mark.f wrote: ↑

Thu Jul 16, 2020 11:25 pm

still not the same as sawing into some pipe yourself.

In adulthood it is gratifying to add some movie classics from one's adolescence to the collection



I'll agree however that it's nowhere near as satisfying as designing and building your own.

Interesting design, if I understood correctly it's intended to cycle with a constant flow of gas?

That is some impressively fast and accurate shooting!

... and a Happy New Year!

Moonbogg wrote: ↑

Fri Oct 29, 2021 6:00 pm

I think you'd have to try it out yourself.

Maybe not, given this appears to be a bot account promoting whatever is in the signature.

That's pretty impressive, especially for such a short barrel and small chamber, although I wouldn't tale a shuttlecock as a representative projectile really. As it's not airtight it's basically being propelled by the air impulse and a fast-opening valve would have the advantage here irrespective of ...

That's just unbelievable.

Have you basically made a pneumatic version of the XM25?

Does it have a countdown timer to initiate the round based on a predetermined expected trajectory or is it counting revolutions assuming a rifled barrel?

Anatine Duo wrote: ↑

Fri Nov 12, 2021 6:32 am

what flash hider is that?

Surefire knock-off made for airsoft, it's steel but I doubt it's going to last a long time to be honest.

mark.f wrote: ↑

Sat Aug 28, 2021 12:27 pm

Quad rails god rails.

That's what I ended up using, although it's now a tri-rail after I cut it to fit.

Here's what it used to look like:



... and here it is now, in all its shameful glory:

mark.f wrote: ↑

Thu Sep 16, 2021 7:01 am

joergsprave v.2 incoming.

hah, not quite (yet... he was 5 years older than I currently am before getting started!) . I have been having a little fun with powderburners lately, although it does keep one away from the workshop.

Not technically a spud gun but I bought myself a crossbow and it's quite fun and having never fired a "proper" one before, surprisingly accurate.

This was at 40 yards:

There's no comparison the smaller cannon shoots with way more force Have you quantified that force? Are you running the same pressure in both launchers? Seems a little counter-intuitive that a valve with what I presume is faster opening time but lower flow would perform better in these circumstances.

iknowmy3tables wrote: ↑

Thu Sep 09, 2021 3:17 pm

there are plenty of carbide rifling buttons for sale on ebay around $50.

I've seen these but I was a little hesitant to purchase one, lest it's something flagged by the powers that be in the same way those wink wink nudge nudge "fuel filters" tend to be.

mark.f wrote: ↑

Wed Sep 15, 2021 9:13 am

I would say red chef caliber is more available at my local supplier than russet.

Not a lot of Dodge Calibers left in used parking lots once the pandemic hit.

stup86 wrote: ↑

Thu Aug 26, 2021 10:29 am

This project is not dead, but life took over and 2 years passed.

It happens to the best of us, looking forward to seeing progress