Join Kacie Hultgren for an in-depth discussion in this video Design rules: Avoid overhangs, part of 3D Printing Project: Designing a Replacement Part.
…Let's talk about ways to solve our issues with support material on our print.…The first design rule for 3D printing is to avoid overhangs over 45 degrees.…Overhangs within this limit can be printed…without support, saving print time and material.…And then your part won't require post processing or clean up.…Let's take a look at our part and come up…with some strategies for redesigning it to print without support material.…First, we can print it in two pieces.…Designing a hole into the knob base.…
So the sleeve cylinder could securely be glued in place.…Or, we can rethink the part.…Is the sleeve really necessary?…The knob needs to firmly attach to the stove, but maybe we…can accomplish this by deepening the base and foregoing the sleeve entirely.…Or what about printing it upside down?…If the sleeve is pointing up, it won't require support material at all.…Then we just need to redesign the face of the knob to follow the 45 degree rule.…How do you want to solve the issue on your knob?…I think I'll divide my part into two pieces, I'll have more…
- Measuring with calipers
- Modeling in 3D with Tinkercad
- Creating holes and complex shapes
- Plating and printing
- Optimizing and reworking the design