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This is how I made a Mandrill adapter to use a 6mm polishing mop mandrill in a Nova series chuck on my wood lathe.

A few weeks ago I bought a 6mm mandril and a 100mm polishing mop in the pound shop, unfortunately the mandrill was to narrow a diameter for my nova chuck to grip, so i needed to make an adapter.

I was going to use a friends metal lathe to do this project but i figured out that i could use the nova chuck to make the adapter from a 12mm cup square bolt. and use the taper chuck fitted in the tail stock to drill the hole.

I cut the threads of the bolt and squared the ends on the linisher.

The bolt was then fitted in the chuck and a 3mm drill was fitted in the chuck in the tail stock, the drill was set in the chuck so only about 3 mm was protruding from the jaws, with the lathe at top speed a small pilot hole was drilled a few mm deep.

The holes where then drilled out with a 5, 6 and 6.5mm drill dit to a depth of about 1 1/2" this was a nice neat fiot for the mandril.

the inside of the hole was coated with solder paste, and the assembly was clamped before being heated by a blow torch until the solder melted.  Any fine adjustment was done before the solder cooled enough to set. An engineering friend had demonstrated how strong standard soft solder could be when used to hold steel to steel.

the excess solder was removed by using a large flat file with the lathe at its lowest speed using the tool rest as a support. the head of the bolt was then polished up it a shine with a fine abrasive paper.

The mop was the fitted to the mandrill and it was spun up to top speed to remove loose threads, then bees wax was rubbed into the mop before use.

I found a plastic jar in the recycling that the whole assembly fits into, along with the bees wax blocks, this will be used to keep the polishing mop clean and dust free when not in use.


Thanks for looking and I hope you like this idea.




Excellent! I love home-made stuff that people pay money for!! My motto is If you can do it yourself, then why not? Love the setup. nice instructable! <br> <br>side note about the wax... <br>Dont use too much.. it will streak stuff you are trying to polish... those streaks are a pain to get off! <br> <br>Awesome job! <br>
Thanks, I have since got 2 more pads to beef the thing out. Not had any problems with streaking, I use the thing loaded with wax its mainly used to get a good saturation of wax into the wood, had a bit of a problem with wax buildup on a piece that had scroll work on it but noting a stiff bristle rush didn't take care off
WOW, how a clever idea and neat work! Congratulations.
Thanks Rimrar, its very simple but effective.

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Bio: Learning to live with Fibromyalgia brought on be numerous injuries some old some quite recent. Currently under no fixed agenda, just going with the flow ... More »
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