Jax Malachor Posted April 17, 2016 Share Posted April 17, 2016 Given the relatively recent addition of the excellent reference photos provided by Machine's post (found here), I decided to draft a series of technical drawings of the Lewis gun and its various components to be used as printable to-scale plans for those wishing to begin a T-21 build. These were drawn with the most accurate measurements I could gather from the reference photos, done with as little estimating as possible. I did my best to provide dimensions where I felt they might be necessary, while other drawings are meant to be traced directly to their respective material. I will provide images of the sheets here for the purpose of review and hopefully as many suggestions and critiques as I can get to make the drawings as useful as possible. For those of you with drafting experience who would like to have the raw CAD file, feel free to PM me! And for those who feel the current drawings are at least worth a try, I have the 14-page PDF document ready upon request! I myself will begin my first T-21 build tomorrow using the current drawings, progress of which I will be sure to link to this thread. Thank you in advance to any and all help you excellent troopers can provide! Quote Link to comment Share on other sites More sharing options...
Lozzer86 Posted April 17, 2016 Share Posted April 17, 2016 This is great ! Excellent work, dude. Hopefully we can start to really increase the accuracy on T21's now Quote Link to comment Share on other sites More sharing options...
Jax Malachor Posted April 17, 2016 Author Share Posted April 17, 2016 All thanks to you, Machine, for your awesome documentation of that Lewis! I hope these drawings can do your work justice! Quote Link to comment Share on other sites More sharing options...
SID Posted April 17, 2016 Share Posted April 17, 2016 This is a great help for consisting. Quote Link to comment Share on other sites More sharing options...
Strider Posted April 17, 2016 Share Posted April 17, 2016 This is fantastic, bro. Maybe you could document your build in this thread so we could pin it later on. Cheers Quote Link to comment Share on other sites More sharing options...
Bulldog44 Posted April 17, 2016 Share Posted April 17, 2016 Outstanding! All this T-21 stuff is edging me on to have a go at building one. Thanks for doing this! Quote Link to comment Share on other sites More sharing options...
Jax Malachor Posted April 18, 2016 Author Share Posted April 18, 2016 Thank you guys for the great response so far! Per Strider's suggestion, I'll just update my build progress on this thread to see if all the work on those drawings will actually pay off! Right from the start, the PDF prints at the perfect scale, just like I'd hoped: I started by piecing together what cutouts needed it, then proceeded to trace them out accordingly: An hour's worth of cutting and several more worth of sanding left me with these pieces: Not having to eyeball the individual layers of the feed plate made for pretty light clean-up to make them stack just perfectly for gluing, which can also be said of the butt stock layers. Speaking of gluing: The Gathering of the Clamps there is the result of my choice to glue all three layers of the feed cover at once, which can either be attributed to my impatience or my excitement. Mounting that finished piece first will make it possible for the rest of the plate to slide together with ease, so hopefully this will make for a decent starting point once the stock is finished. Meanwhile, the sheer 1-1/2" thickness of the butt stock will make for quite the sanding adventure as I begin sculpting it to shape once the wood glue is fully cured tomorrow. My goal today was to finish cutting out and prepping the wood pieces, which I think went well. Word day aside, tomorrow I hope to completely sculpt the butt stock, as well as prep the thinner detail pieces (cut from thin sheets of acrylic plastic) and get them all glued in place. Again, thank you for the great response! I hope to hear back from all of you who requested either the PDF or CAD file with whatever critiques or suggestions you may have! Quote Link to comment Share on other sites More sharing options...
Jax Malachor Posted April 20, 2016 Author Share Posted April 20, 2016 It's been slow work sculpting the butt stock, but I finally have enough progress to warrant a photo or three, starting with the rather rough way I went into shaping the initial contours: Not the most glamorous of traced patterns, but the majority of the work would be done by eye anyway, resulting in: There still remains a lot of work to be done in refining the more striking lines of an actual Lewis butt stock, but I'm satisfied with where it's going. One detail I'm a tiny bit apprehensive about would be this piece protruding from the beneath the rear sight that you can roughly make out in Machine's photos: I intentionally left this piece out of the drawings due to its elusive nature in the photos. Making an educated guess could warrant decent results (which I may end up doing anyway), but short of etching out the shape and doing some light bondo sculpting, does anyone have any recommendations as to how one would go about replicating this detail? Thanks in advance for any and all help/comments/critiques, troopers! Quote Link to comment Share on other sites More sharing options...
