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Hole placement


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#1 bruski

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Posted 28 February 2012 - 05:29 AM

HI, When it comes to drilling the 3 holes on a .437 B.C. for the cocking knob in the Breech Back Plate, How can I mark or drill them 120`apart? The knob doesn't have through holes to transfer them. Did you guys make a jig at the same time as drilling your knob for those holes?
Thanks,
bruski

 

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#2 my65pan

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Posted 29 February 2012 - 12:06 AM

I picked up the center hole and trigged out the bolt pattern for 120 degrees on a .437 bolt circle.

X.2184 Y.0
X.1094 Y-.1892
X.1094 Y.1892

Hope this helps.

#3 bruski

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Posted 29 February 2012 - 02:10 AM

Thanks for the help. I managed to get it done ok.
bruski




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