Mandrel Handles

This topic has 8 replies, 4 voices, and was last updated 15 January 2011 at 11:38 by Nobby.

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12 January 2011 at 16:33 #62303
Nobby
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@nobby
I

Does anybody find these mandrel handels usefull ? . They are a great addition to any ones lathe . Mine is sprung Loaded for safety. Usefull when dieing down threads(not title threads) in use I always switch the m/c off . When cutting fine metric threads with M/C switched off i can lock the handle .i close half nut take a cut buy winding handle bring tool out leave half nut closed wind back take another cut . Feedback welcome

Regards Nobby
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12 January 2011 at 16:33 #21780
Nobby
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@nobby
12 January 2011 at 17:01 #62305
KWIL
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@kwil
With an Inverter drive, I reduce the speed to very slow and do the same but under power, with the S7 clutch I find I can judge the stop point very well. If you do not have an inverter, the handle is a good way of doing it, if a little tedious.
12 January 2011 at 17:12 #62308
macmarch
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@macmarch
Nobby, This is how I do my threading on spacers on my BH600. I only have 1 thread for the undercut and often 2 threads for the job. With female threads it would a braver man than I am. Even with inverter drive there is only 20 thou to play with. I can’t rely on the drive to stop in 1/2 a turn.

In my version the handle fits into slots around the circumference. Down the centre there is an adjustable rod which I can use as a backstop.

If anyone is interested I’ll put up pics in Hints and tips.

Ray
12 January 2011 at 17:12 #62309
macmarch
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@macmarch
Nobby, This is how I do my threading on spacers on my BH600. I only have 1 thread for the undercut and often 2 threads for the job. With female threads it would a braver man than I am. Even with inverter drive there is only 20 thou to play with. I can’t rely on the drive to stop in 1/2 a turn.

In my version the handle fits into slots around the circumference. Down the centre there is an adjustable rod which I can use as a backstop.

If anyone is interested I’ll put up pics in Hints and tips.

Ray
12 January 2011 at 17:13 #62310
macmarch
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@macmarch
Oops clicked to quick.
13 January 2011 at 10:57 #62366
Nobby
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@nobby
Hi Ray

Thank you for feedback on this item Look forward to pics in Hints and tips.

Regards Nobby
13 January 2011 at 11:35 #62373
wheeltapper
Participant
@wheeltapper
Hi Nobby

this is the handle I made for my Chester Comet.

my lowest speed is 100 rpm so short threads are a no no under power.

It’s an expanding mandrel type.

as you can see I have to open the gear cover to fit it so turning the power off is a must.

Roy

Edited By wheeltapper on 13/01/2011 11:36:30
15 January 2011 at 11:38 #62489
Nobby
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@nobby
Hi Wheeltaper

I like your lores table stop . Heres my adjustable stop on my S7 Mk 1can be stopped in 2 postitions using collars on 5/16″ stop bar .Note rule for seting
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