Drilling Jig

TheGimp · 9th February 2010, 03:09 AM

I didn't see any one making anything like this so I thought I'd post it.

I wanted a jig to drill the center hole for a GreenLee punch, and the two screw holes for a tube socket in a 2" square piece of 1/2" Al plate . In addition I figured I could add some positions for heat vent holes, and use a steel bushing as a drill guide ala B-Square with their rifle drilling jigs.

The first two are B7G and B9A. I made two B7Gs and only had six vent holes as I wanted to stay with at least 1/4dia holes and I'd have to move them out to make them bigger.

The B9A vents are offset because I screwed up moving the piece from the vice to the rotary table, so I'll have to make another.

The small piece is the drill guide. I will make a couple more, then I'll will heat treat them.

TheGimp · 9th February 2010, 04:17 AM

Here is a test pattern.

TheGimp · 9th February 2010, 03:36 PM

Image was messed up.

Hopefully this is better.

9th February 2010, 03:09 AM	#1
TheGimp diyAudio Member Join Date: Aug 2009 Location: Johnson City, TN	Drilling Jig I didn't see any one making anything like this so I thought I'd post it. I wanted a jig to drill the center hole for a GreenLee punch, and the two screw holes for a tube socket in a 2" square piece of 1/2" Al plate . In addition I figured I could add some positions for heat vent holes, and use a steel bushing as a drill guide ala B-Square with their rifle drilling jigs. The first two are B7G and B9A. I made two B7Gs and only had six vent holes as I wanted to stay with at least 1/4dia holes and I'd have to move them out to make them bigger. The B9A vents are offset because I screwed up moving the piece from the vice to the rotary table, so I'll have to make another. The small piece is the drill guide. I will make a couple more, then I'll will heat treat them.

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9th February 2010, 04:17 AM	#2
TheGimp diyAudio Member Join Date: Aug 2009 Location: Johnson City, TN	Here is a test pattern.

9th February 2010, 03:36 PM	#3
TheGimp diyAudio Member Join Date: Aug 2009 Location: Johnson City, TN	Image was messed up. Hopefully this is better.

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