My Stock Duplicator

[wachtel]

I would like to share my stock duplicating machine which I built. This was a long term project of several years. It is actually my third duplicating machine. I re-built the first two. I made a thumbhole stock for my HK 630 with the second one. The second one rotated the original stock and one being made by three sprockets and a #20 chain. It worked, but it had backlash in it, if the pieces were rotated backwards. In this version I replaced the sprockets and chain with five 2.5" 60 tooth robot gears, staggered to make 9" center to center. It is mostly made with .5" and .375" aluminum plate purchased from a salvage yard for $1.00 per pound and linear rails and bearings. The caridage has a brake system which is released with the squease of the grip handle. It is setup on a two foot wide by six foot long table and it is heavy. I recently finished it and have made several more rifle stocks with it. Please pay no attention to the clutter of tools on the table as these are old photos.

 

[wachtel]

Here are some stocks that I made with the duplicator. HK 770, HK 630, RAR, HK 770 and Marlin 27s.

 

[Just for fun]

The stocks look great, good job man!

 

[OTmachine]

Nice build on the carver! Stocks look Great! Thanks for posting! I have a Terrco that I am adding a a depth stop top to enable generating the profile in .050 increments ( 20 TPI). Only have to deal with 2 axis at a time that way.

 

[silverhawk]

That is a fantastic duplicator. Moving from the chains/sprockets to the gears probably took out any remaining backlash.

Great machine, and great results!

Sent from my SM-T500 using Tapatalk

 

[FOMOGO]

Impressive machine. Mike