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Classic rat trap pedals without bearings? What the heck?

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Classic rat trap pedals without bearings? What the heck?

Old 03-13-20, 03:05 PM
  #26  
scarlson
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Originally Posted by Salamandrine View Post
It'd be helpful if you knew a hobbyist machinist with a big lathe...
I assume you're referring to me?



I consider myself something of a dust cap reproduction specialist.

Unfortunately, I've lost my lathe access for the time being because of the coronavirus shutting down the university. If you can find me a shop to use for free in the Boston area, please let me know and I'd be more than happy to make you a dust cap or two in return. I could turn one of black delrin pretty easily.
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Old 03-13-20, 06:30 PM
  #27  
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Originally Posted by scarlson View Post
I assume you're referring to me?

I consider myself something of a dust cap reproduction specialist.

Unfortunately, I've lost my lathe access for the time being because of the coronavirus shutting down the university. If you can find me a shop to use for free in the Boston area, please let me know and I'd be more than happy to make you a dust cap or two in return. I could turn one of black delrin pretty easily.
Actually I wasn't, but not that you've been foolish enough to remind me and the other forumites of your lathe skills, someone might take you up on that!

As it turns out, the Lyotard pedal we were discussing turns out to have a snap on dustcap, so perhaps a lathe is not applicable this time.

But seriously, that is some amazing looking work. How about a show and tell thread on how it's done? or even just post some more pictures of pedal dustcaps you've made? (maybe I missed the thread) Machining was always something that fascinated me. I have no skills or equipment or knowledge to do it myself, but it's pretty cool to see what others can do.
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Old 03-13-20, 08:03 PM
  #28  
scarlson
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Originally Posted by Salamandrine View Post
Actually I wasn't, but not that you've been foolish enough to remind me and the other forumites of your lathe skills, someone might take you up on that!
I'm dead serious. The local "maker space" is probably not my scene, but some university or workplace shop on a quiet weekend would be ideal. I prefer Hardinge HLV lathes for small work, as my avatar would suggest, but for big stuff I'd been really digging the American Pacemaker. What a beast!

As it turns out, the Lyotard pedal we were discussing turns out to have a snap on dustcap, so perhaps a lathe is not applicable this time.
Nah, I could make one. Just need to use a boring bar with a passably-shaped tool bit to machine a groove inside the dust cap so that the ridge on the pedal can just firmly engage with it, and maybe a taper to lead in. Would be a bit of trial and error, but I could get it.

But seriously, that is some amazing looking work. How about a show and tell thread on how it's done? or even just post some more pictures of pedal dustcaps you've made? (maybe I missed the thread) Machining was always something that fascinated me. I have no skills or equipment or knowledge to do it myself, but it's pretty cool to see what others can do.
Sure, here are a few more pictures. The threads and bikes in question are my Herse and Taylor tandems, each of which came missing pedal dust caps. Possibly lost in falls or other troubles? Who knows where they go.

Here's a Brampton dust cap that I messed up with the slitting saw. Before that, the threading inside was absolutely perfect.


And here's the inside of the Lyotard dust cap for the Herse.


And I've also done Stronglight dust caps and removal tools.

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