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Stepper Motor Heat Issues

Last post by Allen58 « Tue Jan 20, 2026 1:30 am
Posted in General Cannon Discussion

by Allen58 » Tue Jan 20, 2026 1:30 am » in General Cannon Discussion

I know absolutely nothing about stepper motors. I bought a NEMA 17 stepper motor (17HS8401- ), with a nominal rated current of 1.7 amps. I did some...

0 Replies

93 Views

Last post by Allen58
Tue Jan 20, 2026 1:30 am
Semi auto airgun conversion project

Last post by Sarnento « Sun Jan 18, 2026 7:02 pm
Posted in BB, Airsoft, and Pellet Guns

by Sarnento » Sun Jan 18, 2026 7:02 pm » in BB, Airsoft, and Pellet Guns

Recently got into additive manufacturing, and thought about the possibility of something like a conversion from bolt action to semi auto could be...

0 Replies

140 Views

Last post by Sarnento
Sun Jan 18, 2026 7:02 pm
DIY Automatic Marble Shooter from Recycled Materials

Last post by annasmith « Sat Jan 03, 2026 3:13 am
Posted in General Cannon Discussion

by annasmith » Sat Jan 03, 2026 3:13 am » in General Cannon Discussion

I’m planning a DIY project to build an automatic marble shooter using only recycled materials like plastic bottles, PVC pipes, and old springs—no...

0 Replies

49 Views

Last post by annasmith
Sat Jan 03, 2026 3:13 am
fire extuinguisher cannon

Last post by tatertime « Mon Dec 29, 2025 10:12 am
Posted in Pneumatic Cannons

by tatertime » Mon Dec 29, 2025 10:12 am » in Pneumatic Cannons

what size fire extuinguisher and what type would be decent for a cannon? or at least i feel like a fire extuinguisher would work well. also what...

0 Replies

11 Views

Last post by tatertime
Mon Dec 29, 2025 10:12 am
Automatic "rifled cannon"

Last post by Spuddy_boink « Fri Nov 21, 2025 12:25 am
Posted in Combustion Cannons

by Spuddy_boink » Fri Nov 21, 2025 12:25 am » in Combustion Cannons

So I was looking at potato cannons (I know suprising right!?) And I notices they aren't terribly accurate so I figured hey make it more accurate and...

0 Replies

836 Views

Last post by Spuddy_boink
Fri Nov 21, 2025 12:25 am
Pneumatic cannon not firing consistently – help needed

Last post by Driftboss3d « Tue Nov 11, 2025 9:17 pm
Posted in Combustion Cannons

by Driftboss3d » Tue Nov 11, 2025 9:17 pm » in Combustion Cannons

Hi everyone,
I’ve been building a pneumatic cannon using 2 PVC, a 120 psi compressor, and a quick-connect valve, but I’m having an issue: the spud is...

0 Replies

575 Views

Last post by Driftboss3d
Tue Nov 11, 2025 9:17 pm
Where do I fire this thing?

Last post by CraigRepublic « Tue Apr 01, 2025 6:51 pm
Posted in Combustion Cannons

by CraigRepublic » Tue Apr 01, 2025 6:51 pm » in Combustion Cannons

Hello! This is my first time posting and first time building a potato cannon. Im very confused on where I can fire this thing.

I know that most of...

0 Replies

22842 Views

Last post by CraigRepublic
Tue Apr 01, 2025 6:51 pm
Bell Reducer or Flush Hub Bushing

Last post by mick04u « Thu Mar 20, 2025 12:25 pm
Posted in Combustion Cannons

by mick04u » Thu Mar 20, 2025 12:25 pm » in Combustion Cannons

Hello, I’m building a potato gun with a 4” combustion chamber and a 2” barrel. What would be a stronger transition from the 4” to 2” pipe, a bell...

0 Replies

25299 Views

Last post by mick04u
Thu Mar 20, 2025 12:25 pm
3d printed QEV

Last post by Laser diode « Tue Dec 17, 2024 4:01 pm
Posted in Pneumatic Cannons

by Laser diode » Tue Dec 17, 2024 4:01 pm » in Pneumatic Cannons

I had an aluminum qev that worked great but I noticed many things about it that could be improved so I decided to try to make one myself. At first I...

