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Old 27-10-2017, 06:58 PM
JA
.....

JA is offline
 
Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 3,052
Quote:
Originally Posted by The Mekon View Post
I have a question that may appear a bit simple -but here goes.

My EQ6 mount has a special counterweight shaft that was machined up to be 24mm diameter. My vernier measures it at 23.97mm

Now I want to buy a smaller EQ3 counterweight (19mm hole) and then drill it out.

Q. If I order a 24mm drill, can I be assured that it will drill out slightly larger than 24mm, or will it end up being an interference fit and I will struggle to get the weight on the shaft? If so I will have to order a 25mm drill.

many thanks
Hello M,

You'll be fine with a 24mm drill (in a drill press with the work well clamped), BUT it would be better if you had a friend with a lathe (and boring bar). Then there's no need for a 24mm drill and you could then tune for whatever degree of fit you prefer and add a chamfer to the hole to ease the fit to the shaft.

Best
JA
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