This is your 3D Sprint
Toolbox and Part Setup. And if somebody comes up and says, how could I learn how to run this system I say you definitely wanna see, I think it’s real important to go through these
modules and their setups so you know you’ve got the
safety and the understanding of how to do the safety. You’ve got a basic understanding of what’s your overview
and how this printer works, but now let’s really put
some rubber on the road and go in and see, how do I set my part up and how do I get the best
success out of my printer. And understanding what’s in
3D Sprint is really critical and so, it’s so critical
that the next four modules are related to using 3D
Sprint to setup our parts for all applications and intents and identifying what tools are available. So this particular Module 3 is the basic tools and setup, but there’s a lot of information here that will give you success
in printing on your Figure 4. So let’s just get started. I’m still, Marty Johnson,
we went through this earlier so I’m gonna skip through
to the next slide here and look at our Training Modules and you can see we are at
Module 3 for Basic Training, and as I mentioned, the next three modules are gonna be 3D Sprint
Intermediate Toolbox, 3D Sprint Advanced ToolBox and 3D Sprint Production and
Repetitive Printing Tools. So I would suggest doing
these in succession and there will be videos posted on the info center for these for those that miss ’em ’cause there’s a lot of information here and I know we’re already
using these as group training that people are doing internal
to their own facilities to be able to understand so that as a team they understand what’s available and they all can get the best
success out of their printer as soon as possible. The purpose of this module was to provide a basic understanding of
the toolbox in 3D Sprint and how to use those tools
that lead to printing parts with the desired part
intent or application. And so the goals of this are: to understand the basic
layout of 3D Sprint; to understand where all Help links reside and content of each; and
this is very important, I couldn’t highlight that I
should’ve even put it in red, and understand the basic
part setup in 3D Sprint; understand the basic use of
the Prepare Tab in 3D Sprint; and then how to send a
print over to your printer. Before we get started I will show you that the 3D Sprint
software can be downloaded at the link below. There’s other helpful information that can be found on this page such as Registration and Activation Links, 3D Sprint Support Links, Installation and System Requirements. In fact I may take us to that and this what you’ll find at that link. And how to get started,
registering your machine, downloads, anything that you need there. Installation instructions, requirements, a lot of good information
on this page in this link. So let’s go to our demo and we’re gonna go into 3D Sprint now and set this up. And we’re gonna walk through
and set up some parts and look at how 3D Sprint is set up and where things are
and see what we can do to make this and make you successful. To start on a basic layout this consists of preferences and controls. You’ve got the Print and Prepare tabs, the Queue tabs, Parts list,
Active setup information. Let’s touch on all of this so that people understand
what’s available. We’ll start at the top with
the icon for Preferences. On the Preferences tab
and I’m not gonna go through every detail, because a lot of that is
available in 3D Sprint and we’ll see that in a minute. But we’re gonna go through here and just touch on some highlights. One of the things here in the Preferences is this is where you get
your localization and units so those can be set up here. In addition, down at the bottom, this is 2.10.1.1006, that’s
your software version. If you ever have to make a call your 3D system service representative is going to ask you what
version you’re using and so that’s something that
you’ll wanna have handy. There are other Defaults in here that can be setup as well. Next is a question mark and I will say anywhere there’s a question mark I would click on it in this system. The question mark is
gonna take you to Helps and they’re quick links to help online so, and it’s popup help so
if I’ve got two screens I can look at my help and I can still be doing
things on 3D Sprint at the same time with a couple of monitors and it’s a really nice tool to have to be able to not have to keep all of that in one place. But when you go in and click on that Help, this particular Help, and this is the main
Help on the main screen in the top right. You’ll see a lot of the things we’re gonna talk through here. This will label out and
tell you Navigation buttons, Command panels. You can go through the Commands and you’ll see each one of the icons that are on the panel,
you’ll see what they do. For instance if we click on Orient there’ll be a video in there of how to use that particular icon. There’s gonna be terms, or define, and any other information that you’ll need to be able to know what
