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Bullet Guide Installation - Question About Lining-Up the Rifle on a D


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#1 Medved11

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Posted 13 September 2015 - 08:03 PM

I'm getting myself set up to install the bullet guide in my 5.45 conversion as soon as the part arrives from Dinzag Arms. I don't trust myself to be able to drill a straight hole by hand in this case, so I want to use a drill press. 

 

While I'm waiting, I tried this afternoon to figure out how to best orient the gun on my drill press so that I can get to work as soon as the parts show up; however, I'm having trouble getting the trunnion and drill bit to line up as the mag catch is getting hung up on the side of the press table (I've got the gun in a drill press vice with a pair of soft jaws attached).

 

I'm sure that I'm missing something obvious but is there something that I should be doing to make work better (maybe a block of wood underneath the vice to add a bit more clearance)?

 

Any advice would be appreciated.


Edited by Medved11, 13 September 2015 - 08:03 PM.


#2 SuRrEaLNJ

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Posted 14 September 2015 - 07:25 AM

The biggest piece of advice I received when doing mine was to bag the drill press and do it by hand. Go slow and use lube but it's fine to do it by hand.
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#3 Sim_Player

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Posted 14 September 2015 - 09:52 AM

Yup. Did two with a cordless drill.

Drill a smaller hole first and then step it up to your final size and tap threads.

Go slow, lube, and clear metal chips. It takes about 15 min.
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#4 Medved11

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Posted 16 September 2015 - 06:03 AM

Can you guys give me an idea as to how you secured the receiver to drill the hole by hand? 

 

I'm probably over-thinking/complicating this whole thing - However, I think that the thing that is "scaring" me  off from doing it by hand is making sure that the gun is level and secure when I drill. 



#5 SuRrEaLNJ

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Posted 16 September 2015 - 08:52 AM

I sat it on a scrap piece of 2x4 on my work bench.

There's a bunch of tutorials on YouTube you can watch

Around the 11 minute mark on this one

Edited by SuRrEaLNJ, 16 September 2015 - 08:55 AM.


#6 Medved11

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Posted 16 September 2015 - 07:25 PM

I'm guessing that using a drill for the tapping is not recommended.

When lining up the guide in the trunnion it just needs to be centered and to the left of the bottom lip of the barrel, correct (to make sure that it doesn't interfere with the travel of the bolt)?

#7 SuRrEaLNJ

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Posted 16 September 2015 - 09:22 PM

No tap by hand. Flat trunion or round. Mine was flat and installed centered left to right and pushed all the way to the front. Someone who's done a few of these things could probably chime in there

#8 G O B

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Posted 17 September 2015 - 03:43 PM

YOU CAN TAP WITH THE DRILL PRESS, DO NOT CHANGE THE SET UP, but TAKE THE BELT off OF THE PULLIES. tHEN

DISABLE THE RETURN SPRING. Now turn the pully by hand.


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#9 Sim_Player

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Posted 20 September 2015 - 03:35 PM

Your gonna wanna tap by hand. A $10 tap wrench is best.

Watch a few videos to see how it's done.

Oil tap, turn a couple threads, back out, clear chips, repeat, go slow, keep it straight.

When you feel resistance back it out (cutting just a little deeper everytime).

Again, watch a video, first!

Edited by Sim_Player, 20 September 2015 - 03:36 PM.





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