CAD Software 3D CAD programs

The Rocketry Forum

Help Support The Rocketry Forum:

David Schwantz

Well-Known Member
Joined
Jul 23, 2018
Messages
1,357
Reaction score
479
Location
MN
Looking for a 3D program for beginners. Have tried Fusion 360 and 3D builder. Guess they are to fancy for me to learn. Cannot figure out how to put a hole in my file. What ones are for dummies?
 

AeroAggie

Well-Known Member
TRF Supporter
Joined
Jan 21, 2017
Messages
303
Reaction score
100
Location
Wichita, KS
Fusion has some pretty good tutorials. Have you tried them? Tutorial Link

TinkerCAD is one of the simplest, but I never liked it because it was too simple.

I really feel like Fusion 360 is in the sweet spot between easy to learn and remarkably capable.
 

CalebJ

Well-Known Member
TRF Supporter
Joined
Jan 20, 2020
Messages
384
Reaction score
205
What files aren't opening for you - the training videos at the Tutorial Link that AeroAggie posted?
 

David Schwantz

Well-Known Member
Joined
Jul 23, 2018
Messages
1,357
Reaction score
479
Location
MN
Yes, unzipped them all. They were unsupported file type. Could not get any to open. Might try on my tablet in the truck.
 

AeroAggie

Well-Known Member
TRF Supporter
Joined
Jan 21, 2017
Messages
303
Reaction score
100
Location
Wichita, KS
They’re not files, theyre videos hosted online. They use content that’s already embedded in Fusion 360 so you can operate on the same parts they’re demoing
 

AeroAggie

Well-Known Member
TRF Supporter
Joined
Jan 21, 2017
Messages
303
Reaction score
100
Location
Wichita, KS
I use dual monitors to put the training video on one side and Fusion on the other and follow along click for click. The version they teach on is a little out of date so some things don’t look exactly the same, but the basic functionality is all there.
 

David Schwantz

Well-Known Member
Joined
Jul 23, 2018
Messages
1,357
Reaction score
479
Location
MN
I must have missed something then. I clicked on the beginner version and got a down loaded zip file. None would open. Will have to look again.
 

David Schwantz

Well-Known Member
Joined
Jul 23, 2018
Messages
1,357
Reaction score
479
Location
MN
Found them, thanks. God I hate computers, opened first one and it froze. Now none of them play :(
 

AeroAggie

Well-Known Member
TRF Supporter
Joined
Jan 21, 2017
Messages
303
Reaction score
100
Location
Wichita, KS
I’ve had the same problem a few times. I don’t know if it’s their server or some cache on the user end or what.

You might try opening Fusion and launching training from there. There’s a side bar on the right that takes you there.
 

dr wogz

Fly caster
Joined
Feb 5, 2009
Messages
5,282
Reaction score
637
Location
Land of Poutine!
Looking for a 3D program for beginners. Have tried Fusion 360 and 3D builder. Guess they are to fancy for me to learn. Cannot figure out how to put a hole in my file. What ones are for dummies?
David, can you describe what you are trying to do?

Most CAD programs have a hole command, but you can also extrude a shape (a circle in this case) thru your part.

3D CAD is mostly building stuff by either adding extrusions or removing extrusions.

To make a box, you would first draw a rectangle [X by Y], then extrude it Z inches. To make a hole, you would first select the plane on which you want your hole, constrain it (make it X inches from one side, and Y inches from the other) and extrude it [cut] thru the part. You can extrude 'thru', or a specified distance.

you then start adding geometry as you want to build the design intent.

Describe what you want to do, and we can walk you thru the steps. The concepts are difficult at first, but they get easy once you get the basics down. (A lot I've taught tend to think of making the first main shape as complex as they can. start simple. An engine block would start out as a general shape of the engine block [front to back]. Then start removing material where you don't what it, or add where you do..)
 

David Schwantz

Well-Known Member
Joined
Jul 23, 2018
Messages
1,357
Reaction score
479
Location
MN
Trying to take my stl file, load it and then add a hole to allow a mmt to fit after printing. I can load the file but cannot get the hole command to put a hole in the part. I have the free version of Fusion 360 and thought that maybe it was limiting me. But then I tried the 3D builder that came with my new laptop. I cannot get a hole in the part in that either.
 

David Schwantz

Well-Known Member
Joined
Jul 23, 2018
Messages
1,357
Reaction score
479
Location
MN
My stl file is from Thingiverse. Have printed it, but want it to be hollow for CR and mmt.
 

0011001100

A Person
Joined
Jun 28, 2017
Messages
469
Reaction score
115
Location
Northern VA
You need to make a sketch first with a point at the center of the hole you want then use the hole command.
 