to do with that icon and what it’s available for. Again, you’ll see that for just about all of the icons in there there
should be some kind of Help. And then there’s some extra information here on selecting parts, navigation tools, and things like that. So again, this is the Help button that’s up on the right. A lot of useful information. If somebody’s first
starting out with 3D Sprint I would suggest they click on that and just take a little stroll through and see what’s available there. The next place we’re gonna
go is the Parts List. The Parts List and Properties are here on the right-hand side and let’s open a Part and give you an idea of what that looks like. And we’ll just bring a Part in here. This Part’s in, it’s
got blue on the outside, that means it’s within our boundaries. We should be in pretty good shape. You see a green check mark, that means a part is verified. We can go down to the Properties. In the Properties you’ll see this, you’ll see the name of your part, you’ll see how many
triangles your part has from the STL file. You can get Volume and
Surface area information and also important are your Extents. Now note your Z Extent will start at, this Extent starts at 13.27 millimeters so this is telling you
the Extent of your part, but this also 79.28 millimeters is the maximum height of this part, or this print in the way
it is oriented right now. If you reorient that of
course that’s gonna move. Also on the bottom right
you’ve got your Prepare where you can go to the Prepare tab. We’ll go back to the Print tab and we’ll touch base on
the Prepare tab in a minute so you can see where some
of the functions are there. And this is where you Prepare your file. When you go print the file you slice it and it will execute the
print based on your setup. Also at the bottom right is
your active setup information. This is running a virtual printer of the Figure 4 Standalone which means I did not select a specific
printer to slice my part. It’s got TOUGH-GRY 10 materials selected at 50 Micron layer thickness. It’s in Standard mode. You’ll see the XYZ configuration. There’s a percent here. The reason that’s not a hundred is in your Default Modes for each material your setup in 3D Sprint will
take in to consideration your scale factors. And so what that means is if you have different shrink in scale
factors for different materials you won’t set your part up
of outside the boundary. So it’s gonna do that adjustment for you and that’s a really nice tool to have especially when you’re
putting a lot of parts on a platform. And then we’re gonna go up
here to the Printer tab. One thing, this Print tab, this is your main working space. I would say for a customer this is your portal to
the customer right here. You’ve got your Help menus. This is where you do all your, all your manipulation, your
setup, your part handling, whatever you need to do, that’s done in this particular tab. If I go to the Printer tab, the Printer tab also you’ll
see has a Help button. The Printer tab if I go to the right we’ll click on the Help button. There’s a video that takes you through some different things. It’ll go through in
detail some of the items we’re gonna talk about and highlight and you’ll see that in the Printer tab, terms and definitions, things
like that all will be here. Another thing in the Printer tab is there’s Hot Links within
the Printer tab itself. And what I mean by Hot Links when I drag my cursor over a machine I’m gonna see in yellow Best Practices. One thing I like to emphasize is whenever you see a
highlighted Best Practices tab it’s worth clicking on it. For the Standalone
printer I’m gonna go here and click on this Best Practices. It’s gonna again be a Hot Link. This takes me to the User Guide. This takes me to a Quick Reference Guide. There’s some things on 3D Sprint. A lot of useful information
at the Hot Links and this is for the Printer. If once I select my Printer,
if I go to the Material, and we talked about this before. This Hot Link is really
gonna be your friend. This is gonna go to and we’ll just choose ELAST-BLK 10, click on the
Best Practices Hot Link. It’s gonna take me to a table. This particular table for this material and it has all the materials
for the Printer in there, but it’s gonna go to
that spot on the table and it’s gonna have some tips. This one talks about using orientation to minimize large cross-sectional areas. For full platforms print
quality is best in Premium mode, or slow down the interval pause time to add that to one or two seconds. You’re gonna get some information
here for each of these. There’ll be some things, again, there’s another Caution
about Do NOT press down on the film when stirring, you know, for things that need to be stirred. In addition there’s more
videos that are available for Best Practices, Best Practices and how to set up parts. They’ll be real similar to
the things we discussed today. There’s a place where you can go in, oh we got rejected on the link there for our Best Practices that
