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Where to find 47 teeth MXL pulley to repair a LXD 750 mount ?

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#1 XS_Man

XS_Man

    Vostok 1

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  • Posts: 174
  • Joined: 20 Jul 2016
  • Loc: FRANCE

Posted 09 November 2018 - 02:09 PM

Hi guys,smile.gif

Maybe someone could help me ?

I bought months ago a Meade LXD 750 mount, the "little beast".
More sturdy than an EQ-6 mount, it easily supports a 350 mm
telescope. I like it, it's a cool mount of the 90s'!

 

It has been (badly) modified and I try to repair the damages ! The RA
motorization was not working. After investigation I find that the 
worm was blocked because there was not enough backslash.

 

I  don't want to repair the old electronics. I have an EQ-6 goto kit
and I want to fit it to the LXD 750. The good new is that the EQ-6
and LXD 750 have the same number of teeths on gear wheels (180), so the
same demultiplication. Bad new is that there is not enough room around
worm axle to fit the well-known Rowan EQ-6 kit. It uses 47-teeth T2.5
pulley (2.5 mm step). And the outer diameter of this pulley is greatly
over available space. 

 

The only solution would be to use and fit MXL pulleys (2.03 mm step).
Finding a 48 teeth pulley is easy  : 

 

http://www.sdp-si.co...s/MXL/index.php

 

But impossible to find a 47 teeth pulley !?

 

Please, do you know where to find this "5 legs sheep" ? confused1.gif

 

Many thanks for your suggestions !

Best.

Albéric



#2 Xeroid

Xeroid

    Apollo

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  • Joined: 21 Sep 2013
  • Loc: USA

Posted 09 November 2018 - 03:45 PM

How about using 3D Printing to make that gear?

 

I thought there is a very active CN user in France who does a lot of 3D printing...will try to find his name...

 

Edited:  Found a CN user who does 3D printing and lives in France:

 

CN user name is:  ulysse31

 

Send him a personal message and ask if he can help.

 

Also, there are a number of 3D printing experts in the ATM forum.


Edited by Xeroid, 09 November 2018 - 04:04 PM.



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