Prototyping 4" Machinist Clamp Kits

[Doug Gray]

Today in my little basement shop I began prototyping my newest kit. This kit will be for a pair of 4" machinist clamps.

The photo shows using my 3" and a 2" machinist clamp to hold the main plates of the 4" clamp for reaming. The two main plates have been CA glued together to ensure alignment and silky smooth operation of the clamp. The laser etched centre marks on the plates have been centre punched and a pin is used in the mill chuck to position the plates.

This latest kit will complete the Machinist Clamp Kit family with 2, 3 and 4" capacities. The 4" should be available around the new year.

 

[Doug Gray]

Continuing with the prototyping. The plates and spacer pins are complete. A quick mockup shows just how big these are going to be!

 

[Doug Gray]

Almost complete, just needs some further cleanup and handles. Interestingly the plates are for the 2, 3 and 4 inch versions are directly scaled for each other and they all work great. This photo shows the 4" capacity.

 

[Doug Gray]

Huge news!

The complete 4" (100mm) Machinists Clamp Kits are now in stock and ready to ship! Partial kit and drawings only versions available soon.

Pair 4" (100mm) Machinist Clamp Complete Kit

Pair 4" (100mm) Machinist Clamps Complete Kit Available in imperial (inch) or metric! The Machinist Clamp Kit family is now complete!. This is the massive 4" papa bear clamps featuring 10 gauge plates. Fantastic project for the lathe. Complete materials, hardware and drawings to create a...

d-gray-drafting-and-design.myshopify.com

 

[Doug Gray]

The "Papa" 4" completes the family, 2, 3 and 4" kits now available. It is really quite a massive unit . The screws are 1/2" diameter and the jaws are 1 1/8" square. The hinge, bearing and threaded pins are from 1" diameter stock.

 

[ErichKeane]

Nice! One day I might buy a full set, once my project list gets sane again.