EAF Standard Bolts Too Short for Explore Scientific APO EDT Series Rack & Pinion Focuser

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fatboy1271
Posts: 6
Joined: Wed Aug 28, 2019 9:31 pm

EAF Standard Bolts Too Short for Explore Scientific APO EDT Series Rack & Pinion Focuser

Post by fatboy1271 » Fri Aug 30, 2019 7:03 pm

I purchased an EAF Standard yesterday at my local camera/telescope store! I was so excited to get it installed; however, the M4 bolts on my focuser are recessed and all of the bolts that come with the EAF are the same length as what's already in the focuser. I went to a hardware store and purchased 4 different length M4s. I will try them out tonight to see which length works best.

Explore Scientific APO EDT Series Rack & Pinion Focuser:
ES APO EDT Series RP Focuser 01.jpg
ES APO EDT Series RP Focuser 02.jpg

fatboy1271
Posts: 6
Joined: Wed Aug 28, 2019 9:31 pm

Re: EAF Standard Bolts Too Short for Explore Scientific APO EDT Series Rack & Pinion Focuser

Post by fatboy1271 » Fri Aug 30, 2019 11:37 pm

I ended up using M4 x 25 and two washers: an original washer from the focuser and one washer from the EAF kit. Everything is working great now!

Katherine.Tsai
Posts: 317
Joined: Fri Dec 07, 2018 10:24 am

Re: EAF Standard Bolts Too Short for Explore Scientific APO EDT Series Rack & Pinion Focuser

Post by Katherine.Tsai » Tue Sep 03, 2019 10:59 am

Hi Sir,
Thanks for your feedback!
I am sure others want to see this info.

stubblejumper
Posts: 27
Joined: Thu Aug 30, 2018 12:01 am

Re: EAF Standard Bolts Too Short for Explore Scientific APO EDT Series Rack & Pinion Focuser

Post by stubblejumper » Tue Oct 15, 2019 6:45 pm

I have a similar problem with my AT65EDQ. The bolts are too short but I am confident I can buy longer ones. However I am curious as to what you did to get around the tension bolt for the drawtube. The supplied bracket doesn't accommodate that bolt.

Don

astrointro
Posts: 1
Joined: Fri Oct 18, 2019 10:50 pm

Re: EAF Standard Bolts Too Short for Explore Scientific APO EDT Series Rack & Pinion Focuser

Post by astrointro » Sat Oct 26, 2019 6:12 am

I wonder the same thing about the tension bolt. I guess the tension bolt doesn't serve any purpose when you have a motorized focuser so you can just unscrew it and leave it out.

Katherine.Tsai
Posts: 317
Joined: Fri Dec 07, 2018 10:24 am

Re: EAF Standard Bolts Too Short for Explore Scientific APO EDT Series Rack & Pinion Focuser

Post by Katherine.Tsai » Fri Nov 01, 2019 7:53 am

astrointro wrote:
Sat Oct 26, 2019 6:12 am
I wonder the same thing about the tension bolt. I guess the tension bolt doesn't serve any purpose when you have a motorized focuser so you can just unscrew it and leave it out.
Yes.

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