My buddy who works in CAD said AI isn't good enough for him yet. I...
CJ Hess@seejayhess
29 views
Oct 03, 2026
~2 min read
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1
My buddy who works in CAD said AI isn't good enough for him yet.
I took that as a challenge and wanted to prove to him this is a limitation of CAD tools, not the models.
3 beers later, we decided to try something out. Personal CAD software that builds CAD models.
I'll let you be the judge...
I took that as a challenge and wanted to prove to him this is a limitation of CAD tools, not the models.
3 beers later, we decided to try something out. Personal CAD software that builds CAD models.
I'll let you be the judge...
3:10
2
First prompt (sorry, this is what good prompting looks like):
"""
I'm going to have someone describe to you a 3D object on the fly in 3JS. Make a 3D CAD rendering thing that can export to an STL file, and maybe break it up into STL files or something for 3D printing. I don't know. Just imagine that it's 3D design software, and we need to have some controls to expand it and put together the assembly and a bunch of shit like that. Imagine you're a good CAD engineer, and it's got everything you need.
You're also going to design the thing that this guy's about to tell you. He's about to tell you what you're going to make now. Oh God, all right, you're going to make a three-axis metal 3D printer. It's got to be super fucking detailed, unbelievably detailed. I want you to run through this and then use Opus 55 Max sub-agents to review different categories here. Go online and understand what the Gauntlet loop is. I want you to run that with super, super critical reviewers until this is utterly perfect, and then open it in the browser.
"""
Shoutout @mattshumer_
"""
"""
I'm going to have someone describe to you a 3D object on the fly in 3JS. Make a 3D CAD rendering thing that can export to an STL file, and maybe break it up into STL files or something for 3D printing. I don't know. Just imagine that it's 3D design software, and we need to have some controls to expand it and put together the assembly and a bunch of shit like that. Imagine you're a good CAD engineer, and it's got everything you need.
You're also going to design the thing that this guy's about to tell you. He's about to tell you what you're going to make now. Oh God, all right, you're going to make a three-axis metal 3D printer. It's got to be super fucking detailed, unbelievably detailed. I want you to run through this and then use Opus 55 Max sub-agents to review different categories here. Go online and understand what the Gauntlet loop is. I want you to run that with super, super critical reviewers until this is utterly perfect, and then open it in the browser.
"""
Shoutout @mattshumer_
"""
3
Second prompt just to get the video:
"""
Can you add a button that does a few things
1 - I want a floaty cursor style demo to play that shows all the features of the CAD software
2 - I want it to show off what was built and flash some full screen metrics on the actualy build and desing
I will then press that button and screen record the flow
"""
"""
Can you add a button that does a few things
1 - I want a floaty cursor style demo to play that shows all the features of the CAD software
2 - I want it to show off what was built and flash some full screen metrics on the actualy build and desing
I will then press that button and screen record the flow
"""