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Post by freelancer on Oct 23, 2010 21:24:18 GMT -5
I decided I wanted something a little different for my WWII impression and the Caw 1928 kit was no longer available so I took a CYMA M1A1 Thompson and converted it to a 1928A1 Military version. This was my 1st attempt at a custom gun and I am very pleased with the way it turned out. I may post a pictorial how to on how I did the conversion at a later date since I took pictures during the building process. I would also like to thank hairy apple for posting up his 1928 conversion which inspired me to do mine. Here is what I started with(this is a picture of a real M1A1 since I forgot to take before pics)  This is what I wanted it to look like  here is the results (still needs the Cutts Compensator that I had a friend make installed once I receive it from him)         |
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Cpl. Hicks
Sergeant
Unofficial Flaggrantly Wrong Weapons Policeman
Posts: 1,425
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Post by Cpl. Hicks on Oct 23, 2010 21:32:20 GMT -5
You might want to put a warning in the topic title, these pictures might crash some low end computers...
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Post by freelancer on Oct 23, 2010 21:56:27 GMT -5
You might want to put a warning in the topic title, these pictures might crash some low end computers... I figured out fow to get them smaller |
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Post by hairy apple on Oct 23, 2010 22:07:26 GMT -5
VERY NICE! Looks great man.
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Post by freelancer on Oct 23, 2010 22:25:31 GMT -5
Thanks, It took longer then I expected to get it finished but taking the extra time was well worth it. considering I had to scratch build the rear sight and the piece above the mag well on the left side, and getting the angle right on the left side above the mag well was tricky as well
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2nd Bat
Master sergeant 
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Post by 2nd Bat on Oct 23, 2010 22:44:21 GMT -5
Great job. Thanks for sharing.
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Post by freelancer on Oct 24, 2010 10:51:21 GMT -5
Thanks 2nd Bat. It was a fun project to do (even with the few problems I ran into)
I'll post some pics of it with the compensator on once I receive the compensator from the friend of mine that made it for me.
I might make a few more using both M1A1's and the CYMA 1928 since I still have all the stock I need to make a few more.
I still need to convert some mags to the 20rnd length but will do that this winter
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Post by freelancer on Oct 30, 2010 22:51:17 GMT -5
some pics with the Cutts Compensator added   |
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Post by KillJoy on Nov 30, 2010 21:09:10 GMT -5
Would you make these to sell? I mean the parts, because they look amazing. Great work freelancer!
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Post by cole97 on Dec 2, 2010 23:41:34 GMT -5
nice job freelancer. you truly have a custom made and very unique gun. how did you get that angle on the left side of the front receiver? filling in the bolt cut out on the side?? amazing. good work!
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Post by no1sonuk on Dec 17, 2010 11:48:18 GMT -5
Nice. I'd like to see how you reworked the receiver. Also, did your friend copy the Cyma 1928's Cutts? If so, the length is about right, but the diameter is too small. I ask because it looks a bit narrow in your pic. The narrow part should be 1.03 inch dia. The wider part, 1.1875 (1 3/16) inch dia. I've attached an image of one of the ones I've made for fitting to Cyma and TM M1A1s. Attachments:
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Sgt_Tom
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Post by Sgt_Tom on Dec 17, 2010 13:51:17 GMT -5
Not sure how this thread slipped past my viewing. Looks amazing! I am building one too from scratch. Is the receiver made by gluing metal plates to the side you did you have it milled or something? Nice job.
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Post by freelancer on Dec 20, 2010 16:44:29 GMT -5
Sorry took so long to get back with you guys.
1st off to answer you're question no1sonuk yes the Cutts is copied from the CYMA one. we couldn't find specs of the real one. but it works fine.
2nd to answer you're question sgttom, first the only thing that I had done outside was the compensator, all the body work was done using basic hand tools( grinder, dremel. files) and getting all the dimensions from blueprints of the 1928. And yes It is built by adding new sides to the original body as I have no access to a milling machine.
Lastly I am currently working on another Thompson conversion right now that will be even more correct then the last one and will be putting up a how too when I am done (waiting for a new switch for my dremel)
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Sgt_Tom
Technical Sgt.
Combat!
Posts: 3,580
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Post by Sgt_Tom on Dec 22, 2010 21:34:11 GMT -5
Sounds awesome. Did you also do the Cutts compensator with a grinder, dremel and files too? Its looks fantastic. I am doing the same thing with the receiver too. I am also planning on trying to modify the plastic stock to look more 1928'ish.
