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To get the best out of 3D printing, it helps if you can design your own parts. In this tutorial series, we will learn to use a free 3D CAD program to do just that.
In this episode, I demonstrate how to alter the mating surfaces of multi part designs to include a shadow line. This technique is used in most professionally produced injection molded parts and offers a range of benefits.
3D design for 3D printing source CAD: https://cad.onshape.com/documents/b5475ccd1f83733e348c59b0/w/f0f78c61f2ac76b0b03c0692/e/ca79817610f17c7ec08c141b?renderMode=0&uiState=64b62dfcf9e29341a631eb04
0:00 Introduction
3D design for 3D printing playlist: https://www.youtube.com/playlist?list=PLGqRUdq5ULsONnjEEPeBxxStEsobDKAtV
0:40 Injection molding recap
1:32 Injection molding design features to ignore
3D printing vs injection molding video: https://youtu.be/xW1Ob5uzfF8
Sumitomo bottle cap video: https://www.youtube.com/watch?v=og4Uw5bJhO0
2:50 Shadow lines
3:23 Simple example - box
PEO patterned bed on Aliexpress: https://s.click.aliexpress.com/e/_DCTHuU1
7:15 Complex example - curved mating surfaces
Lumimate torch video: https://youtu.be/DAnosimSZlE
11:38 Summary of benefits
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