Building a Captive Rig
This captive rig system was built for me by a turning buddy. Those with metal working capability may find it of interest.
The rig fits any standard 3/4" boring bar and works well with my Don Pencil Stinger/Scorpion hollowing system. Total material costs for the D-handle, laser, laser arm, and a (spare) boring bar was under $80.
Note that the backrest was manufactured by Monster Lathe Tools.
The rig in its natural habitat.
The setup itself.
The D-handle dimensions:
Outer bar (1) - 17"L x 3/4"W
Inner (boring) bar (1) - 18"L x 3/4"W
Boring bar socket (1) - 2-1/4"L x 1-1/16"W (bored to 3/4")
Cross bars (2) - 6" x 3/4"
The boring bar socket (front-end of D-handle).
The butt end of the D-handle
The laser
Riser bar: 9"L x 1/2"W, threaded. (Shown above attached to boring bar socket)
Laser arm bar: 24"L x 3/8"W (square bar)
The laser battery pack (purchased from Radio Shack)
The business end of the laser
Looking down the barrel
Laser on
The laser attachment