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Post by freelancer on Dec 23, 2010 10:22:08 GMT -5
A friend of mine made the Cutts for me on his lathe.
On the one I'm working on now I'm correcting the rear of the receiver to look correct.
I'll start posting pics once I have that done and post pics as I get things done. just got my new switch in for my dremel so I can get back to work on it. ;D should have some pics up before Monday.
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Post by freelancer on Jan 2, 2011 14:45:28 GMT -5
With all the trouble I have had working on trying to correct the rear of the reciever of the Thompson to make it correct for a 1928 I would not recomend any but the most talented converters even try it. I have still to finish the rear of the but is now about 70% done I will post pics of it once I have that part done, but will still have the rest of the conversion yet to do.
On a side note, I could have produced 2 1928A1 conversions like pictured in my original post in the time it has taken me to get this far on the rear of the reciever
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Sgt_Tom
Technical Sgt.
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Posts: 3,580
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Post by Sgt_Tom on Jan 2, 2011 15:23:21 GMT -5
Yea I will probably skip it on mine.
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Post by freelancer on Jan 2, 2011 15:28:04 GMT -5
Unless you have either plenty of patience or a milling machine I would suggest skipping that part as well.
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Post by freelancer on Jan 19, 2011 18:08:15 GMT -5
After getting side tracked on 2 other projects and having to work some overtime at work latley I have gotten back to the 1928A1 conversion. I will get some of the pics posted as soon as I can get them downloaded from my camera. along with a how to write up.
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Post by freelancer on Jan 20, 2011 17:39:45 GMT -5
To start out with these are the tools I used for the Thompson conversions.  From left to right top to bottom Jig Saw Grinder Hack Saw C-Clamp Drill Drill Bits Square Assorted Files Clamps Calipers Dremel and Accessories Tape Measure |
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Post by freelancer on Jan 21, 2011 11:31:45 GMT -5
Here are the main materials used in the conversions  From left to right top to bottom 1/4" aluminum plate (used for the sides) 1/8" steel plate (used for the rear sight) 1mm aluminum plate (used for pieces on left side of receiver) the funny looking piece is actually part of the wiper arm system off of a Freightliner semi I used the ball pieces for the new cocking knobs J-B weld and J-b Quick 3/4"od x 9mm id aluminum tube ( used for barrel strengthener I will start posting the actual build process with pics either later today or tomorrow |
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Post by freelancer on Jan 22, 2011 15:49:29 GMT -5
The first thing I did was allot of research. I found technical drawings and blueprints and decided how I would do everything. the next thing was to measure for the new sides and cut the rough shape out of the 1/4" plate aluminum.  Once the sides were rough cut I then got then ground and filed down to fit the sides the way I wanted them to.   I then started on the final shaping, most of which was done with files. I also referred to the blueprints and drawing constantly to make sure everything was to the right dimensions |
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Post by freelancer on Jan 22, 2011 21:40:30 GMT -5
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Post by freelancer on Jan 23, 2011 15:54:36 GMT -5
Been working most of the day so far on finishing up the shaping on the new sides and the rear of the receiver for the second version of my Thompson conversions.
I will hopefully have the shaping done between today and tomorrow so I can take pics and post more on my how to.
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Sgt_Tom
Technical Sgt.
Combat!
Posts: 3,580
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Post by Sgt_Tom on Jan 23, 2011 19:42:19 GMT -5
Looks great, can't wait to see more pictures! What do you plan on doing for the ladder sight?
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Post by cole97 on Jan 23, 2011 20:03:44 GMT -5
Looks great, can't wait to see more pictures! What do you plan on doing for the ladder sight? +1. |
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Post by freelancer on Jan 23, 2011 20:21:38 GMT -5
Looks great, can't wait to see more pictures! What do you plan on doing for the ladder sight? I have some blueprints/ tech drawing of the ladder sight pieces and may try to fabricate one myself. If that doesnt work out I'll just end up buying a r/s one for it. |
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Post by Gordak on Jan 23, 2011 20:25:53 GMT -5
Amazing!, last I checked the correct stock is not that expensive.
-Gordak
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Post by freelancer on Jan 23, 2011 20:33:55 GMT -5
I have not decided yet if I want to buy a r/s stock or not or just make one.
I have blueprints/ tech drawings of most of the r/s parts for the 1928 so I can conceivably make almost any part I need for the conversions.
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HornetWSO
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Post by HornetWSO on Jan 23, 2011 22:25:42 GMT -5
Looks great so far! I have an old stock you can have if you pay the postage.
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