Author Topic: I made a thing.  (Read 1124 times)

boysagiskest

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I made a thing.
« on: December 28, 2017, 11:03:41 AM »
To complement my 10" dobsonian, I made a 4.5 incher from a Craigslist sourced Meade DS 114. Portability was the goal and I think I hit it out of the park. I will sand and paint it later, I'm leaving on a trip in a few days and just wanted it built.

Also, if anyone needs an equatorial mount, I have one now with no intention of using.

Let me know what yall think.Attached Thumbnails



therpomercu

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Re: I made a thing.
« Reply #1 on: December 31, 2017, 04:16:48 PM »
Very nice. The mount reminds me of my 6" Dob in that you used PVC bearings and V shaped instead of circular notches in the side boards.

Elroy Stockton

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Re: I made a thing.
« Reply #2 on: January 01, 2018, 12:27:27 AM »
nice, I am building the same, thing. I have the base built. Just waiting on the tube. It is hard to find a local tube that isn't way over priced and not 40 miles away.

exvermabo

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Re: I made a thing.
« Reply #3 on: January 02, 2018, 12:34:30 AM »
nice job, well done! let us know how it works....

reobladvasys

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Re: I made a thing.
« Reply #4 on: January 08, 2018, 03:19:13 AM »
As they say in Texas, "That'll work!" Good luck and happy hunting!!!

STARKID2U

Brian Ross

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Re: I made a thing.
« Reply #5 on: January 09, 2018, 07:57:33 AM »
Nice job!

tranardefa

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Re: I made a thing.
« Reply #6 on: January 10, 2018, 06:48:17 AM »
Quote
nice, I am building the same, thing. I have the base built. Just waiting on the tube. It is hard to find a local tube that isn't way over priced and not 40 miles away.

Get a mirror and build a tube! Richard Berry's Build Your Own Telescope book has great plans for a 4-inch reflector where you can build the tube and mirror cell with very basic hand tools. There's lots of inexpensive 4.5 inch mirrors running around for sale.

byhodete

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Re: I made a thing.
« Reply #7 on: January 10, 2018, 10:20:45 PM »
Quote
Quote

nice, I am building the same, thing. I have the base built. Just waiting on the tube. It is hard to find a local tube that isn't way over priced and not 40 miles away.

Get a mirror and build a tube! Richard Berry's Build Your Own Telescope book has great plans for a 4-inch reflector where you can build the tube and mirror cell with very basic hand tools. There's lots of inexpensive 4.5 inch mirrors running around for sale.
Thanks, maybe a winter project.
People around me are asking $100.00+ for an old 4.5 spherical telescope. The haggling, the driving to pick it up, inspecting it ...
Not worth it. I can buy a brand spanking new one for $114 from amazon. Now $50.00 might be the winning price.

I'm thinking with the mount both the op and I have, It would be a winter quick peek scope.

Brandon Costello

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Re: I made a thing.
« Reply #8 on: January 11, 2018, 05:03:35 PM »
Quote
Quote

Quote

nice, I am building the same, thing. I have the base built. Just waiting on the tube. It is hard to find a local tube that isn't way over priced and not 40 miles away.

Get a mirror and build a tube! Richard Berry's Build Your Own Telescope book has great plans for a 4-inch reflector where you can build the tube and mirror cell with very basic hand tools. There's lots of inexpensive 4.5 inch mirrors running around for sale.
Thanks, maybe a winter project.
People around me are asking $100.00+ for an old 4.5 spherical telescope. The haggling, the driving to pick it up, inspecting it ...
Not worth it. I can buy a brand spanking new one for $114 from amazon. Now $50.00 might be the winning price.

I'm thinking with the mount both the op and I have, It would be a winter quick peek scope.
The Meade was listed on Craigslist for $100, but I had no intention of paying that much, I only paid an extra $20 for my larger Dob (which I've since discovered has an 8" mirror, the tube is 10"ID, so I mistakenly thought that meant a 10" scope. Oh well).
The model is supposed to have a computer driven mount (it didn't), and it was in general just a bit abused. There's a fairly big dent in the tube about halfway down and the mount wouldn't track. But, the mirrors are in fine shape and it resolved images nice and clearly so Ioffered him $30. He made some chatter about how he bought a new eyepiece for it (which he did in all fairness, it was still in its box and not dirty), countered with $40 and I accepted.
I figure, I bought an eyepiece and it came with mirrors, my choice how I want to handle from there.https://telescopes.n...1-1-4-inch.html (the eyepiece he sold me)
Turns out the mount was easy to fix but I didn't want it anyways. I see bare tubes for this model on eBay from time to time, so I can swap everything over if the dent bothers me, or just build my own.
So, $100 can become $40 or less really quickly on Craigslist. Also search Facebook marketplace, that's where I got my 8 incher. Good luck on your search!
Speaking of the 8, I was shocked to find my 4.5 outperforming it. I knew the mirrors needed cleaning but I didn't realize it was THAT bad. I should have taken before/after photos. The guy must have stored it with nothing covering the mirror from day one. I couldn't even get a good reflection of my face in it.
Now, good as new (and using shopping bags secured with rubber bands for caps). Kicking myself for not having a larger vehicle for my trip, I'd love to bring the 8 along for a good proper first light with everything now as it should be. Never thought I'd say a Tahoe was too small. Guess it's time for a Suburban.

coachroninil

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Re: I made a thing.
« Reply #9 on: January 12, 2018, 04:44:11 AM »
Your setup reminds me of mine, as I have a tabletop Dob on a homemade stool, scientifically engineered for optimum height. Patent Pending. Clear skies, Mark

Kareem Gillespie

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Re: I made a thing.
« Reply #10 on: January 12, 2018, 11:52:08 AM »
Having been a plumber for over 25 years I can honestly say I've never seen a toilet floor flange used for anything other than mounting a toilet - until now! Nicely done.

Cheers,
John

anficonco

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Re: I made a thing.
« Reply #11 on: January 13, 2018, 06:17:31 AM »
BlueTrane2028

I finished my 200mm Dobsonian last month.
Before that I was using a home-made 125mm F/7 Dobsonian.

I'm not sure you are aware of the treasure you have there so I hope you don't mind if I will insist on the topic.
After finishing my 200mm (nearly 8 inch ) Dob I started the upgrading of the smaller 125mm Dobsonian by replacing the 1.25'' focuser with a 2'' focuser.
Last night I was testing the small Dob with 30mm eyepiece at 29x and 28mm eyepiece at 31x  , both on 2'' standard.
The field of view I was getting on the sky was of 2 degree because both eyepieces are Erfle's of 60 degree apparent field.
I cannot describe how beautiful is that in Cygnus ,in the Milky Way !

I believe your 4.5'' telescope is F/8 and it have a 2'' focuser.
Get a 25mm or 30mm Erfle on 2'' standard and I promisse you will see fantastic views.
I will not dismiss my smaller reflector ,on the contrary , just decided to do an well deserved overhauling.

Ziridava

Gregoryfleds

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Re: I made a thing.
« Reply #12 on: September 27, 2018, 11:00:17 PM »
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JeffreyMooms

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Re: I made a thing.
« Reply #13 on: September 27, 2018, 11:08:05 PM »
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ManuelAwaro

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Re: I made a thing.
« Reply #14 on: October 07, 2018, 01:52:27 AM »
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