AeroAggie

Well-Known Member
TRF Supporter
Joined
Jan 21, 2017
Messages
303
Reaction score
100
Location
Wichita, KS
STLs are not directly editable in most CAD software, it's just a surface representation of the model. You'll need to convert it to something that can be modified in CAD, then convert it back to STL.



If you have access to the original file that the STL was made from, that's a better place to start than converting STLs.
 

David Schwantz

Well-Known Member
Joined
Jul 23, 2018
Messages
1,357
Reaction score
479
Location
MN
Tried the sketch, It would not allow me to define the size of the hole. Also converted the stl file to the image that had like 36,000 facets. Fusion said this was able to be edited. But because of all the facets it took to long and would freeze. My guess is that it will be some thing super simple that I did not do right, and I will look really dumb. But I have not found that thing yet :(
 

neil_w

Hunkered down and slowly going crazy
TRF Supporter
Joined
Jul 14, 2015
Messages
8,676
Reaction score
2,114
Location
Northern NJ
I would go give TinkerCAD a try. It's sooooo easy. Can always move up to Fusion 360 later.
 

David Schwantz

Well-Known Member
Joined
Jul 23, 2018
Messages
1,357
Reaction score
479
Location
MN
Hey neil. thanks, tried that one also. Here is a link to the files I am trying to use.
 

Mike Haberer

Well-Known Member
TRF Supporter
Joined
Jan 7, 2019
Messages
168
Reaction score
85
I like OpenSCAD. I find it easier to learn than the others I've looked at. It's also free and there are a lot of existing files for it on this forum and on Thingiverse.
 

Yukon@K-9 Rocket Tech

Just a teen who likes building rockets
Joined
Jun 21, 2019
Messages
530
Reaction score
116
Location
Georgia, USA
Autodesk tutorials are pretty bad and kept me away from Fusion 360 for a long time. This single video got me to learn enough to play around and do stuff in it till I figured out stuff.
To this day I'm learning new features. Tutorials are different for everyone, but for me personally this guy really saved me. It's different for everyone, but I just wanted to learn just enough so I can make something, then when I want to know how to do more just google it lol

 

alexzogh

Well-Known Member
Joined
Sep 30, 2010
Messages
651
Reaction score
115
Hey neil. thanks, tried that one also. Here is a link to the files I am trying to use.
Download and edit the f3d files which the original author graciously provided, not the stl files if you want to edit. You will want to ”create” a cylinder, where you want to put your motor mount, then use the modify -> combine tool to subtract the cylinder from the rocket.

Here is a video on the subject: https://knowledge.autodesk.com/community/screencast/4bd11ccf-1d8a-4783-9030-ec6617adee83

Dr Wogz (Paul) described it very well above.
 
  • Like
Reactions: SCP

SCP

Well-Known Member
Joined
Jun 24, 2011
Messages
407
Reaction score
17
That is a very cool model, and like @alexzogh said very gracious that they supplied the f3d!
 

Nytrunner

Pop lugs, not drugs
Joined
Oct 15, 2016
Messages
6,544
Reaction score
1,969
Location
Huntsville AL
Tried the sketch, It would not allow me to define the size of the hole. Also converted the stl file to the image that had like 36,000 facets. Fusion said this was able to be edited. But because of all the facets it took to long and would freeze. My guess is that it will be some thing super simple that I did not do right, and I will look really dumb. But I have not found that thing yet :(
I have no tips to add beyond what's already been said. Just wanted to say Way to go for working through the hurdles of learning this stuff! (especially if computers aren't your favorite devices)

It'll come with practice and some research
 

David Schwantz

Well-Known Member
Joined
Jul 23, 2018
Messages
1,357
Reaction score
479
Location
MN
Thanks Nyt. I have printed all the parts to build her, but when I tried to make a hole for the mmt, it just melted and turned to shot. So now I am wanting to print it with an already hole to glue in a motor tube. Since today is my 60th B day and I have been doing yard work since 6am, and I have to deep fry a turkey for tonight as my Son and his Mrs are coming for supper(how does this work?). I am going to go and die for and hour or so:)
 

SCP

Well-Known Member
Joined
Jun 24, 2011
Messages
407
Reaction score
17
Hey David - I always am in favor of "teaching a man to fish", like the others have already done. I had an idea, if you want we could do a quick webex or zoom and go through it together.
 

David Schwantz

Well-Known Member
Joined
Jul 23, 2018
Messages
1,357
Reaction score
479
Location
MN
Thanks, I am wanting to learn it and am trying my best. But some times I just need to walk away and go build on a rocket. Hate to tell you this, but I have never heard of webex. I know everyone for school around here is using zoom, but guess what?? God I am old. Oh yeah that's right I just turned 60 yesterday :)
 
2
Top