Velocity test on a can of water:



Almost finished...

It has a 1/2" qev, 0.875" barrel. My first breechloader I think. Barrel short enough to muzzleload an arrow.

Going for a California-legal look.

Manual recommends the following: ten days after the machine is put into normal use, it is necessary to change the oil in the headstock. Do you think that's enough? Changed the oil in mine before I ran it in and after. Now change it yearly. Doesn't hold much oil so it's cheap insurance. Don't forget...

Here's one, for example : https://www.valvesonline.co.uk/manual-v ... l-bkh.html

Relatively cheap, pom / molybdenum disulphide seals, rated for 500 bar.

If you are using a manual air pump, the lubrication system goes into it. In the case you use a motocompressor, it is the same. Always the air that comes out will be lubricated. Commercial devices are not very expensive. I suggest you study thoroughly, what kind of lubricant is a friend of the seal m...

Nice! I haven’t logged on in quite a while and I love how the new design looks!

Hi guys! I made this video of my spud cannon shooting through a bunch of different materials. Enjoy!

Successful test run! :D The simple charger works perfectly, makes a metallic sound barely perceptible and most importantly, does not fail. I have charged about 200 bb´s and the small battery seems to still have a lot of charge. The idea is that in the real weapon, the tube that houses the bb's, is b...

I am building this charger to provide future "Strong Boy´s" mono pumping, with a very simple system of loading 1/4 "bb's. :D The idea is not to complicate the weapon, I want it very simple, but avoid loading the ammunition through the firing cannon with the drumstick. It is what does not conform me ...

Hi Jack! Nice to see you here. :D I saw your drawing and it's good. I think the solution, for your specific case and the power of the solenoid. Many amps will be necessary to overcome the resistance of the o´ring, and little more than that. According to what I have tried, with about 800 w, it would ...

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I got a request to blast a watermelon so I did that, some osb, and plywood. Enjoy!

It's almost certainly due to burrs or shite geometry, but it could be problems with the handwheel, bent screw, etc. First thing to try would be to remove the handwheel parts entirely, reassemble the rest of the slide, adjust the gibs to "close enough but a bit slack" and see if you can slide it smoo...

I rarely use the compound unless cutting tapers. For longitudinal turning, any misalignment will throw diameters off. I actually have one qctp setup that mounts directly to the cross slide...no compound at all. Chamfers and threading are accomplished by tool geometry alone. For the diy dro, I'm usin...

Oh, my. That's shit design. Really shit design. What I'd probably do, if possible, would be to find a way to position and then block #25 exactly where it should be, /temporarily/, then drill and ream for a couple of locating pins to hold everything square. You can then enlarge the bolt holes if nece...

JSR, could it be an option to apply an abrasive polishing paste between the rough parts and work them back and forth, allowing them to polish themselves in a natural way? Just a thought. I'm sick with jealousy by the way. SICK! Not coronavirus sick, but still quit green with machine envy :mrgreen: