Another "What Is It?" Bridgeport Accessory?

[skrewd]

Old thread but I need that other part. The pj-1 mounts to the other side. I have only seen front view images of it which hide or do not include a spring. Can anyone post images of it from other angles?

 

[skrewd]

Is the spring hidden behind?

 

[skrewd]

My best guess is the lower portion is adjustable and locking via a slit and bolt about 1.500 tall. The protruding guide rod is 8.000 long x 0.500 thick with a spring and a retaining clip at the top. This is in comparison to the m style.

 

[petertha]

That's cool. Dumb question but why the (what looks like) stabilizing arm off to the side? Would there be that much rotational play in a typical spindle or maybe allow the assembly to maintain the same lateral position like if you had to adjust it or remove it?

 

[skrewd]

My best guess from what I see is it has two functions. One an added spindle lock, to maintain z height thru an x and y plane. Two extra spindle upward return to prevent sag or droop with the added weight.

 

[Alcap]

It would interesting to hear and see things made with that tracer attachment . I've seen those for router for years but never manual one for a milling machine