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usb-nSTEP STEPPER belt drive for camera/Redcat focusing ring -- yeah we do that

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#1 rigelsys

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Posted 12 September 2019 - 05:11 PM

Hi All,

 

Just completed a usb-nSTEP STEPPER setup using belt drive to turn the focusing ring for camera lenses, and scopes like the WO Redcat that uses a focusing ring.  Looking forward to feedback from the Redcat customer, but trying it out on my DSLR, it looks to do the trick!  I think its a good alternative to split gears, as one belt can fit various size focusing rings.  Tension is adjusted by sliding the STEPPER in/out on its cross bar.  I have my DSLR attached to a dovetail bar, and the stepper rides on a crossbar attached to the dovetail bar.  

 

 

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  • image1 copy.jpg
  • camera belt 2.jpg

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#2 rigelsys

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Posted 12 September 2019 - 06:43 PM

here's a photo of the stepper and cross bar on my well worn dovetail bar, to show how it comes together.

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  • crossbar 3.jpg


#3 Richoff

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Posted 12 September 2019 - 07:01 PM

Cool, how many steps does it have



#4 guyroch

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Posted 12 September 2019 - 08:24 PM

Cool, how many steps does it have

It has n steps.

 

 funnypost.gif

 

I couldn't resist.


Edited by guyroch, 12 September 2019 - 08:25 PM.

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#5 rigelsys

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Posted 13 September 2019 - 01:17 PM

It has n steps.

 

 funnypost.gif

 

I couldn't resist.

stepper has 0.07 degree resolution (full steps) twice that in half stepping.  Given the gear ratio between the pulley gear and the focus ring, is about 3/1 that means about 0.02 degrees per full step!


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#6 rigelsys

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Posted 16 September 2019 - 05:57 PM

more photos of the WO Redcat install

 

 

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  • wo redcat on scope 1.jpg
  • wo redcat on scope 2.jpg

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#7 karambit27

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Posted 18 September 2019 - 05:17 PM

What's the cost? I don't see it anywhere on your site.



#8 rigelsys

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Posted 18 September 2019 - 06:46 PM

hi the bracket and belt gear cost is the same as for all our other stepper kits.  We do over a hundred variants of focusers with gear coupling, this is our foray into belt coupling.  A usb-nSTEP basic + belt drive system (as above) is $351.80 plus shipping.

 

thank you for the inquiry :-)




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