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Esprit 120 focuser knob rubber spares

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#1 rodrigol

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Posted 02 August 2021 - 07:44 AM

Hi,

 

The rubber rings on my Esprit 120 focuser knobs have desintegrated. Does anyone know if one can get spares for these? I'm happy to use O-rings to replace these but, should I want to sell the scope one day I'd like to have the original rubber rings.

 

Kind regards,

 

R. 


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#2 Pompey Monkey

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Posted 02 August 2021 - 08:19 AM

Same happened to my Esprit 80.

I will report back if i find anything.


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#3 Marcelofig

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Posted 02 August 2021 - 03:04 PM

The same thing happened to my Esprit 100. I use it for AP and the motor is installed on the other knob, so I never really use it manually. But it would be nice to be able to replace that rubber band, I was thinking if it is possible to replace the whole knob.


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#4 Loren Toole

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Posted 02 August 2021 - 09:50 PM

I own a Espirit 120 purchased in 2016... the focuser grip bands did literally fall off after a couple of years. But they didn't disintegrate, the rubber just separated along one clean break. I think SW's adhesive is really poor and it can't hold the rubber rigidly to prevent breakage.

 

Knowing that this would be hard to replace, I used double-sided tape and very carefully wrapped the bands back on the metal knob which was first wrapped with a tape layer. This worked, and I haven't had any additional problem with the grip bands since then (probably at least two years). I'd recommend that you try to salvage the factory-supplied bands if they can be re-used.... the rubber seems to be durable if it's tightly bound to the knob.

 

Loren


Edited by Loren Toole, 02 August 2021 - 09:50 PM.

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#5 rodrigol

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Posted 05 August 2021 - 04:45 AM

First Light optics (FLO) has contacted the SW distributor in the UK. The rubber grips exist as spare parts and can be purchased for £4 each in the UK. FLO are getting 2 for me. 

 

I hope this helps.

 

R:)


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