Home made fiber gears - anyone ever tried?

[burke]

The hunt continues for a replacement gear, but a bit of searching here suggests that delrin might be a material to try.

This site sells rods that are exactly the diameter I need and a one foot rod would leave room for many, many errors

https://www.aircraftspruce.ca/catalog/m ... rinrod.php

Anyone ever done this?

[Lucius1958]

Do you have gear cutting machinery?

Bill

[burke]

I do not, but I figure if a guy can reproduce the Antikythera mechanism with just a file, I have a shot with one gear made out of plastic.

[Lucius1958]

I do not, but I figure if a guy can reproduce the Antikythera mechanism with just a file, I have a shot with one gear made out of plastic.

Wow: I hadn't heard about that feat. Is there a link?

Bill

[Phono-Phan]

I used a black Delrin sheet to have gears made. McMaster-Carr is a good source. A custom gear shop, Edgerton Gear, used the material to make the gears. The precision of cutting the teeth is vital. Using a file may not get the necessary results.

[burke]

I do not, but I figure if a guy can reproduce the Antikythera mechanism with just a file, I have a shot with one gear made out of plastic.

Wow: I hadn't heard about that feat. Is there a link?

Bill

Something I saw on PBS I think or maybe Discovery, but sometime ago and I'm afraid I don't recall the specifics.

[burke]

I used a black Delrin sheet to have gears made. McMaster-Carr is a good source. A custom gear shop, Edgerton Gear, used the material to make the gears. The precision of cutting the teeth is vital. Using a file may not get the necessary results.

BTW - this is only a plan C in case I absolutely can't find either the spindle or a reasonably priced N0. 175 motor with a decent gear. I would also look for Canadian sources for both the material and perhaps as you suggest a fabricator. Shipping often far exceeds any sensible amount when getting stuff made south of the border.

[Curt A]

Antikythera Mechanism:
https://www.smithsonianmag.com/history/ ... 180953979/
https://www.youtube.com/watch?v=UpLcnAIpVRA
http://naturedocumentaries.org/9444/vir ... mechanism/

An illustration of the Antikythera geartrain is shown below:

[JerryVan]

The hunt continues for a replacement gear, but a bit of searching here suggests that delrin might be a material to try.

This site sells rods that are exactly the diameter I need and a one foot rod would leave room for many, many errors

https://www.aircraftspruce.ca/catalog/m ... rinrod.php

Anyone ever done this?

I guess I've come to the conversation late. What is the gear you're needing? Can you show a photo of it?

[burke]

The hunt continues for a replacement gear, but a bit of searching here suggests that delrin might be a material to try.

This site sells rods that are exactly the diameter I need and a one foot rod would leave room for many, many errors

https://www.aircraftspruce.ca/catalog/m ... rinrod.php

Anyone ever done this?

I guess I've come to the conversation late. What is the gear you're needing? Can you show a photo of it?

Here is the one I'm looking for:
http://forum.talkingmachine.info/viewto ... =9&t=35676
...and here [first and only answer to OP's question] is the little Paillard its out of:
http://forum.talkingmachine.info/viewto ... =2&t=33220
As mentioned there are still folks looking and this is a last resort, hail mary pass, if the last paillard fiber on earth was sold last year ... option