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Hi here`s a bigger pic of some clever bugger stuff, I forgot to mention it`s the saddle that's moved in .015" and clamped up, them the chuck`s turned on, cross slide is on infeed and cutter then slices of .015" of bits of steel. This is coming along fast so better have think about barrels as I have the steel ready first job will be to give the gun drill a sharpen up, yes I do it on my lathe, yep , I`ll show you.
Attachment 139049, the big look at it.
Attachment 139050, two barrels to be.
I find this very interesting keep it coming.
I love the four jaw as a fly cutter but it still gives me the creeps for some reason. I know it shouldn't, but it does :P Loving the build updates!
Well you just make sure it`s all clamped up nice and tight, then just small cuts nice and slowly. They say in machining you make hast slowly and now you can see the transformation from round lump of steel to a thing of beauty, a roller action block, it`s getting there. But will be having a change of projects at this stage, but don`t worry ,I`ll be back to it. I`m just hanging out to see if I can make a better barrel, so just gave the gun drill a tickle up with the diamond grind wheel, just .002" to refresh the edge so it`s nice and sharp for the 4140 steel. The drill is 48" long, has a grove running down it for the chips to flush out as you are drilling and that plastic bit of pluming is my chip box. diverts the oil and chips back to the chip catcher and oil tank.
Attachment 139390, Very nice.
Attachment 139391, Grind wheel ready and T/C tipped drill lined up to sharpen.
Attachment 139392, it`s 48" long and it saves me $50 if I do it myself.
Attachment 139393, You may just see the shiny bit that's been ground on the face, it`s ready to go.
I take it the chip box rides up against the muzzle (or muzzle projects into the chip box a bit) and as the swarf pushes out of the barrel it drops free?
I like seeing your lathe based solutions to problems. Being flexible in problem solving is an excellent skill.
No, The angle bracket is clamped in place holding the gun drill guide that is set at lathe centre line and barrel stock in four jaw chuck is pressing on the front of it with Oring seal. The body of drill guide extends through bracket and chip pluming is pressed over this with a seal. Shiny steel is barrel stock, then drill guide holding chip box. All has come to a halt , water contamination in my oil has stuff up one of my oil pumps, have a spear one so cooking oil to get rid of the water and check if new pump works.
Attachment 139756, This is how it works.
Ok, Got the barrel making bit sorted so back to the roller action, it now has two holes drilled for milling clearance and after careful setting up have started milling out the guts where the breach block and hammer goes. I have also rebuild a deck as I could see a bit of rot getting into the old one, so that`s why things are a bit slow, but then what`s the rush . Put in a order for a T/Carbide .450" pull through reamer from the U S, so one run through should see the bore ready for rifling, that`s when I get it, well no rush, :XD:
Attachment 144056, Two holes.
Attachment 144057, Milling started.
Attachment 144058, Nice new deck.
Attachment 144057,
I have to admire your tenacity! That is lot of work without a milling slide, buggerizing around with packers and a dial gauge before you can make a cut! It just goes to show what can be done on a lathe when liberally mixed with stubbornness and ingenuity. The pollys will never win!!
What is the spring for on top? To stop backlash?
Comeing along nicely Doug
The first mill cut out .650" slot and I needed .735" per the plans, so after a reset up to get it lined up on centre I mounted a broken mill cutter with only one cutting flute. Set in the four jaw chuck I can offset it to fly cut out to the right size, just adjust the jaws a bit to set the cutter out a bit more till the slot is at the right size, stopped at .734" so I can give it a bit of a polish. Yes there is a bit of slop in the cross slide, so spring helps and small cuts, one off my coming up projects, a new nut, have some torbin bronze and ali bronze for it and as I need the cross slide to do this will have to do some careful measuring to thread the nut. May make it like a clasp nut so I can adjust it for wear.
Attachment 144093, I didn't break it, bought a box of used one`s on TRD/me, some are good and very handy.
Still in milling mode, have changed the cutter for a rounded tip one so puts a corner Radis to help stop cracking. This is now milled out to size ready for the hammer and breach block so may have look at carving them out from a lump of 4140 I had left over from the Sharps build. Still a lot of work on the action yet, watch this space, :), could be a few years before it goes bang.
Attachment 144612, Coming on slowly.
So with that part milled out it`s really starting to look like it will do the job. Fear bit of work to do yet but it`s coming a long, here`s what it looks like so far and the pins are a snug fit so I`m happy with that.
Attachment 144665, What can I say.
Attachment 144666, Pins are a tap out fit, :thumbsup:
lovely work...
OK, so having milled out all the centre it needs to be square in the round corners, this was achieved by using a T/C tipped cutter from a saw blade first and then a small HSS square one to finish. Mounted in the four jaw chuck and set at the right height the lathe saddle is moved back and forward like a shaper, with small infeed on cross slide got the job done.
Attachment 145656, T/C tipped blade cutter first.
Attachment 145657
Attachment 145658, square one to finish.
Attachment 145659
Jeez your a clever bugger. Its amazing what you can get that lathe to do. Nice simple solutions too.
Yes I can get it to do most things, here`s one, It helps with my beer supplies,:) as I use shims to pack things up I have found that ali beer cans cut into strips are the best for this. Different brands of beer come in cans of different wall thickness and have let my wife know that I must have them for my hobby, but you will have to empty them first she said, I know, its a hard job but I know I "CAN" do it.
So how are you getting the square vertical edge at the far away side from this angle? Do you flip the whole action vertical and slot drill across the lower edge? Or shim action up and down with current setup?Quote:
Originally Posted by homebrew.357
http://www.youtube.com/shorts/Aag-GvhxEwA
Just saw this and thought a few would find it interesting.
Well guys this bloody lock down bit is a bugger wearing out my shoes walking the dog , getting wood to keep the fire going. My lathe has packed a sad, broken gear in gear box so using it by hand. Yep still working on my project and a few others to keep busy , so its coming along with my back yard way. I have made a barrel for it , just have to chamber it. Pic`s so far.
Attachment 178249
