- Joined
- Feb 1, 2015
- Messages
- 9,516
The Grizzly G0602 has three radial holes in the spindle for the purpose of securing the spindle when installing or removing a chuck.According to the user manual, you are supposed to use the second chuck key as a tommy bar with those holes. Well the chuck key didn't fit but no problem, I made a tommy bar However, the holes were only about 5/16" deep so there was a great deal of force at the edge of the hole which was slowly distorting the hole.
A better solution was to use a spanner wrench as it locates the fulcrum on the opposite side of the spindle. Now, I could probably buy one; McMaster sells one which would fit for $42. But what the hey, I'm a machinist, right? Why buy when I can make?
To start, I repurposed a previously bent piece of 1/4" x 5/8" stainless, unknown alloy but 300 series. It was already bent into a "p" shape which saved a bunch of blacksmithing work. I needed a curve for 2.6"diameter while the original curve was about had a diameter of about 3.5" but a little tweaking with a persuader resulted in the right curvature. I used a 5/16" dowel pin for the pin welding it with 6011 rod.
The piece was too short so I needed an extension. I selected a piece of the same stock for the extension, While I could have joined the two pieces with a butt joint, I elected to use a cleft joint. The end of one piece is notched while the mating piece is pointed and the two are fit together and welded. This results in a stronger joint. I welded the joint, again using 6011 rod. The welds were cleaned up and the handle cut to length. A hole was added for hanging purposes. Some file work, sanding, and a length of heat shrink for my personal comfort and the wrench was complete.
A better solution was to use a spanner wrench as it locates the fulcrum on the opposite side of the spindle. Now, I could probably buy one; McMaster sells one which would fit for $42. But what the hey, I'm a machinist, right? Why buy when I can make?
To start, I repurposed a previously bent piece of 1/4" x 5/8" stainless, unknown alloy but 300 series. It was already bent into a "p" shape which saved a bunch of blacksmithing work. I needed a curve for 2.6"diameter while the original curve was about had a diameter of about 3.5" but a little tweaking with a persuader resulted in the right curvature. I used a 5/16" dowel pin for the pin welding it with 6011 rod.
The piece was too short so I needed an extension. I selected a piece of the same stock for the extension, While I could have joined the two pieces with a butt joint, I elected to use a cleft joint. The end of one piece is notched while the mating piece is pointed and the two are fit together and welded. This results in a stronger joint. I welded the joint, again using 6011 rod. The welds were cleaned up and the handle cut to length. A hole was added for hanging purposes. Some file work, sanding, and a length of heat shrink for my personal comfort and the wrench was complete.