Spare 80t Gear for 9x20 Lathe

[brino]

I read somewhere that 3D printers used
PVC plastic, which is not know for its strength and does break down with age and UV exposure (sunlight).

Actually the most popular plastic is PLA (Polylactic Acid: https://en.wikipedia.org/wiki/Polylactic_acid)
Also poular are HIPS (high-impact poly styrene: https://en.wikipedia.org/wiki/High-impact_polystyrene)
and ABS (acrylonitrile butadiene styrene: https://en.wikipedia.org/wiki/Acrylonitrile_butadiene_styrene)

There are even a number of plastic filaments with embedded metal powders (bronze, stainless, copper) and some with fibres making a stronger composite.

Each have their own characteristics.

-brino

 

[brino]

if you find somebody with a gear to scan plenty of people are 3d printing gears. or posibly online the 3d file can be found for gears.

Autodesk Fusion-360 (free for home use) has a built-in spur gear add-in that makes gear design simple.
I posted a little about it here: https://www.hobby-machinist.com/threads/has-any-body-tried-these-threading-gears.75340/post-642147

-brino

 

[LuJon]

Tubalcain printed some PLA gears for his atlas lathe and there were plenty of reports from others that they worked great for change gears. It took me 28 minutes to print a 32T gear.

I need to spend some time learning how to draw the keyway in fusion so I can make any gear I want quickly.

Sent from my SM-N950U using Tapatalk

 

[marksbug]

I need to talk my brother into buying a 3d printer.....I already have tomany toys..and he would think it was his idea....