Merci OlivierTaking shape, almost there. The jig setup is really cool and smart.
Just curious, is the trigger going to be functional? I'm pretty sure it's not when looking at the original prop.
ok, so, another very cool and unexpected feature that I discoved on the amazing refs I had access too, the whole body has a very slight taper to it. it's subtle but it hads so much dynamic to the shape. The only issue is that this is super boring and annoying to do on the lathe... the taper is 0.5° which is super small and difficult to setup and
hey, thank you for your tips. I have a small workbench lathe though, no way for me i think to do what you refer to in the first part. I also have to do all my operation in a very clear order. doing the tapper first would mean I can't chuck my piece from the tappered end anymore. no worries, it works well so farThis is not a particular blaster I am interested in, but I am a former guitar maker and a decent machinist, and wanted to offer a couple tips you may find helpful.
I’ll start with the taper. I’ve also made a few pool cues, and those have a slight taper over a long length. The “trick” I developed was to use a boring head (normally used on a knee mill) in the tail stock with the desired offset dialed in. Then, in place of the boring bar, you install the small live center. You create an offset tail stock. Some larger lathes allow you to move the tail stock out of alignment to do the same thing, but the boring head worked great and could be removed without disrupting the tail stock being on “dead” center. You can’t do a huge offset, unless you get creative at the chuck end. The offset causes the part to “wobble” in the chuck, and you should use a depth stop and other precautions to keep things from flying around the room.
Second thing is threads.
The thing with single pointing threads is that right handed ones always head into the chuck. What I prefer to do is to set up the tool on the back side of the work and run the lathe in reverse. Then I can start the tool at the relief adjacent to the chuck side and let the tool run off the part with each pass, away from the chuck. This is particularly helpful with ID threads, especially if they’re deep. Use a dial indicator against the apron to indicate the bottom or end of the thread. Then when you catch your mark on the threading wheel, each cut will begin perfectly. Then, again, you let the tool run out of the hole.
Single point threads are simple, yet very satisfying when done well. Nothing like mating threads you’ve made, and having them work!
And your work looks very nice. I’m sure your instruments are as well!
Hey,Maybe a dumb question, but are you sure the taper isn't lens distortion? It being such a minor amount makes me suspicious.
I wasn’t questioning the order of operations; just giving some tips applicable to specific operations.hey, thank you for your tips. I have a small workbench lathe though, no way for me i think to do what you refer to in the first part. I also have to do all my operation in a very clear order. doing the tapper first would mean I can't chuck my piece from the tappered end anymore. no worries, it works well so far
thanks![]()
Hello there,
not a lot to show today, but still moving forward.
I did the concave shape at the top of the handlet to craddle the body tube, took me a long time to setup a jig to hold the handles to the right angle, in the center of two rails for the router and all... not easy. But in the end it worked nicelly.
I do a first pass in the center at the full depth of where the tube will actually sit, then a second pass, larger but less deep, to have a rough curvature matching the tube size. then i'll just have to finish by hand.
first pass here:
View attachment 1443309
first and second pass:
View attachment 1443310
and all of them done:
View attachment 1443311
cheers
don't hesitate to comment guy
It's gorgious! Can't wait to see it finished buddyHello there,
not a lot to show today, but still moving forward.
I did the concave shape at the top of the handlet to craddle the body tube, took me a long time to setup a jig to hold the handles to the right angle, in the center of two rails for the router and all... not easy. But in the end it worked nicelly.
I do a first pass in the center at the full depth of where the tube will actually sit, then a second pass, larger but less deep, to have a rough curvature matching the tube size. then i'll just have to finish by hand.
first pass here:
View attachment 1443309
first and second pass:
View attachment 1443310
and all of them done:
View attachment 1443311
cheers
don't hesitate to comment guys, I talking a bit alone here![]()
wow, what a beautiful workshop .... and so clean, mine is always so messy....