HP 91/92/97/97s printer spur (idler) gear

[Dave Frederickson]

(04-11-2016 05:29 PM)Geoff Quickfall Wrote:  So far Shapeways modeller has stated 20 dollars a gear just for modelling it to my standards with examples for refinement. Then the Shapeways cost on top of that if I read his posting correctly. Don't know what the Shapeways costs are yet.

Shapeways costs are based on machine utilization and material. If you use the HP-41 parts as an example then the gear would probably cost about $5 USD each for the strong and flexible plastic.

If you add a dollar to the cost of each gear to account for the $20 NRE then that's $6 each. I don't think that's "very expensive".

If you can get Egan Ford's daughter, she's a modller at Shapeways, to create the model on the side then maybe you can save the NRE.

Dave