Solid Tool Post Mount

[MSD0]

Decided to replace the compound slide on my PM1127 with a solid tool post mount for an Aloris AXA QCTP. Has virtually eliminated chatter (especially when parting off) and has allowed me to set tool offsets for each tool. I’m planning on using miteebite fixture clamps or something similar to prevent the tool post from rotating View attachment 260150View attachment 260153

 

[Nogoingback]

Nice job on the mount. I made something similar for my lathe recently and the improvement in rigidity was well worth the effort.

 

[MSD0]

Nice job on the mount. I made something similar for my lathe recently and the improvement in rigidity was worth the effort.

Thanks

 

[MSD0]

Nice job on the mount. I made something similar for my lathe recently and the improvement in rigidity was worth the effort.

Thanks, yeah it’s a big improvement on smaller machines like the 1127.
Edit- I still need to try knurling to see how that goes. With the compound, there was a lot of deflection.

 

[Uglydog]

One of the guru machinist (no sarcasm intended) videos recently showed similar.
So that I understand, please confirm that the miteebite fixture clamps will thread into the two threaded holes on the top of the riser.
I'm excited that you are getting better cuts.

Daryl
MN

 

[ttabbal]

Was the thickness chosen for a specific reason? I'm sure thicker is better to a point, I'm just not sure what that point would be.

 

[MSD0]

One of the guru machinist (no sarcasm intended) videos recently showed similar.
So that I understand, please confirm that the miteebite fixture clamps will thread into the two threaded holes on the top of the riser.
I'm excited that you are getting better cuts.

Daryl
MN

I still need to order the fixture clamps, but I used the offset specified by the manufacturer. If for some reason that doesn’t work, I can always machine a flat on the opposite side of the clamp.

 

[MSD0]

Was the thickness chosen for a specific reason? I'm sure thicker is better to a point, I'm just not sure what that point would be.

The thickness is basically equal to the distance from the cross slide to the top of the compound.

 

[T Bredehoft]

I'm pleased to see the T slots in the cross slide, the manufacture recognizes that we like to make our own tooling blocks.

 

[middle.road]

Thanks, yeah it’s a big improvement on smaller machines like the 1127.
Edit- I still need to try knurling to see how that goes. With the compound, there was a lot of deflection.

Use a clamp type knurler. Much better and easier than a 'bumper'.

- EDIT -
RobRenz' video -=- LINK -=-

Need to think about doing this on mine. Since I need to redo the T-Nuts, maybe do up (4) pcs to hold down the block.