you could go in and print out that will talk about handling
cross-sectional areas and some of the things
we’ll discuss today as well. There are Resin Mixing Instructions for this material at
the top, TOUGH-GRY 10. If you have a new bottle
then it’s recommended to mix that for one hour. After you’ve used it once
then after your first use and then before you pour in you may wanna roll that about 10 minutes. The difference is this
could have set on the shelf for several months, for the one hour, whereas after you’ve used
it this is a more recent, recently mixed material. In addition there’s Part
Cleaning Information. If you click on that there’s
a Post Processing Guide. A lot of information about
Post Processing your materials. At the bottom of that
you’ll see more links to Cleaning Resin Tray, Curing the Parts, Removing Parts From the Platform, some more detailed information there. And lastly you’ll have Part Curing Time and that will vary based on your material. The TOUGH-GRY 10 suggests 60 minutes, 90 minutes for the TOUGH-GRY 15, or 45 on the ELAST-BLK 10, and again, these (microphone cutting out) that we sell for curing parts. So a lot of information here. And that’s found again by clicking on Your Best Practices Hot
Link for your material. If there are multiple colors available for that material that will be found here. And if you go to your Print Mode the Print Mode down here you’re gonna see highlighted in yellow, this says Default. What Default means is a couple of things. This is a best combination we found for print quality and speed and so we try to balance those out and that’s where we start. You’ll see in the Belt Styles in a minute there’ll be other things
under Advanced Modes, but as a start this is what
you’ll see in the Default. So if you see claims on
print speeds and through-puts and accuracies and things like that they’re done at the Default
Mode that you see here. And so this particular material has 10, 20, 30, 40, and 50
Micron layer thicknesses. That may not be the case, the FLX-BLK 10 is only 30, 50, and 100 so it’s dependent on the material. And let’s go back to our TOUGH-GRY 10 and go to Standard Mode. So Standard Mode is Default
for your TOUGH-GRY 10 again. Most things are set up for Defaults will be in your Standard Mode. Now let’s talk about the difference. Most materials will have Draft, Standard, and Premium Modes. So let’s talk about what’s
different between those. Your Draft Mode is of course
gonna be a high-speed mode and it’s pretty good print quality. But it’s something that you’d wanna say I want a fast print, I just
need to check this out, it’s a prototype, let’s blast
it out and see how it looks. If I go to Standard Mode
that’s an intermediate speed and this is our, in this
great print quality again, this is where we go in and balance out speed versus print quality. If you go to Premium Mode that’s
gonna be a moderate speed, but this is your best print quality. And the times you would use Premium Mode are a couple of places that will help you. If you’ve got large cross-sectional areas, which we’ll talk about
more in a little bit, then you’ll probably
wanna go to Premium Mode because it’s gonna allow for your material to refresh a little bit better. If you’ve got a lot of different part, if you’ve got a full platform of parts that are say 20 millimeter diameters, if you’ve got a full platform like that you may wanna print that
in Premium Mode as well so you get a really good Refresh rate on your material as you go through. And so it just depends on your intent, your application, and what you set up. You may find that in Draft or Standard you can’t, or even Premium, you may not see a big
difference in your part, but there’s gonna be parts when you set up those kind of cases that you’re really gonna
see the difference. Features and things like
that from Draft to Standard you should see a difference
of course as well, but really wanna consider that. And Premium Mode again, just to reiterate, if you have large cross-sectional areas, or a really full platform
you might wanna consider using Premium Mode. So let’s just set that
and we’ll go back up to our Toolbar and we’ll go to the File. And this is where you can Save, Save As, or Close 3D print files. You can also Import and
Export STL files as we did and of course you can close
your part here as well. And let’s just close this part. Do you wanna save your changes, no, we won’t save this one this time. And I’m gonna bring back in another part and we’ll look at, I’m
gonna go to my Auto Place and let’s set that in. Now this parts in, it’s
highlighted with a red border. And you can see up here at the top right it’s got exclamation point
and I go, do my mouse over, the part contains open boundaries. So I’m gonna wanna fix
this part before I print it because I’m gonna have
some problems if I don’t. So let’s go to the Prepare Tab and I can already see there’s
a triangle missing here, it’s highlighted in yellow,
