Monthly Archives: February 2015

Laser Diffraction pattern research

Found a few sites/companies that manufacture difracion gratings. I should contact them and get some samples.

http://worldstartech.com/products/description/60/index

http://www.lasercomponents.com/us/product/pattern-generators-for-flexpoint-laser-modules/

http://www.edphoton.com/Other%20Standard%20DOEs%20English.htm

3d printed bevel gear-strength tests

Looking to make some 90deg gear trains, and wanted to know how much force 3d printed heard could resist.
After printing some gears, a holding block and some shafts, the testing began.

First few tries, the shaft to gear attachment kept falling. It was failing around 44 in.lbs of torque yet the gear teeth remained intact.

After redesigning the shaft to gear attachment, I was able to break some teeth at around 57 in.lbs of torque.

image

image

image

image

image

image