Re: Unimat watchmakers drawbar
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The links above are for stainless steel tubing and a tap for WW collets.? Copy and paste. The taps are unusual and do appear on ebay regularly.? Be careful when buying the taps (and dies). They appear under the correct size heading .275-40 but in the description say different things like 4-40 or 1/4-20 etc.? This is how some import companies get around being able to send you the wrong thing. Just fyi. The tubing may be able to be tapped as is, but I have not taken the time yet to get into it. The stainless tube may need to be slightly drilled or bored or reamed to not work the tap too hard. The collets engage a lot of thread and even 50% engagement should work fine. I was lucky enough to have purchased a used db200 that was reamed out to just over 5/16" so that tubing slips through perfect. I am turning a brass nose for my regular spindle to accommodate my WW and Moseley conoid collets. I plan to make a draw bar and turn an aluminum or brass knob for the end and superglue in place (or loctite green) Hope this helps. On Tue, May 2, 2023 at 8:52?AM Ruben <groen.drenthe@...> wrote: I have the watchmakers spindle here without drawbar. |
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