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...As Im using the lathe to do my milling, Im using the measure 100 times, cut once rule. ...
You need a miller saves all the faffing about.In saying that first 7 was done with just a Myford ML7, took an eternity.Front looks quite short but will be ok. Looks thin where machined out for mag ie flex. Decent barrel fit in to breach unlike what you are copying using grub screws to centre barrel.
And doing a great job of it. Those look stellar.Eric
Nice Chuck. Is the air regulated at 850psi?I have a feeling these two guns will be quite a handful if allowed to go to full power so I'm trying really weak hammer springs to start off. Havent really done much on them over the Christmas period but ill have an update soon.CheersStot
Ok part 2...First thing to do was prepare the air tubes. You can make these any length you want within reason, but the longer they are, the more air stored, the more shots you get. With the UK limit of 12ft.lbf for an unlicenced airgun, these air tubes at 450mm long should get 70 shots or so in .22. I used aluminium for the air tube hence the thick wall. These will be holding 3000psi+What grade aluminium are you use for the air tube?So basically the pics below show that I.chucked up the tubefaced off the endMeasured the bore with some telescoping guages and a micrometerbored out the tube slightly to the minor size for the thread I was cuttingcut the thread.I use an old 2 flute milling bit as a boring tool. They work really well for this.Repeat 3 more times and give a cursory polish. CheersStot
I bought plans for a pump gun ages ago. 3 pumps 12ft.lbf But I'd love to try a single stroke up to that power. I would go steel for a pump up as the thinner wall would allow for a larger swept volume in a less bulky rifle.CheersStot
Quote from: Stot on December 09, 2010, 04:30:10 AMI bought plans for a pump gun ages ago. 3 pumps 12ft.lbf But I'd love to try a single stroke up to that power. I would go steel for a pump up as the thinner wall would allow for a larger swept volume in a less bulky rifle.CheersStotWho offers plans for a pump rifle? All the commercial plans I find nowadays seem to be for PCP style rifles.