Search found 982 matches

by farcticox1
Sun Jul 19, 2020 2:29 pm
Forum: Pneumatic Cannons
Topic: MJVO-3 venting air from the sides
Replies: 6
Views: 545

Re: MJVO-3 venting air from the sides

If the QEV is good it has to be that valve.
by farcticox1
Sun Jul 19, 2020 10:25 am
Forum: Pneumatic Cannons
Topic: MJVO-3 venting air from the sides
Replies: 6
Views: 545

Re: MJVO-3 venting air from the sides

The Clippard MJVO-3 is working as intended described by the manufacture. Under "Additional Information" on the product page it states "Exhaust-To atmosphere through holes in body.". https://www.clippard.com/part/MJVO-3 Just what I thought, but he says air does not come out of the barrel, so the QEV...
by farcticox1
Sat Jul 18, 2020 8:14 pm
Forum: Off-Topic Hobbies
Topic: Interesting To Know
Replies: 3
Views: 374

Re: Interesting To Know

I would have guessed the larger screw makes more force because of the shallower angle of the threads :shock: This is a good description I found in the comments 'Seems like the threads being further from the axis of rotation and thus the wrench having less mechanical advantage is a bigger factor than...
by farcticox1
Sat Jul 18, 2020 5:11 pm
Forum: Pneumatic Cannons
Topic: MJVO-3 venting air from the sides
Replies: 6
Views: 545

Re: MJVO-3 venting air from the sides

Components look good, you are filling from trigger valve (P). This is how I run mine QEV.jpg Trigger valve is normally open then blocks air feed and dumps P port to atmosphere to fire QEV. I think maybe you need to flip the connections on the MJVO-3. Hmmm, now I look at the connection diagram it app...
by farcticox1
Mon Jul 13, 2020 6:02 pm
Forum: General How-To & Discussion
Topic: Short question topic
Replies: 1488
Views: 101107

Re: Short question topic

071a09762c40fc2c4579d64aa7e8a016.png
071a09762c40fc2c4579d64aa7e8a016.png (7.66 KiB) Viewed 781 times
by farcticox1
Sat Jul 11, 2020 4:15 pm
Forum: General How-To & Discussion
Topic: Short question topic
Replies: 1488
Views: 101107

Re: Short question topic

Playing with the idea of a piston actuated semi automatic airsoft, there will be a spring behind the piston to return it to the home position which will allow another to drop into position, detent may be needed to stop it rolling out. Not sure what will happen to the piston as it reaches full stroke...
by farcticox1
Sat Jul 04, 2020 8:52 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Confused. Cylinder chamber to barrel ratio for compressed air.
Replies: 9
Views: 1166

Re: Confused. Cylinder chamber to barrel ratio for compressed air.

Higher pressure will always give better performance, you can use smaller chamber to get the same volume, and probably smaller valve, just that everything has to be rated for that pressure, that's why I stick to 150psi, materials are easy to get hold of.
by farcticox1
Tue Jun 23, 2020 6:27 am
Forum: Off-Topic Hobbies
Topic: The question "what is the best tank?" as a way of examining engineering stereotypes
Replies: 3
Views: 682

Re: The question "what is the best tank?" as a way of examining engineering stereotypes

Next week, 'What is the best Donut' obviously Boston Cream,
bavarian-cream-filled-chocolate-fudge.jpg
bavarian-cream-filled-chocolate-fudge.jpg (21.16 KiB) Viewed 611 times
by farcticox1
Sun Jun 21, 2020 4:57 pm
Forum: Off-Topic Hobbies
Topic: The question "what is the best tank?" as a way of examining engineering stereotypes
Replies: 3
Views: 682

Re: The question "what is the best tank?" as a way of examining engineering stereotypes

Tiger Tank workshop manual on the filing cabinet, lol, I got that in PDF.
by farcticox1
Sun Jun 21, 2020 4:51 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Crosman Trapmaster Shell Ejection
Replies: 2
Views: 399

Re: Crosman Trapmaster Shell Ejection

It needs to spin more :idea:
by farcticox1
Fri Jun 19, 2020 5:44 pm
Forum: General How-To & Discussion
Topic: "In the world of spuds today"
Replies: 2412
Views: 154267

Re: "In the world of spuds today"

Stripped the old BFG, fitted my homemade QEV as the main valve, and a new Normally Open trigger valve, first test shots are very impressive. :shock:
MFG (1).jpg
MFG (2).jpg
by farcticox1
Sun Jun 14, 2020 4:40 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: Blow forward AEG nozzle... Why it didn't take on?
Replies: 5
Views: 677

Re: Blow forward AEG nozzle... Why it didn't take on?

From what I am reading Blowback is just added recoil to give a more realistic feeling ?

by farcticox1
Sun May 24, 2020 3:36 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: New spring powered airsoft
Replies: 8
Views: 1407

Re: New spring powered airsoft

Mostly complete and had some test firing, loading works ok, just need the scope set up. Need to make butt plate and cover for the top spring.
005 (1).jpg
005 (2).jpg
by farcticox1
Sat May 23, 2020 5:03 pm
Forum: BB, Airsoft, and Pellet Guns
Topic: New spring powered airsoft
Replies: 8
Views: 1407

Re: New spring powered airsoft

Getting the loading mechanism linked into the charging mechanism has been a headache but it is getting close. 004 (2).jpg Charge/load position, block on the charge rod moves about 80mm then hits the rounded piece on the L arm as it only needs about 20mm movement to move the plunger to the load posit...