tuning bresser exos 2 (the white one)

[gaiden]

hello guys!

I'm searching for info all over the internet...

well, my exos2 (the bresser model, the white one, NOT the PMC8)

still drive me crazy and also after a complete regreasing still point of stiffness in both axes. worst: now it's almost impossible to reduce backlash between motor's gears and worm's gear. 

 

 

 

phd2 guiding is still a mess and ever if I could get pinpoint stars in 180" poses here you can see some PHD2 typical graphic:

 

after switching to OAG I had a little improvement but...

 

balancing is still a mess and when I tear it up to regreasing I noticed this different surface on the dec axe: smooth and knurled both. as you can see in this pic:

 

so, I think to replace bear-balls and maybe replace the original go-to motorisation with onstep system like this: https://fr.aliexpress.com/item/1005005545127070.html?spm=a2g0o.cart.0.0.e878378dunHuEC&mp=1&gatewayAdapt=glo2fra
Ideally I should have better motors, more precision, less backlash, better drivers, wifi connecting.
it's right? what do you think about? expecially about this motor kit.

thank you so much and clear sky!

[Dr_Ju_ju]

Before changing the motors etc. have you check that there are no 'stickiness'  issues with the mount when the existing motors are disconnected ??

[Fraunhoffer]

You may be able to find pulleys and belts of the correct ratio at a 'robot' hobby store and keep the drive.
(I put the Skywatcher Eq5 goto pack on my Exos 2 - needed a biy of DIY for the Dec axis motor mount - but it works fine - I do mostly visual so cant help with any guiding figures)