I wanna try to fix that. So let’s go to the Fix Icon, again, the Fix Icon has a question mark. If I want Help on what that means there’s a video that will pop up and will go through and tell me what I see when I see purple in my
part, or yellow in my part, it will give me a definition of terms and let me know all the
things that I need to know in the Fix Icon. For this particular one
there’s one on Open boundary, we can see that, and there’s also some Self intersections with triangles in here that you can see in the purple so let’s just fix that. You can see that that was really fast because it was a really simple fix. Some parts may not have that, but if you have Scan Data you’re gonna run into this a lot more. I would always bring a Scan
part in here and take that out ’cause a lot of times Scanned Data will have a lot of noise shells and open boundaries
and self-intersections. So this particular part was a CAD file that just happened to
have an open boundary and you can see that it fixed that and now it’s highlighted in blue. There’s some other things that you can do in the Prepare Tab. You can Reduce Triangles,
you can Mirror and Offset and Split your part. You can Extrude Geometry out of your part. You can Generate Geometry and add here. But one of the things that I really like about the Prepare Tab is if
I’m doing multiple parts, let’s say I’m wanna
print 10 of these parts and I wanna print ’em all at the same time and I wanna know where they are. Then what I’m gonna wanna do is go in and maybe Engrave that part and set that part up such that I know which one was printed
where on my print layout. So let’s do a View and
choose this from the top. And I’m gonna choose the plane I want to do the engraving on. My windows a little big so
let’s shorten that up here and we’ll go into the
text and just say, Part 1. I’m gonna have to move
that over a little bit because it came off my part. That’s looks good. I think I like the font
size, I’m good with that. If I want the font smaller I can simply make my window smaller and that will help me decide how big to make my font so it’s a nice automatic feature to have. And so I’ve got that setup. I wanna Engrave this so
let’s just hit Engrave and we’ll Apply it and I’m gonna close here and let’s rotate this over. We’ll hit the sharp edge where you can see now we’ve got an engraved part. And you can control the depth and things like that. But there are a lot of
features here that you can use to manipulate your part, but again, this is one I just wanna highlight ’cause we use this quite a bit. And then once you’re done you can just add that to your Print. It’s coming in red because it’s beneath where we generally have it
setup in the Belt Styles. So I can go to Auto Place, Set, and you can see we’re red, blue around the outside
again and ready to print. And then lastly the Queue Tab, this is where if we slice a file we’ll keep things in the Queue Tab. We can add files here, we
can do some different things in the Queue Tab and we’ll touch on that as we slice prints and move forward. So let’s go in and look at
some of the other buttons we have here and set
up a part that we want and move around and
see what our intent is. So let’s go back, we’ll
close this, do I wanna save, I won’t save those changes this time, normally I would. But let’s take our Import and
let’s bring this file back. So, again, the first thing I wanna do is I’ll bring this part in and
I wanna identify the Intent and Application of the part. And as I mentioned before it looks like we’ve got a datum surface here, I want that to be pretty flat. I’ve got screw holes that come in the top. I’ve got three different larger holes where I wanna bring tubes in as a junction and I’ve got a sensor in the bottom. So to get this started
let me just take this, we’re gonna use the Orient
function so we’ll go to Manual. Let’s sit this flat where we can really take a look at it. And let’s view this from the top. Now one thing you can do
with your Transform button, and we’re gonna use this quite a bit here, let’s just center this in the system here. And let’s take a look at this part. Now one of the things
that I really wanna stress when you’re using your Figure 4, this is the Figure 4, this is the modular, even the Fab Pro’s setup, you really wanna limit
your cross-sectional area. That is one of the first things you’ll get from a successful part build. And so one of the ways to do that is I’m gonna go over here and I wanna turn on my clipping and I wanna Queue Z. And you can see my part’s gone, but I’ve got this blue XY
plane around the bottom. And so if I start to
move that up gradually you’ll see this larger
cross-sectional area in red and I’m just gonna move this on up and you’ll see it get smaller and then you’ll go up and it’s
gonna get a little bit bigger and then it gets small again. Well I will tell you if I want a really nice looking part I wanna try to get rid of
