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Futur project adding second fork Nexstar 8se

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#1 Walliut

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Posted 11 July 2019 - 08:43 PM

Hi
Before I dig in my project, I would like to know if anybody have already did this. I plan to build a second arm on my Nexstar8se I want to do that for : add stability, spread the weight and make a kind of build in accessories.

I want to remove the AA battery compartment and the 2 port from the base. Inside the second fork, I will make a space to fit in my talented 6000 battery pack( route the power cable inside the mount) relocate the 2 aux port on this arm( plug face the outside) split the aux port and install my sky portal in the arm. I will add 2 output 12v jack on that arm too ( for accessories like dew heater and other)

I think I can did that in a way that I can take everything off and get it back to original.

I will do a machining aluminum brace and bolt on thru 4 hole that i will do and tread on the base. With the OEM cover and AA battery compartment remove, it will give more space for the focal reducer and 2in diagonal ( I think its better for gear and motor to did that then use a extended bar and add on counter weiht) I have access to a 3d printer. I will print a new base cover and a cover for the new arm.
For the arm I was thinking to mouth a ball bearing on the top with a dovetails bar. I don't know exactly how I gonna fix it on the OTA cause. It will need to be pretty aligned if I want the bar fixe on the OTA. If not it will stress the OTA... I'm not sure about this part.

I know I should have bought a CPC or an evolution but I didn't. Not enough money.

What do you guys think ?

Edited by Walliut, 11 July 2019 - 08:46 PM.


#2 crn3371

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Posted 12 July 2019 - 12:21 AM

I’d sell the 8se and get the mount you want. It seems like a lot of work for marginal gain, plus the prospect of destroying your mount.

#3 Neptune

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Posted 12 July 2019 - 06:35 AM

I have been considering a similar project with my CPC11.   I want to put rechargeable batteries in the left and/or right arm of my mount. Seems like there is plenty of room under the plastic cover(s).  I could add a small LED power meter, but that would mean cutting a rectangular hole in the plastic arm cover (could hurt resale).  I would ideally like to use the mounts 12v. power port as a charging point for the batteries and power port if I wanted to use 12v DC again. 

 

One thought to consider or further investigate, I had read a few years ago about someone who removed the fork(s) from the base of a SCT and then tried to reattach them with poor GOTO pointing results.

 

I also like crn3371's opinion. Save up and get the one you really want. I would have got the 9.25" evolution, but I heard from a good salesperson that that setup is not as stable as the smaller sizes, plus added aperture is never a bad thing, hence the 11.



#4 Walliut

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Posted 12 July 2019 - 06:36 AM

Yes lot of work but like I said , I will be able to put it back to original , only thing is gonna be 4 hole on the base that will be cover when reassemble.

#5 Walliut

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Posted 12 July 2019 - 06:38 AM

You think it's not gonna be more stable with two arm ?

#6 junomike

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Posted 12 July 2019 - 07:52 AM

Easier to just sell the SE Mount and pick up a CPC1100 which someone has already De-forked (the OTA).


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