hectmarr wrote: ↑

Thu Aug 19, 2021 6:47 pm

It is not a very neat job, but it works fast and it pays quite little, it is what it is.

Almost like a T-34 tank

It's good that you have this resource to better flesh out your ideas!

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.

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:

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.

As part of my current animation spree, herewith a compendium of possible pneumatic air cartridge configurations: https://i.imgur.com/lwcjecL.gif Exhaust valve with poppet valve pilot https://i.imgur.com/rtY3MLB.gif Balanced poppet main valve https://i.imgur.com/XZyo5KK.gif Balanced mechanically-lock...

Very clean work, nice "proper" evolution after all that prototyping...

I like the markings too, although perhaps it's more of a Fuerza Aerea (+Butanea) Argentina sort of equipment

Very interesting (and creative use of Tippex!) and good that you made it work!

I had done some experiments with lead projectiles sealed in a breech when playing with hybrid cartridges, metal on metal there were no leaks and it worked to about 8x if I recall correctly.

An example of the Crosman "Rocket Spear Sea Gun" came up for sale locally, were it a different economic climate I would have contemplated purchasing it but alas, these are difficult times and choices must be made :roll: It did however persuade me to do some more digging and I found the patent . http...

I have obtained a second example of these curious devices, of more recent manufacture with a number of refinements compared to the older original. Here they are side by side, with the newer version below the original one: https://i.imgur.com/UuNsjfv.jpg The most obvious refinement is a cutout in the...

I think I will do what I wanted to do with the first one (but hesitated because it's a bit of an antique) and give it a bit of an upgrade. Interesting that the current version being sold has gone back to the removable bolt and two fixed power settings, albeit with a rear cocking bolt and a trigger g...

Herewith my addition to the unusual vintage airgun stable, the Benjamin 30/30. This particular example was purchased as "unrepairable" but is in quite fine condition and appears to be complete: http://i.imgur.com/K2Y10mYh.jpg Internal diagram showing the unconventional mechanism. The barrel assembly...

I definitely have a weakness for old and unusual airguns :) I like the idea because it comes out of the conceptual "box" and is repeated all the time. There is always a different way to do the same with its pros and cons for sure. I was unaware of this design when I posted almost the same idea 15 ye...

A while ago I came up with a design that used an electric motor to cock a hammer valve that basically consisted of the barrel itself. looking at it, it would probably work just as well without the motor, though you'd need to add a latch that would hold the barrel in the cocked position. It's fairly ...

Moonbogg wrote: ↑

Mon Jul 25, 2022 9:44 pm

I will either leave to my kids or force the kids to bury me with the cannons, not sure which yet.

The latter would be an interesting discovery for future archeologists in the former case they could be used to distribute your ashes

I remember proposing this sort of test a long time ago :D That was very fun to watch, I'm amazed by how much pressure it took to actually burst a lot of the PVC, although that of course is no endorsement to exceed the working pressures recommended by the manufacturers. It also makes the point that e...