this big cross-sectional area. And there’s a couple of things. When you deal with materials one of the things you have to deal with is the differential shrink. We are using membrane printing
so I wanna be able to get the same amount of refreshed rate all the way through my part when I’m printing with my material. So what I’m gonna need to
do is rotate this part, but I just don’t wanna rotate it blindly. So one thing I know is we talked about the intent of the application. We’ve looked at, we’ve got this
larger cross-sectional area. So let’s kinda set this up such that we can optimize on that. So one of the first things I’m going to do let’s turn the Clipping back off for now. I’m gonna click over on the right on my Down Facing, I’ll
leave the Angle at 45 and let’s set the Number of grades to 10. And when I turn that over what I see it’s highlighting my Down
Facing surfaces in red and you can see there’s
a little gradient here that it’s not a 90 degree Down Facing, but it will check it up to 45 degrees relative to my XY plane. So I can see kind of
where I may or may not wanna have supports. So one of the things
we talked about in our, when we set our part up is, we’ve got the datum at the bottom, we’ve got the holes in the top, we’ve got the tubes coming in the sides, but one of the things
we really wanna maintain is the integrity of where our sensor’s gonna fit into these features and that way our sensor
will work properly. So what I’m gonna do
is I’m gonna go in here to my transform and let’s just
start by rolling this back and that’ll help us with
this cross-sectional area a little bit. And you can already go in and see a lot of that red’s gone. So we got rid of our
straight Down Facing surfaces so we’re lot more
self-supporting in what we do. And so I don’t like being over that far let’s kind of come back just a little bit. One thing I will show you is if you go to your Snapping
it’s set at 10 degrees, I’m gonna set that at one where I have a little more granularity in how I move that. And so now that I’ve set that up that’s gonna help me with
my cross-sectional area. Another place I can optimize and one, and the reason I rotated
it in that direction also is because I’ve got these features that I wanna maintain. So the fewer supports, and the fewer things that I
have to do to these features, the more accurate and the better integrity these are gonna be because
they’re not gonna need a lot of sanding or any
kind of post-process. So I wanna put these on top. And now I wanna go down here and see, well I’ve got a square opening, but I could actually take this, and let’s rotate this part, just grab my, a little bit, and now I’m making these self-supporting as I go through the bottom. So that’s gonna help me
get a good square bottom and I’ll have my opening there, we’ll be pretty good. I’m looking at my part. Now my part I’m at a compound angle so there’s very little areas that are Down Facing surfaces. And so that’s gonna optimize and it’s gonna make my supports more something I can put in
to help with accuracy as opposed to trying to
fight things and Refresh and I’m gonna get a cleaner material. The other thing I’m gonna get here and I really wanna stress this, is my cross-sectional area. And I used to do a lot
of injection molding for about 15 years on different parts, large parts, small parts. And one of the rules that we tried to guide things by in the design is to try to get uniform wall thickness. Because if you get uniform wall thickness then you’re seeing the
same kind of properties and you’re seeing the same kind of heat and the same kind of flow all
the way through your part. And that sort of applies to
what we’re doing here as well. If I can go in here and
look at trying to get a uniform wall thickness you can see, going up through this part, I don’t have any of these big flats in fact that’s probably
my biggest area there which I could rotate out of if I really wanted to, but I already know that we can probably print that pretty well. But I’ll take and go through and check my part to see am I mostly in the uniform wall thickness situation. Now of course every
geometry’s not gonna get this so I’m considering all of these things. I’m considering the intent
and application of my part, where are the features I need to preserve, how do I minimize the
cross-sectional area, how do I maximize my time if that’s a part for printing? So I’ve gotta consider those things when I set my part up. This is not something that I’ll simply just load in STL, put supports on it, go hit Print and it’s
gonna get me what I want. I really need to consider what I’m doing when I go through this. And so I like to reach
success as soon as possible when I start my part so if I consider that and do that up front and it’s one of the real
reasons we’re setting up and I’m doing these modules. It’s so I can teach people
how to get in your lab what I get in my lab. ‘Cause when I set this up in my lab how do I get success early? I get success early by
