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Robert Patton WR Noob Offline WR Rocks! Posts: 3	lock chuck onto spindle Dec 23^rd, 2015 at 8:15am How does one lock a chuck or faceplate onto the spindle when the spindle rotation is reversed.
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Tony Rozendaal

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Re: lock chuck onto spindle
Reply #1 - Dec 23^rd, 2015 at 8:39am

Some chucks and faceplates have set screws that can be threaded into a groove that exists in the spindle near the headstock. If the groove isn't there, then the spindle threads need to be protected with some material (leather, brass, etc) between the bottom of the setscrew and the threads. Not all faceplates and chucks have these screws.

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Bob_Macgregor Senior Member Offline Round wood. Sharp steel. Posts: 458 Gender:	Re: lock chuck onto spindle Reply #2 - Dec 23^rd, 2015 at 9:01am With my chuck, which has a thread adaptor, I think it might require two set screws, one from the adapter to the spindle threads and one from the chuck to the adapter (my chuck has neither, though).
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Bert Delisle WR Addict Offline Posts: 1,424 Calgary Alberta Canada Gender: Vicmarc 300	Re: lock chuck onto spindle Reply #3 - Dec 23^rd, 2015 at 9:59am One could consider using the tail stock, for the lathes that do not have a Chuck locking option. Put a wood push block threaded on or fitted tothe live center.
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Re: lock chuck onto spindle
Reply #4 - Dec 23^rd, 2015 at 8:04pm

Robert...Thanks to a more experienced turner here on this site, I found out how to lock down my chucks when turning in reverse since my lathe (Jet 1221VS...) does not have a 'flat' or 'groove' on the spindle to allow a set screw to clamp down the chuck without damaging the spindle... His solution...drop a small round lead fishing sinker (split shot...) into the set screw hole prior to tightening the set screw down... The lead sinker/split shot will make contact and hold WITHOUT damaging the spindle!!! Great advice and it works super well!!! Regrettably, I can't remember who this 'miracle turner' was, but i certainly remember his simple and inexpensive solution!!!
Good Luck and Safe turning to you always!

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Frank Johnston WR Noob Offline WR Rocks! Posts: 11 Bremerton Washington USA Gender: Jet 1014I (Modified to 1219I) :)	Re: lock chuck onto spindle Reply #5 - Dec 25^th, 2015 at 3:30pm There are set screws available with either nylon or brass tips. The softer tip is specifically designed as to not damage the set screws mating surface.
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JimQuarles WR Addict WR Patron Offline WR Rocks, BIG Time! Posts: 13,194 Glendale, AZ Arizona USA Gender:	Re: lock chuck onto spindle Reply #6 - Dec 25^th, 2015 at 5:20pm Unless it is a rotating tip, It won't work on a threaded shaft. The threads will grind it off as it tightens.
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Frank Johnston WR Noob Offline WR Rocks! Posts: 11 Bremerton Washington USA Gender: Jet 1014I (Modified to 1219I) :)	Re: lock chuck onto spindle Reply #7 - Dec 25^th, 2015 at 5:46pm JimQuarles wrote on Dec 25^th, 2015 at 5:20pm: Unless it is a rotating tip, It won't work on a threaded shaft. The threads will grind it off as it tightens. Ah..yes! Didn't think of that.
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Jerry Marcantel Senior Member Offline WR Rocks! Posts: 319 Tucson, Arizona Arizona USA	Re: lock chuck onto spindle Reply #8 - Dec 25^th, 2015 at 6:13pm Hows this for a solution. Screw the chuck on until it's tight. Screw the set screw in until it hits the spindle threads, back the set screw out, unscrew the chuck, get a file, and file a flat where the set screw left marks on the spindle. You're not going to weaken the spindle........... Jerry (in Tucson)
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Bill Schoppert Senior Member Offline WR Rocks! Posts: 490 Issaquah, WA Washington USA Gender:	Re: lock chuck onto spindle Reply #9 - Dec 28^th, 2015 at 4:16pm I'm sure now that I'm saying this it will happen but I have never used a set screw and I use the reverse all the time when sanding. The chuck locks on pretty tight that I have to use a wrench to get it off. Just a pop and it's off.
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Re: lock chuck onto spindle
Reply #10 - Jan 3^rd, 2016 at 8:42am

I agree with Bill Schoppert. I used the set screw regularly when I first started turning, and YES, I am one of those who forgot it was on and couldn't figure out why my chuck wouldn't unscrew, ugh. Started leaving it out when doing normal turning. I reverse the rotation a dozen times or so per piece whenever I complete my sanding process and have never had one un-spin on me. Now the only time I will use the set screw is on those rare occasions when I turn in reverse...when I need to approach the piece from an awkward angle, etc.

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Ron Carrabotta Senior Member Offline WR Rocks! Posts: 450 Dawsonville, ga Georgia USA Gender: Jet 1014 VS Jet 1642 -2EVS Lindow -White Rose Engine	Re: lock chuck onto spindle Reply #11 - Jan 3^rd, 2016 at 10:39am I seldom use the set screw option on my faceplates or chucks, even when sanding in reverse. The one exception is when I use my Easy Wood Chuck, I ALWAYS use the set screws on that chuck, the threads are so precise, the first time I used it without the set screws, it spun of when I turned the lathe off!
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Guy Bratt WR Addict Offline WR Rocks! Posts: 940 Richmond Michigan USA Gender: Robust American Beauty Rikon 70-100	Re: lock chuck onto spindle Reply #12 - Jan 3^rd, 2016 at 9:25pm Ron I've had that happen. It's kind of exciting isn't it ?
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