- Joined
- Jan 16, 2016
- Messages
- 302
One of the best mods i did to my pm-833t was to add a positive quill stop .
The factory item is totally inadequate and moves every time you tap it .
What i came up with was way overbuilt and visually in the way .
The new version is greatly streamlined.
I managed to score a Mitutoyo quill kit for a Bridgeport and have
spent a year thinking about the best way to install it on the pm mill .
These things are in the way all over the place on a Bridgeport .
So i wanted to keep it more ergonomic than the typical installation .
They also move with the quill all the time even when not in use .
So here is what i came up with .
My stop collar is a two piece design & works like a clamp on the quill .
It is secured by two 1/2-20 bolts on the back & holds the quill stop rod quite solidly .
There is a "shelf" attached to the front of the mill for the intelligent nut to bump against .
On the new version i added a slot for the quill readout scale to go through .
The read head is mounted to a plate that is attached to the front plate on the mill .
This plate covers the original now unused quill stop hole & scale .
None of this obstructs the serial # & manufacture date on the mill
i made a small brass clamp for the end of the scale that holds a magnet .
This magnet can be stuck to a steel block that mounts on the moving collar
so the scale rides up and down with the quill .
It also can be lifted and stuck to the bottom of the shelf when the quill readout is not in use !
I am so happy with the way this turned out that i wanted to share .
The factory item is totally inadequate and moves every time you tap it .
What i came up with was way overbuilt and visually in the way .
The new version is greatly streamlined.
I managed to score a Mitutoyo quill kit for a Bridgeport and have
spent a year thinking about the best way to install it on the pm mill .
These things are in the way all over the place on a Bridgeport .
So i wanted to keep it more ergonomic than the typical installation .
They also move with the quill all the time even when not in use .
So here is what i came up with .
My stop collar is a two piece design & works like a clamp on the quill .
It is secured by two 1/2-20 bolts on the back & holds the quill stop rod quite solidly .
There is a "shelf" attached to the front of the mill for the intelligent nut to bump against .
On the new version i added a slot for the quill readout scale to go through .
The read head is mounted to a plate that is attached to the front plate on the mill .
This plate covers the original now unused quill stop hole & scale .
None of this obstructs the serial # & manufacture date on the mill
i made a small brass clamp for the end of the scale that holds a magnet .
This magnet can be stuck to a steel block that mounts on the moving collar
so the scale rides up and down with the quill .
It also can be lifted and stuck to the bottom of the shelf when the quill readout is not in use !
I am so happy with the way this turned out that i wanted to share .