considering things like this and setting my part up from the beginning with an idea of what I want this to look like in the end and why. And so once I get that setup we can go in here and we
can put supports on this, so let’s just close this. And we’ll go in and
take our Smart Supports. In your supports there’s
a couple of things I wanna touch on here. When I open the Support window, again, I said in yellow, now
this one says Must Watch so I can’t give up on that, Must Watch Best Practices,
I’m gonna click on that. What’s really nice here is
there are a lot of videos that have been put in
with these Best Practices so in addition we’ve added things in. So there’s a Training course here that you can go get
more video information. There’s some more Best Practice
videos you’ll see here. There’s actually, in this system there’s an Application Guide for people that are doing Jewelry. I will say that Jewelry supports will always be manual because Jewelry has so much intricate geometry, this is not something
you would hit a Default and start printing your Jewelry. You wanna go in, if you’re doing Jewelry I would highly suggest going
in and looking at this video. There’s some sample rings
and things you can look at for using Jewelry in that application. But that information, again, is available when I go
to Best Practices here. In addition there’s a question mark, I wanna hit that for Help and I can go to through that icon and I’ll see where anchor points are. I’ll see how thing are setup in 3D Sprint. If I go to the bottom of this I can hit my other Support Parameters. This will also guide me through what these other terms
mean in my support terms and how they’re affected
and what that looks like and how that can help me improve my part. What you will see for materials when you go into 3D Sprint,
this was TOUGH-GRY 10. It’s got three different Default supports. There’s a Fine Flat Tip, there’s a General Flat Tip, and a General Round Tip. I will tell you General Round Tip is normally for more robust parts things that are really thick that might be more susceptible to warp. Find Flat Tip, if you’ve
got a really larger surface, say a big cover part that you wanna maintain
a flat-surface area. It’s got a lot of finer, you’ll have more supports, and more dense supports,
but with a finer tip, to make the cleanup easy, but you get a full coverage on that. And General Flat Tips is as it is. That would be kind of our Default that we would set things
at most of the time. Under each one of these
parameters on the bottom is another set of adjustable parameters. Again, those are listed
in the Help section. We won’t go through each of these, that’s in Module 4, but
we’ll go through this in a lot more detail
and how to handle that. But let’s go ahead and
add, Create supports here. Once you have your supports on your part then you can go over to your Build Style. Your Build Style also has a Help button and it will take you
through the Build Style. And I know I’m really redundant in going to that Help button, but I just wanna reiterate there’s a lot of help
available in 3D sprint. A lot of it POs, a lot of
things you can download and get answers to your questions. So you should never be stuck
at least most of the time, I don’t like to say never. But under here you’ve
got your Build Styles and so here you see your
Draft Premium and Standard. You can add Build Styles. You can also go down on the Advanced Mode. The Advanced Mode has
another list of parameters where you can manipulate some of these. You’ve got your Base layer. I will touch on Base layer, has a Base layer curing time. A lot of these parameters if you have any kind of adhesion issues you may go in here and turn your Base layer cure time
up about five seconds, something like that just to see if you can improve your Base layer or maybe to add like two
or three Base cure layers and that will help your adhesion in the case if you’ve
got outside tolerances on some of your other hardware. But this just gives you a few more options on what you can do within a system and if you do make a
change you can save it. And so once we’re here
we chose Standard Mode. We’re going to Apply that. I’m gonna close my view and
we’re gonna go over here and click on our Print Style. We’ll take our Print Style to save in my Training Folder, again, this is a dot pxl file, if it were modular it would say dot f4x. We’ll save this. My file is sliced. This tells me where it is located if I need to go get that. I’m gonna go to my Queue. I can add the file there. I’m gonna Browse. There’s my file that we just sliced we’ll open that and Add To The Queue and now my file’s in the Queue and it will do an update
and show me my file there. I can have multiple files in the Queue and they can be moved
from the top and bottom and manipulated from there. One thing I wanna go back and do. There are some things in 3D
Sprint in Figure 4 Printing that are gonna be problematic and so I wanna be sure you’re aware of what those are and what
kind of parts these are and how, and what that looks like. And one of the things
