Arnold & Sons Thumb Rest Adjustement (it slips)

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alberttrombone
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Location: Barcelona
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Arnold & Sons Thumb Rest Adjustement (it slips)

Post by alberttrombone »

Hello everybody,

I'm having problems adjusting this thumb rest.
It slips all the time even when I tight it up with the screwdriver/allen key and doesn't work properly to hold the trombone with my left thumb.

Anyone's had the same problem and know how could I fix it?

Thanks!

Albert
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tombone21
Posts: 206
Joined: Tue Nov 13, 2018 11:19 pm

Re: Arnold & Sons Thumb Rest Adjustement (it slips)

Post by tombone21 »

This one?

https://www.matthewsmuziek.nl/en/arnold ... mbone.html

Looks like this would benefit from a shim around the bell brace to make it a bit thicker, allowing the clamp to fully tighten. Maybe some paper wrapped around, or a small strip of rubber would be great.
pompatus
Posts: 400
Joined: Fri Mar 23, 2018 2:19 pm

Re: Arnold & Sons Thumb Rest Adjustement (it slips)

Post by pompatus »

tombone21 wrote: Wed Feb 24, 2021 2:31 pm Looks like this would benefit from a shim around the bell brace to make it a bit thicker, allowing the clamp to fully tighten. Maybe some paper wrapped around, or a small strip of rubber would be great.
A small strip of bicycle innertube would probably work wonderfully.
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alberttrombone
Posts: 53
Joined: Tue Oct 16, 2018 3:23 am
Location: Barcelona
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Re: Arnold & Sons Thumb Rest Adjustement (it slips)

Post by alberttrombone »

tombone21 wrote: Wed Feb 24, 2021 2:31 pm This one?

https://www.matthewsmuziek.nl/en/arnold ... mbone.html

Looks like this would benefit from a shim around the bell brace to make it a bit thicker, allowing the clamp to fully tighten. Maybe some paper wrapped around, or a small strip of rubber would be great.
Yes, that one. I tried with sticking plaster and it keeps sliping all the time. Is very anoying.
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