Just a few things that I've picked up along the way.
A short piece of 1-1/2" painters tape is just the right size to protect the lower while performing the machining operations.
A 1/4" clevis pin not only works well to secure the front of the jig, it also makes a handy tool for installing the pivot pin detent and spring when the time comes.
It is very important to keep the chips cleared out while machining. Unfortunately I was born with only two hands (both of which are kept firmly around the router) so I came up with this handy, dandy vac attachment out of a piece of 1" copper pipe and some 1" hose from Lowes.
Just be sure to keep it way away from the machining area. I secured mine with a copper pipe hanger
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While on the subject of drilling, I have a certain order that I like to use. Imagine the holes in the drill guide numbered 1-9 top to bottom.
I like to start out with Hole number #4 which is the only "A" hole. Then I drill #8 which if using a gen ll receiver will be the only "B" depth hole.
Then set your drill to "C" depth and drill the rest of the holes in this order #1, #3, #2, #5, #7, #6. You will not be drilling #9 if you have a gen ll lower. By doing them in this order you will keep any tension equal on both sides of holes #2 & #5. I feel that it is worth consideration because those two holes are extremely close to their neighbors.
A short piece of 1-1/2" painters tape is just the right size to protect the lower while performing the machining operations.
A 1/4" clevis pin not only works well to secure the front of the jig, it also makes a handy tool for installing the pivot pin detent and spring when the time comes.
It is very important to keep the chips cleared out while machining. Unfortunately I was born with only two hands (both of which are kept firmly around the router) so I came up with this handy, dandy vac attachment out of a piece of 1" copper pipe and some 1" hose from Lowes.
Just be sure to keep it way away from the machining area. I secured mine with a copper pipe hanger
- - - Updated - - -
While on the subject of drilling, I have a certain order that I like to use. Imagine the holes in the drill guide numbered 1-9 top to bottom.
I like to start out with Hole number #4 which is the only "A" hole. Then I drill #8 which if using a gen ll receiver will be the only "B" depth hole.
Then set your drill to "C" depth and drill the rest of the holes in this order #1, #3, #2, #5, #7, #6. You will not be drilling #9 if you have a gen ll lower. By doing them in this order you will keep any tension equal on both sides of holes #2 & #5. I feel that it is worth consideration because those two holes are extremely close to their neighbors.
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