SPOOK331945
Sharpshooter
Ok been slacking the past couple weeks. I finally got all the rivets holes drilled except for the 4 holes for bolt latch bracket on the RHSP. Not too much left to do now. I need to countersink the holes still, ordered a cutter for that. Still need to cut the small slot on the side plates for the link stripper as I discussed earlier in the thread. Also I need to put the 60 degree relief in the 2 square holes in the RHSP. the holes have a t-bolt that goes in them with an angle cut on it. The angle will have to be cut so that the bolts seat properly to the side plate. These bolts retain the retracting slide group.
When I drilled the holes in the side plates. I had it all assembled, ensuring the backplate/spade moved freely for easy field stripping. Also making sure the top cover did not bind. essentially making sure everything was square. With it all assembled I went around will a transfer punch in all the holes before drilling. The trunnion holes will have to be marked with the transfer punch and drilled one side at a time. I used the top cover holes as a dowel hole and c-clamped everything together. Once those were done I bolted the trunnion and side plates together and put the top, bottom and back plates back on. Those holes could be located from the outside. Everything that had a preexisting hole was used as a jig when drilling to keep the drill bit on location. As long as you take your time and don't force anything allowing the drill bit to cut, it will follow the hole.
The 1/4" holes for the top cover pin were already drilled in the side plates. These holes are what I used to locate everything. I used drill blanks as my dowels. I didn't have any dowels long enough for the situation so I substituted the drill blanks Normally I've seen people use the pintle pin hole on the trunnion for locating everything. With having new side plates that hole has not been drilled/reamed to size. Currently they are 1/2", they will need to be 9/16". The top cover pin holes that I was talking about earlier was already drilled to size. With them to size I couldn't dictate their location anymore. If I was to try and finish the pintle holes to 9/16" first and use them to locate everything, the top cover holes could be off slightly and would call for an unsightly oval shaped hole. Because of this, this is why I used them as the master/ "0" location. Once I have a couple rivets in one of the side plates I will open up the pintle pin hole to 9/16" on one side then reassemble and continue on. The trunnion itself is already drilled to size so I will be using it as a jig, this is why I will be doing this one side at a time. Again as long as you go slow and don't force anything the drill bit will follow.
Yes I have a drill press in my kitchen.. Definitely not the best setup, I"ll be honest I was being lazy. Its just popping holes anyways. Probably could do it with a hand drill if you really wanted to but wasn't gonna be that lazy hahaha
When I drilled the holes in the side plates. I had it all assembled, ensuring the backplate/spade moved freely for easy field stripping. Also making sure the top cover did not bind. essentially making sure everything was square. With it all assembled I went around will a transfer punch in all the holes before drilling. The trunnion holes will have to be marked with the transfer punch and drilled one side at a time. I used the top cover holes as a dowel hole and c-clamped everything together. Once those were done I bolted the trunnion and side plates together and put the top, bottom and back plates back on. Those holes could be located from the outside. Everything that had a preexisting hole was used as a jig when drilling to keep the drill bit on location. As long as you take your time and don't force anything allowing the drill bit to cut, it will follow the hole.
The 1/4" holes for the top cover pin were already drilled in the side plates. These holes are what I used to locate everything. I used drill blanks as my dowels. I didn't have any dowels long enough for the situation so I substituted the drill blanks Normally I've seen people use the pintle pin hole on the trunnion for locating everything. With having new side plates that hole has not been drilled/reamed to size. Currently they are 1/2", they will need to be 9/16". The top cover pin holes that I was talking about earlier was already drilled to size. With them to size I couldn't dictate their location anymore. If I was to try and finish the pintle holes to 9/16" first and use them to locate everything, the top cover holes could be off slightly and would call for an unsightly oval shaped hole. Because of this, this is why I used them as the master/ "0" location. Once I have a couple rivets in one of the side plates I will open up the pintle pin hole to 9/16" on one side then reassemble and continue on. The trunnion itself is already drilled to size so I will be using it as a jig, this is why I will be doing this one side at a time. Again as long as you go slow and don't force anything the drill bit will follow.
Yes I have a drill press in my kitchen.. Definitely not the best setup, I"ll be honest I was being lazy. Its just popping holes anyways. Probably could do it with a hand drill if you really wanted to but wasn't gonna be that lazy hahaha
Last edited:
