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HP 46/81 idler gear
10-07-2020, 03:21 PM (This post was last modified: 10-07-2020 03:22 PM by RPZ.)
Post: #7
RE: HP 46/81 idler gear
Dear Werner and Duane,

Whew. My gear prints on paper just fine.

I have ordered some HP 97 gears from Shapeways and should have them in about a month. For all of the plastic materials I had to check a box saying print anyway. This suggests that their algorithm thinks I might not be satisfied with their quality.

The tips of my gears are slightly rounded and stubby. I kept try things until something occurred to me. My printer has a 0.4mm nozzle. It is impossible to print any detail smaller than this. Because the hot material is smashed and dragged, 1mm or 2mm is probable more realistic. Did not seem to matter on this gear.

I also order 1 steel gear just to see what it is like.

Wow. The hours I've spent in the shop machining prototypes.

As an exercise I have drawn and printed an Hp 46/81 gear. Easy to do now. Not sure if dimensions are correct.

Attached is the OpenSCAD file with some screenshots. The stl file can be uploaded to Shapeways for an instant quote.

They will print with versatile plastic for $5.00 + $10.15 handling or in platinum for $4,873.69. <grin>

Regards, Rick


Attached File(s)
.zip  HP 46:81 Printer Gear.zip (Size: 693.67 KB / Downloads: 27)
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Messages In This Thread
HP 46/81 idler gear - Duane Hess - 09-30-2020, 10:34 PM
RE: HP 46/81 idler gear - RPZ - 09-30-2020, 11:46 PM
RE: HP 46/81 idler gear - RPZ - 10-03-2020, 12:26 AM
RE: HP 46/81 idler gear - Sadsilence - 10-06-2020, 11:24 AM
RE: HP 46/81 idler gear - RPZ - 10-06-2020, 08:32 PM
RE: HP 46/81 idler gear - Sadsilence - 10-07-2020, 06:55 AM
RE: HP 46/81 idler gear - RPZ - 10-07-2020 03:21 PM
RE: HP 46/81 idler gear - markhen - 10-13-2020, 04:42 PM
RE: HP 46/81 idler gear - Sadsilence - 10-15-2020, 10:15 AM
RE: HP 46/81 idler gear - RPZ - 10-20-2020, 08:37 PM
RE: HP 46/81 idler gear - Duane Hess - 10-28-2020, 09:56 AM
RE: HP 46/81 idler gear - Duane Hess - 10-28-2020, 09:57 AM
RE: HP 46/81 idler gear - RPZ - 09-05-2022, 01:35 AM
RE: HP 46/81 idler gear - teenix - 09-05-2022, 03:21 AM
RE: HP 46/81 idler gear - Duane Hess - 09-20-2022, 06:14 AM
RE: HP 46/81 idler gear - RPZ - 09-25-2022, 09:23 PM
RE: HP 46/81 idler gear - Duane Hess - 09-26-2022, 05:23 AM
RE: HP 46/81 idler gear - RPZ - 09-27-2022, 07:21 PM



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