Main stand spring

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4 years 9 months ago #629 by ian
Replied by ian on topic Main stand spring
Hello Peter
That would be a great help if you already have some spare springs.
With Wolfangs sketches a working stand would be with in reach!
Ian

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4 years 9 months ago #631 by Wolfgang
Replied by Wolfgang on topic Main stand spring
Hello,

here are the measurements of my pen, it works well.
Note that the rod has to be much thinner than the inner diameter of the spring, because it gets smaller and blocks otherwise.
The outside diameter must not be bigger otherwise it does not fit into the tube of the stand.

Greeting

Wolfgang
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4 years 9 months ago #632 by Alan
Replied by Alan on topic Main stand spring
Dear Wolfgang.
Excellent working sketch!
Many thanks yet again for taking the trouble to respond so quickly.
Kind regards,
Alan

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4 years 9 months ago #633 by keithsams
Replied by keithsams on topic Main stand spring
hi
I have several rods and tubes all ex stock, I believe ex Jarvis ex david hales
no good springs
I will be at Banbury on sunday otherwise please get in touch

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4 years 9 months ago #634 by Alan
Replied by Alan on topic Main stand spring
Keith,
Thanks- I seem to have located everything except the spring itself, which Peter is offering to supply in September.
So I’ll leave these to those in greater need.
Regards,
Alan

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4 years 9 months ago #645 by ian
Replied by ian on topic Main stand spring
Hello Wulfgang
I do not have an original stand.
Is the internal dia of the tube 18.7mm
so both end pieces will fit into them?
What is the wall thickness so i can
make mine strong enough!
What does the small spring and ball bearing do?
It must act as some kind of locator
hope you can help
best wishes
Ian

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