Search found 6570 matches

by jrrdw
Thu Apr 25, 2024 1:10 pm
Forum: Pneumatic Cannons
Topic: pneumatic check valves
Replies: 3
Views: 3113

Re: pneumatic check valves

Find what you're looking for?
by jrrdw
Sun Nov 19, 2023 7:08 am
Forum: Pneumatic Cannons
Topic: Valve reliability
Replies: 7
Views: 12587

Re: Valve reliability

Piston and cylinder matching 101 For me the piston side clearance is kept between .0005 and .001 with the O-rings just taking up the clearance. You adjust the O-rings fit by the depth of the groove in the piston. The O-rings should fit the piston snugly but not so tight it stretches the wall thin c...
by jrrdw
Sat Nov 11, 2023 2:56 pm
Forum: Off-Topic Hobbies
Topic: Nazi Sonic Cannon
Replies: 14
Views: 24110

Re: Nazi Sonic Cannon

Thread cleaned, thanks guys!
by jrrdw
Sat Sep 16, 2023 6:54 am
Forum: Ammo & Parts
Topic: Some 3d printed ammo
Replies: 12
Views: 38647

Re: Some 3d printed ammo

Hi, I’m not sure if you are still monitoring this post, those red finned projectiles are awesome, where did you get the file from please. Did you print the launcher yourself and the same for that did you download the files for that. Kind Rgds Finally, I get to approve one! @Fierypackman, Welcome to...
by jrrdw
Sun Jul 02, 2023 6:19 am
Forum: Combustion Cannons
Topic: Seeking Expert Design Optimization Guidance
Replies: 4
Views: 9318

Re: Seeking Expert Design Optimization Guidance

Topic moved to proper forum section. @Goodtimes42, you have a PM in your inbox.
by jrrdw
Sun Jun 11, 2023 5:38 am
Forum: SpudFiles Discussion
Topic: Old link format redirect?
Replies: 5
Views: 9782

Re: Old link format redirect?

"Does anyone know if it would be possible for the site owners to redirect old URL formats to the correct threads?" It has to be done manually one by one and yes website migration breaks links.

I do what I can when I can as a moderator but the major workings of Spudfiles is the owners (PCGUY) thing.
by jrrdw
Thu Apr 13, 2023 5:49 am
Forum: Pneumatic Cannons
Topic: Kill switch
Replies: 1
Views: 4790

Re: Kill switch

Assuming you're using all PVC to build your cannon, wire everything inline except the LED, it will need a separate ground from the battery, that creates the circuit for the LED. The LED will also need to be able to handle the voltage your working with. You can google what ever voltage LED and normal...
by jrrdw
Thu Dec 29, 2022 6:11 am
Forum: Off-Topic Hobbies
Topic: Merry Christmas
Replies: 3
Views: 10825

Re: Merry Christmas

Lampoon's Christmas Vacation is the best holiday movie ever made, IMO.
by jrrdw
Sun Dec 25, 2022 9:52 am
Forum: Off-Topic Hobbies
Topic: Merry Christmas
Replies: 3
Views: 10825

Merry Christmas

Merry Christmas and Happy Holidays everyone!



Enjoy! 🎅
by jrrdw
Fri Dec 16, 2022 7:00 am
Forum: Hybrid Cannons
Topic: How do you install bursting discs?
Replies: 2
Views: 6013

Re: How do you install bursting discs?

According to the title question you put the burst disk in between two mating surfaces that is easy to access and can hold both sides all the way around tightly and evenly. According to your post question that cam lock is probably for water or other fluids usage and there's no accurate rating for the...
by jrrdw
Thu Dec 08, 2022 8:28 am
Forum: Ammo & Parts
Topic: Shoulder Holster For Large Handgun
Replies: 1
Views: 5195

Re: Shoulder Holster For Large Handgun

For a large handheld spud cannon. You should make your own...
by jrrdw
Tue Nov 29, 2022 5:56 am
Forum: Pneumatic Cannons
Topic: Blowgun max pressures
Replies: 6
Views: 10324

Re: Blowgun max pressures

Thanks for clarifying, jrrdw. I hope I’m not annoying you with too many follow up questions, but you seem to really know what you’re talking about. Do you have any idea why the manufacturer’s rep says it has no max input pressure? Is he just misinformed? He did get 3 downvotes for that answer. http...
by jrrdw
Wed Nov 23, 2022 5:35 am
Forum: Pneumatic Cannons
Topic: Blowgun max pressures
Replies: 6
Views: 10324

Re: Blowgun max pressures

No, it means 90 PSI is the max input.
by jrrdw
Sun Nov 20, 2022 6:41 am
Forum: Pneumatic Cannons
Topic: Blowgun max pressures
Replies: 6
Views: 10324

Re: Blowgun max pressures

I've worked in automotive and lawnmower repair shops since 14 years old, 55 now. I know that well made blow guns like what you posted will handle 150 to 175 PSI on a hot day for years until the valve or the o-ring in the valve wears out. As for a maximum input I'm sure in will vary depending on the ...