Questions tagged [3d-printing]

The process of creating three-dimensional objects out of plastic or other materials using a device similar to a printer.

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1answer
213 views

Are ABS/PLA too volatile to be used in cryo vacuum?

I need to use a custom part inside high vacuum (cryo vacuum), for example as a shadow mask. If PLA/ABS are not volatile, I could just print the part I need. The question is, are ABS or PLA too ...
6
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2answers
4k views

What should the size difference be between a lid and a container?

I am designing a box and lid (for a home-made micro computer). Using Autodesk Inventor (Student Version), I've created my box which looks something like this: I plan on 3D printing (ABS Plastic) the ...
1
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0answers
58 views

What is the maximum degrees per step of a stepper motor for a 3D printer?

I am making a reprap rostock (delta style printer) and I am trying to use as many parts I already have as possible. The stepper I have are 7.2 degrees per step. Even with microstepping, would this ...
6
votes
3answers
532 views

How do you make a 3D print with an accurately aligned bore hole?

I am printing a wheel with a 2.5mm hole in the middle to accept a shaft of a motor with a set screw. The problem I am having is that the wheel is always wobbly when spinning (sometimes more, sometimes ...
6
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7answers
2k views

Can I use AutoCAD to learn mechanical engineering by DOING (like programming)?

I would like to learn mechanical engineering as a side project. But, I would like to learn in a way similar to programming. Learn by doing. Of course I understand I can't build things automatically ...
2
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0answers
168 views

What material for DLP/SLA 3D printer bottom window?

What material is used for the bottom window of 3D printer that the cured resin layer does not stick to and that it is transparent to the uv (365 nm) light? And what material is used for the top plate ...
5
votes
2answers
502 views

Evaluating performance of heat sink designs without finite element simulation

I have the opportunity to do a few metal 3D prints for just the material cost, and would like to experiment with the performance of heat sink designs (mostly for fun). Since I have no experience ...
7
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1answer
194 views

How to prevent vibration loosening whilst maintaining adjustability?

I have some height-adjustment nuts screwed onto vertical threads to support my print-bed for a 3D printer. They are domed nuts and the aluminium build-plate sits on top of the domes, three holes in ...

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