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[4]

Finally turning some metal!

January Project of the Month [3]
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guitarman0023

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Dec 14, 2017
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#1
Finally got my QCTP setup on my craftsman/atlas 12x36, never using the lantern post again! I built a bushing for my wedding ring to make it fit again out of stainless steel, and then replaced the big ugly red knob on my bostar QCTP, and then turned up a square out of some aluminum scrap I had laying around. I still need a decent amount of tooling, but I've been able to practice operations and I wanted to share

ring bushing.jpg QCTP handle.jpg cube.jpg
 

Nelson

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#2
Congrats on getting on track!
 

wa5cab

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#4
guitarman,

Nice looking work. But one comment on how you have the QCTP and compound set. With the compound, it's personal preference unless you are cutting threads. But I usually set the compound around to 30 degrees. That way, you can advance the cutter when turning without having to unlock the cross feed lock and when facing without having to unlock the carriage lock, which should always be set while facing, grooving or parting off.

The QCTP, however, should always be set square to the spindle axis, normally with one mounting face facing the work and the other on the left (headstock) side of the TP. The only time that it would be set otherwise would be rotated clockwise 90 degrees if you need to work up close to the tailstock. With it set rotated a few degrees clockwise as it appears to be in your photograph, (a) the horizontal angles won't be what the cutter or the insert was ground for and (b) you can't safely work right up next to the chuck jaws. The quick and dirty way to align it is to slightly loosen the nut on the hold down stud so that you can rotate the TP but it won't slide around. Chuck up any piece of solid round that you have handy. Remove whatever cutter holder you have mounted, leaving the lever on the TP in the loosen position if you have a piston type TP or the tightened position with a wedge type.. Then, with the cross slide, run the TP out against the round bar. which should square it up. While the TP is pressed up against the round bar, re-tighten the hold-down nut.
 

westsailpat

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#6
QCTP is the only way to go . When I first got my machine I wanted vintage . That was a mistake .
 

guitarman0023

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Dec 14, 2017
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#7
Yeah my lathe didn't even come with the lantern post, it came with a homemade one that had zero rigidity. For a long time, I thought the lathe was junk, until I figured out the homemade tool post had a bad crack in it I didn't see. Very happy with the QCTP
 

jdedmon91

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Dec 29, 2017
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#8
guitarman,

Nice looking work. But one comment on how you have the QCTP and compound set. With the compound, it's personal preference unless you are cutting threads. But I usually set the compound around to 30 degrees. That way, you can advance the cutter when turning without having to unlock the cross feed lock and when facing without having to unlock the carriage lock, which should always be set while facing, grooving or parting off.

The QCTP, however, should always be set square to the spindle axis, normally with one mounting face facing the work and the other on the left (headstock) side of the TP. The only time that it would be set otherwise would be rotated clockwise 90 degrees if you need to work up close to the tailstock. With it set rotated a few degrees clockwise as it appears to be in your photograph, (a) the horizontal angles won't be what the cutter or the insert was ground for and (b) you can't safely work right up next to the chuck jaws. The quick and dirty way to align it is to slightly loosen the nut on the hold down stud so that you can rotate the TP but it won't slide around. Chuck up any piece of solid round that you have handy. Remove whatever cutter holder you have mounted, leaving the lever on the TP in the loosen position if you have a piston type TP or the tightened position with a wedge type.. Then, with the cross slide, run the TP out against the round bar. which should square it up. While the TP is pressed up against the round bar, re-tighten the hold-down nut.
I agree in fact that’s the way I run mine. In fact the tooling I use is modified to fit the dovetail



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jdedmon91

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Joined
Dec 29, 2017
Messages
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343
#9
Finally got my QCTP setup on my craftsman/atlas 12x36, never using the lantern post again! I built a bushing for my wedding ring to make it fit again out of stainless steel, and then replaced the big ugly red knob on my bostar QCTP, and then turned up a square out of some aluminum scrap I had laying around. I still need a decent amount of tooling, but I've been able to practice operations and I wanted to share

View attachment 266612 View attachment 266613 View attachment 266614
Love the QC handle


Sent from my iPhone using Tapatalk
 
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