Most of the tripod hardware was pretty rusty, so I considered replacing all of it with stainless.
But that created a few new issues:
1. Locally I couldn't find M8 Metric bolts in the correct length.
2. The Metric hardware I did find was expensive, 2 to 3 times the cost of Standard.
3. Keeping the scope as original as possible.
For example, my local hardware store had M8 wing nuts at $4.29 ea.!
The M6 were $3.29. so just the cost for the 12 wingnuts would have been $48.80 (with sales tax),
which is almost what the complete scope cost ($50)
Then even if I could find them, based on close sizes I estimated an additional $25 for the rest of bolts and washers.
If I choose to use Standard hardware, the cost to replace everything came to a somewhat more reasonanble $35.
Later I checked some of the Metric sizes on McMaster-Car and they appeared to be much better priced.
Since the challenge had been to keep the scope as original as possible and since that included the hardware,
I went back to that plan. Also, keeping the total cost of the project low is part of the fun of the challenge.
It's a bit harsh, but some might call it a Miserly Restoration of a Mizar!
Since many vintage scopes have painted wingnuts and washers,
I experimented with painting the bolt heads and wingnuts.
Using new washers and slipping them into the legs,
I tried silver, then black, but since it matches the mount and other brackets,
a darkish metallic gray ended up looking the best.
These are the bolts for the top hub and middle tray.
Most of their plating just peeled off so the bolt heads needed to be painted.
Like the touch ups I mixed silver and black and then hand painted them using two light coats.
The tape roughly wrapping them is so they wouldn't roll off the wood stick while they dry.
Since their heads cleaned up fairly well, only the wingnuts were painted for the lower bolts.
Here's a before shot showing the plastic connectors of the tray brackets.
And after a good polishing with Blue Magic.
Only one screw was thought to be needed, but later I found one of the others had wrong sized threads.
Happily they turned out to be stainless so they were given the Blue Magic treatment.
The hardware for the circular tray cleaned up OK. The thick washer is threaded and the other is not.
I'm guessing that the thick threaded washer goes directly under the tray,
then the thin washer goes under the brackets followed by the wingnut.
Does anyone know if that's the correct order?
Also, now that they have been retouched, I'd like to come up with some kind of thin washer
or gasket to protect the brackets from chipping each other.
There's no more room for additional photos so the next post will be about the washers.
Edited by Kasmos, 23 March 2020 - 04:49 AM.