Lozzer86 Posted April 20, 2016 Share Posted April 20, 2016 This is a recessed Tang into the Stock that is part of the twist lock frame. It's cast as part of the larger frame at the receiver end of the stock. The top and bottom of the stock have recessed tangs, but the sides are on top of the stock. Quote Link to comment Share on other sites More sharing options...
berkal Posted April 20, 2016 Share Posted April 20, 2016 Something like this ... Quote Link to comment Share on other sites More sharing options...
Lozzer86 Posted April 20, 2016 Share Posted April 20, 2016 That's it, buddy. Iirc there's 2 screws top and bottom. Maybe Nick can remember :/ Quote Link to comment Share on other sites More sharing options...
Lozzer86 Posted April 20, 2016 Share Posted April 20, 2016 I wouldn't 3D print that part. It'll be too brittle between the stock and receiver. Quote Link to comment Share on other sites More sharing options...
berkal Posted April 20, 2016 Share Posted April 20, 2016 Cheers bru. It's totally fine when glued with epoxy. Tried and tested. Although I may incorporate the tang into the stock for added simplicity as the kit is refined. The vertical single screw is actually a single bolt that passes through the stock and is secured with a nut at the bottom, a bit like a coach screw. The side bolts do something similar. This is the famous mk1* butt tang which added the side brackets because of breakages in the field. Quote Link to comment Share on other sites More sharing options...
Lozzer86 Posted April 20, 2016 Share Posted April 20, 2016 Every day is a school day Quote Link to comment Share on other sites More sharing options...
spOOL68 Posted April 21, 2016 Share Posted April 21, 2016 Excellent work! Quote Link to comment Share on other sites More sharing options...
berkal Posted May 4, 2016 Share Posted May 4, 2016 Just a note about accuracy: I saw you make reference to two "chisel" marks on the receiver underneath the bolt carrier. In actual fact these marks are détents for the safety bar slide that was present on the original Lewis gun and which are clearly absent from the Lewis that Machine et al inspected. Quote Link to comment Share on other sites More sharing options...
nick.black Posted May 4, 2016 Share Posted May 4, 2016 Yes you're right mate, the one we saw in the flesh did not have these. They are present on both sides on most Lewis' Quote Link to comment Share on other sites More sharing options...
LoveMonkey Posted June 2, 2016 Share Posted June 2, 2016 Loving this build so far. PM sent for a PDF! Quote Link to comment Share on other sites More sharing options...
bkendall1975 Posted September 21, 2016 Share Posted September 21, 2016 Great build pm sent for pdfs. ThanksSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
kman Posted September 21, 2016 Share Posted September 21, 2016 Is the PDF still available? I'd love to get a copy. Quote Link to comment Share on other sites More sharing options...
bkendall1975 Posted September 25, 2016 Share Posted September 25, 2016 Loving this build so far. PM sent for a PDF!Hey did you ever get the pdfs?Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Jax Malachor Posted September 27, 2016 Author Share Posted September 27, 2016 On 9/21/2016 at 11:08 AM, kman said: Is the PDF still available? I'd love to get a copy. PDFs are indeed still available, sorry about my slow responses! Anyone who wants either the PDF or CAD file can PM me at anytime with their email and I'll get it to you asap! Quote Link to comment Share on other sites More sharing options...
kman Posted September 27, 2016 Share Posted September 27, 2016 Got 'em, thanks! Quote Link to comment Share on other sites More sharing options...
Sparrow Posted January 24, 2017 Share Posted January 24, 2017 Does anybody have received the PDFs lately? I sent a PM to Jax one week ago, but no answers. Quote Link to comment Share on other sites More sharing options...
Sparrow Posted January 24, 2017 Share Posted January 24, 2017 File received! Thanks Jax!!! Quote Link to comment Share on other sites More sharing options...
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