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Dynamax 8 SCT Restore

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#51 clamchip

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Posted 06 January 2022 - 04:33 PM

I need a dedicated library, that will free up more room for telescopes.

Oh, and a bunk bed for my wife and I.

 

Robert


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#52 caveguy

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Posted 10 January 2022 - 11:15 PM

Interested to hear how it all pans out.



#53 RDFox

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Posted 10 January 2022 - 11:34 PM

So far so good. Decided to mount the cell and build from there. It’s easier with my short fat fingers.

 

 

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#54 Mitrovarr

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Posted 11 January 2022 - 12:09 AM

Wow. That looks amazing so far!
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#55 Gil V

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Posted 11 January 2022 - 10:18 AM

Looks great. I’ll search for that knob today. Let me know if you get hung up on any of the OTA assembly steps. That’s a little process.
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#56 Gil V

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Posted 12 January 2022 - 11:29 AM

Unfortunately, I do not have a spare RA slow motion knob. Apologies…

#57 Maximumron

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Posted 12 January 2022 - 02:54 PM

Unfortunately, I do not have a spare RA slow motion knob. Apologies…

Gil - Were those machined aluminum and black anodized or only flat black paint? I'm at work and referencing photos of my scope and cant really tell.

 

RDFox - If you cant find a replacement that suits your needs, let me know. I'll remove mine and copy it. But I cant anodize or paint. It may take just a bit of time but doable on my end.


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#58 RDFox

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Posted 12 January 2022 - 03:36 PM

Thanks so much, but I think I can find one that works. I’m a patient person so if nothing else I’ll whip one up on a lathe.

sounds easy, how hard could it be. LOL


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#59 RDFox

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Posted 12 January 2022 - 03:37 PM

Unfortunately, I do not have a spare RA slow motion knob. Apologies…

That’s ok, I forgive you. I think I can get one or make one.

Again, Thanks



#60 Gil V

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Posted 13 January 2022 - 11:34 AM

I can measure one off my existing DX-8. It’s just a cylindrical knurled knob with a hole for the shaft, and a set screw to secure it.
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#61 RDFox

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Posted 13 January 2022 - 02:15 PM

I can measure one off my existing DX-8. It’s just a cylindrical knurled knob with a hole for the shaft, and a set screw to secure it.

Awesome!



#62 RDFox

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Posted 18 January 2022 - 10:51 PM

Ok, I think I’m about 90% finished. I still have to collimate it, I did a quick and dirty collimation test with a pinhole flashlight at about 100’. It looked like it was in the ballpark.

 

 

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#63 Ben H

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Posted 18 January 2022 - 11:35 PM

The paint scheme looks really nice, great job. 


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#64 davidc135

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Posted 19 January 2022 - 03:54 AM

waytogo.gif That's a really smart restoration job. Hoping the optics are decent.  David


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#65 RDFox

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Posted 19 January 2022 - 06:59 AM

waytogo.gif That's a really smart restoration job. Hoping the optics are decent.  David

Me too!


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#66 Don07tncav

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Posted 19 January 2022 - 07:40 AM

WOW! What a great restoration.



#67 Stevegeo

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Posted 19 January 2022 - 07:49 AM

My dyna was deforked by previous owner and repainted the forks and base with epoxy paint...

 And my thought was to repaint the OTA a brilliant white..... and your photos convinced me....  wow.  That's sharp!

I am also polishing up the golden tripod , now that i have time to do so.  

 

Thanks for sharing.. 

 

Stevegeo,    Area3751  observatory  otisco  lake  NY


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#68 Gil V

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Posted 19 January 2022 - 11:32 AM

Did you make sure the main baffle was centered in relation to the front cell? That’s a critical assembly step, and has to be performed whenever you remove the rear flange.

#69 RDFox

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Posted 19 January 2022 - 02:11 PM

I did make one mistake, (I know just one, LOL. Can anybody point it from the pictures?



#70 RDFox

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Posted 19 January 2022 - 02:14 PM

Did you make sure the main baffle was centered in relation to the front cell? That’s a critical assembly step, and has to be performed whenever you remove the rear flange.

To the best of my ability. Eyeballed it with two pair of readers on, used precision straight edge, and eyeballed it some more.



#71 Maximumron

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Posted 19 January 2022 - 03:01 PM

I did make one mistake, (I know just one, LOL. Can anybody point it from the pictures?

I see it but who cares, I think this is a wonderful effort and magnificent results. Congratulations!



#72 Terra Nova

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Posted 19 January 2022 - 03:08 PM

Ok, I think I’m about 90% finished. I still have to collimate it, I did a quick and dirty collimation test with a pinhole flashlight at about 100’. It looked like it was in the ballpark.

Beautiful work! It has become a really pretty scope!



#73 deSitter

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Posted 20 January 2022 - 05:58 PM

Ok, I think I’m about 90% finished. I still have to collimate it, I did a quick and dirty collimation test with a pinhole flashlight at about 100’. It looked like it was in the ballpark.

Oh MAN is that pretty!

 

-drl



#74 highfnum

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Posted 21 January 2022 - 07:32 AM

wow thats a clean machine



#75 Gil V

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Posted 21 January 2022 - 08:55 AM

You have to make a target with a set of centered circles, and align the main baffle with a visual back and collimation cap. The assy has to be shimmed between the rear cell and flange to center the baffle.

Absolutely critical step. I wouldn’t even proceed further without doing that. I’ll put something together to illustrate.

Edited by Gil V, 21 January 2022 - 09:06 AM.

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