that when we get into I’m gonna import this part here and let’s just go ahead
and Auto Place that. One of the things when you
get into this kind of printing is big blocky parts. In Figure 4 this is one of the more challenging type of hardware and so rather than tell you that this will print everything, I would not do that to anybody, this is something that’s gonna struggle. So I look at the intent of this part and the intent of this part looks like it’s some
kind of locating block that I can put down in Locate Features or some kind of jig. But when I look at the
cross-sectional area of this part, that’s huge and that’s really
gonna struggle to print in 3D Sprint. And so one of the things I can do is go to my transform, I can look at this and we could transform this and turn it. That’s still a big cross-sectional area. We can go back and do it compound and we still got big
cross-sectional areas. So this part is really gonna struggle to be able to print on the Figure 4. And let me tell ya this, going
back to injection molding, I would not injection mold this part because you’re gonna
get a lot of part sink and it’s gonna affect your accuracy. So if I know the intent of my part, and the intent of my part here was that I wanna use this
as a locating feature so what I would probably do is come into the back of this part and core this out and
put some ribs in here to maintain the structural
integrity of my part and then be able to get a more uniform cross-sectional area and some
kind of compound angle set up such as this. So I really wanna stress
that if you’ve got really big cross sections
you need to really take a step back and look at, okay, this technology is gonna probably struggle with this as it is so what’s the intent and
application of my part and how can I alleviate that in the design so I just wanna touch on that. There’s another type of part that you’ll run into
things on the Figure 4 and let’s transform, let’s move this one around a little bit. Well, we’ll go to our Orient and we’ll set this up. Now this particular part as you can see it looks mostly uniform, but if I go in here and hit this and I go start looking at what
my cross-sectional area is it looks pretty good there then all of a sudden, wow. That’s gonna be a problem. And if I rotate this it could still be a, I could probably rotate this
to get mostly out of it, but one of the things
I wanna be considering, if I look at it in this orientation, it’s differential shrink and we’ll talk a lot about that a lot in Additive Manufacturing. And one of the things you’ll see is, let’s say this particular material has a 1 1/2% shrink, I’m not sure exactly what it is off hand, but let’s say it’s 1 1/2%. Well if all I’m printing
is this section down here then I’m not gonna have
a lot of difference here in how this shrinks. I’m not gonna see that very much. But if I’m going up and
going up and going up and all of a sudden I get to a layer where it starts this, wow, 1 1/2% of this is really gonna make a difference and it’s gonna come in a little bit and what you’ll see is
your part will come up and it’s gonna come in this way and so you’ll have these
bottom pulling at the center and it’s gonna have that shrinkage and it’s gonna get out of it and you’re gonna bow back out. So you’re gonna have
kind of a shape like this in your part. And so one thing you
wanna really be able to do when you’re doing this is go in and look at the
orientation of your part and see can you orient out of anything to get a more uniform wall thickness and that’s a lot better there and you’re gonna see a little bit less differential shrink in
this particular part. Now differential shrink
is a material property and some materials will
have more than others, but the advantage to understanding the intent and application of your part and understanding how the
Figure 4 systems works, you can set it up to minimize what you may or may not
see in that situation. So it’s something to
consider in your part set up that’s really important and I just wanted to be
sure to highlight that. All right, well, that concludes
all the information I have and the things we have for Module 2. Again, as we go forward you’ll see us doing the other modules and we’ll go in much more
detail in the next Module 4 for building parts in the
advanced styles and supports and some of those styles. We’ll do that that in the Module 4 and then we’ll add on to that as we do combination parts and things like that as we go forward. So I really hope that you were able to grasp the understanding of the basic 3D Sprint tool kit, all the help that’s available where the Hot Links are, some of the things to pay attention to. There’s a lot of information
we went through here today that a lot of it is redundant and you’ll be able to
go back and find that as well as come back and watch the video and you can see where we pointed
some of these things out. (upbeat background music)

Leave a Reply

Your email address will not be published. Required fields are marked *