Phase 2 QCTP adjustments/modifications

[Ski]

I think this Phase 2 bxa is not that bad except for 1 thing. The tool lock arm ends up in a crappy over the bed position and interfiers with the back tool position. I understand I can remove it but I am curious if someone figured out a way to reposition it short of redrill and tap? I can rotate it 180 degrees but then it interfiers with the side position. I discovered they use yarn for a seal under the top piece which I replaced with a piece of felt left over from my lathe kit. I also stoned sharp edges off as well. any pointers? Ski

 

[darkzero]

Is it a wedge or piston type?

I have a Dorian SQCTP & it has a feature where you can clock the handle every 15°. I don't think the Aloris & clones have this feature but I believe I heard there is a way to adjust it if you disassemble it. IIRC, the thread has 2-3 starting positions.

 

[Ski]

Is it a wedge or piston type?

I have a Dorian SQCTP & it has a feature where you can clock the handle every 15°. I don't think the Aloris & clones have this feature but I believe I heard there is a way to adjust it if you disassemble it. IIRC, the thread has 2-3 starting positions.

Wedge type.

 

[blaser.306]

I think this Phase 2 bxa is not that bad except for 1 thing. The tool lock arm ends up in a crappy over the bed position and interfiers with the back tool position. I understand I can remove it but I am curious if someone figured out a way to reposition it short of redrill and tap? I can rotate it 180 degrees but then it interfiers with the side position. I discovered they use yarn for a seal under the top piece which I replaced with a piece of felt left over from my lathe kit. I also stoned sharp edges off as well. any pointers? Ski

If your handle parks over the bed when tight ( more or less 180 degrees out ) loosen everything off and slide the nut out of the cross slide along with the QCTP , rotate it 180 and re install it. Or make a shim washer ( For under the top locking nut ) to adjust where the handle indexes to when in the locked position.

 

[Ski]

If your handle parks over the bed when tight ( more or less 180 degrees out ) loosen everything off and slide the nut out of the cross slide along with the QCTP , rotate it 180 and re install it. Or make a shim washer ( For under the top locking nut ) to adjust where the handle indexes to when in the locked position.

180 degrees gets into the left tool position.

 

[hman]

I've solved the problem by spotfacing, drilling and tapping three additional handle positions at 90 degree intervals.

I start out by removing the "threaded body" from the QCTP and the ball from the handle, holding the handle with a chuck in the mill (to establish the angle), holding the threaded body (by its ends) in a tiltable (drill press) vise, and locking the angle stops. The large radius of the threaded body's flange should center between the rails of the vise, to establish a reference for rotation. Attach the vise to the mill table. [NOTE - Photos show a piston-type QCTP, but they'd be the same for the wedge-type]



Loosen the handle from the chuck and use it to rotate the threaded body by 90 degrees I use an angle cube on the handle - no need for super precision, but I do try to be as accurate as possible.



Then use a suitable center cutting end mill to form a spotface on the curved surface of the flange. Finally, drill & tap thru with the correct thread pattern for the handle. Rinse and repeat.

 

[stevet]

I find the easiest way to do this is to position the handle where you want it, measure the space under the handle mount with a feeler gauge, then make a washer from any available type of plastic. 15 minute job it you have the plastic stock around.

Steve T

 

[Ski]

Thanks for pointing me in the right direction guys.

 

[calstar]

I find the easiest way to do this is to position the handle where you want it, measure the space under the handle mount with a feeler gauge, then make a washer from any available type of plastic. 15 minute job it you have the plastic stock around.

Steve T

Simple is good!

Brian

 

[Ianagos]

The easy way is to remove the entire post then unscrew the handle until the tapered gibs fall out the keep trying in different positions. It's a multi start screw barrel so different arrangements are to be found. Mine also came clocked wrong and I did this procedure and got it exactly right and the I returned the toolpost because it was garbage and bought a dorian.