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Old 04-11-2016, 09:11 AM
FI93 (Norm)
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FI93 is offline
 
Join Date: Sep 2015
Location: Moss Vale NSW Australia
Posts: 35
concealed furniture swivelling rollers

These concealed furniture castors from Bunnings are excellent for the rotating base of a home made dobsonian. still use thelaminate as the rollers will roll quite effectively and if the mount is too free then it is a simple matter to make a spring loaded friction pad to give a bit of "Grab", all you need is a compression spring and two 3/8 inch washers, a 3/8 inch bolt with two nuts, a bit of white cutting board n glue.
I have put them on the 8 inch f6 dobsonian and it is silk smooth.
next is the home built 10 inch newtonian/dobson.Click image for larger version

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