0 Replies

58791 Views

Last post by Laser diode
Tue Dec 17, 2024 4:01 pm
Pneumatic System Using 1/4 Inch Steel Balls

Last post by byron555 « Sun Dec 15, 2024 8:45 pm
Posted in Pneumatic Cannons

by byron555 » Sun Dec 15, 2024 8:45 pm » in Pneumatic Cannons

Hello, I own a 1/4 inch slide valve set combined with a QEV and would like to build or find an optimized semi-automatic loader to use with 1/4 inch...

0 Replies

59505 Views

Last post by byron555
Sun Dec 15, 2024 8:45 pm
Confused about stepper motors

Last post by Selma « Fri Dec 13, 2024 2:03 am
Posted in General Cannon Discussion

by Selma » Fri Dec 13, 2024 2:03 am » in General Cannon Discussion

How do I connect a stepper motor to a circuit board. I'm very new to this and need a little help.

I have a k8055 and a hybrid stepper motor, size 11...

0 Replies

57727 Views

Last post by Selma
Fri Dec 13, 2024 2:03 am
Pneumatic System Using 1/4 Inch Steel Balls

Last post by byron555 « Mon Dec 09, 2024 8:45 pm
Posted in Pneumatic Cannons

by byron555 » Mon Dec 09, 2024 8:45 pm » in Pneumatic Cannons

Hello, I own a 1/4 inch slide valve set combined with a QEV and would like to build or find an optimized semi-automatic loader to use with 1/4 inch...

0 Replies

59981 Views

Last post by byron555
Mon Dec 09, 2024 8:45 pm
Pneumatic System Using 1/4 Inch Steel Balls

Last post by byron555 « Sun Dec 08, 2024 8:56 pm
Posted in Pneumatic Cannons

by byron555 » Sun Dec 08, 2024 8:56 pm » in Pneumatic Cannons

Hello, I own a 1/4 inch slide valve set combined with a QEV and would like to build or find an optimized semi-automatic loader to use with 1/4 inch...

0 Replies

60129 Views

Last post by byron555
Sun Dec 08, 2024 8:56 pm
Making a Snow Cannon

Last post by byron555 « Fri Dec 06, 2024 5:33 am
Posted in Pneumatic Cannons

by byron555 » Fri Dec 06, 2024 5:33 am » in Pneumatic Cannons

Hello, this year I want to make the traditional snowball fights more interesting and exciting this winter by making a snow cannon that can launch...

0 Replies

58979 Views

Last post by byron555
Fri Dec 06, 2024 5:33 am
Vintage cap gun to potato gun conversion...

Last post by musket « Wed Dec 04, 2024 10:16 pm
Posted in Miniature Cannons

by musket » Wed Dec 04, 2024 10:16 pm » in Miniature Cannons

Hello all...my first post! So....I have a long barrell musket/rifle cap gun I want to make shoot potato. It's made of metal and wood. My thought is...

0 Replies

57832 Views

Last post by musket
Wed Dec 04, 2024 10:16 pm
Can someone help me build a tennis ball Launcher

Last post by Opob « Sun Nov 03, 2024 1:51 pm
Posted in General Cannon Discussion

by Opob » Sun Nov 03, 2024 1:51 pm » in General Cannon Discussion

Im a complete noobie and ive tried looking around and cant find something in good detail about how to make something.I tried looking through the wiki...

0 Replies

61836 Views

Last post by Opob
Sun Nov 03, 2024 1:51 pm
QDV Piston leak question

Last post by Pro « Tue Oct 29, 2024 4:47 pm
Posted in Pneumatic Cannons

by Pro » Tue Oct 29, 2024 4:47 pm » in Pneumatic Cannons

Regarding the famous QDV valve as outlined in this video:

There is one thing I am not understanding.
Once the rod is retracted and the piston...

0 Replies

59004 Views

Last post by Pro
Tue Oct 29, 2024 4:47 pm
Trying to get better power and range out of my tennis ball launcher

Last post by ColtD « Tue Oct 22, 2024 4:38 pm
Posted in Pneumatic Cannons

by ColtD » Tue Oct 22, 2024 4:38 pm » in Pneumatic Cannons

Joined cause im a bit stuck in my design/testing of my launcher and hoping i can get some ideas to add velocity and power to my projectiles. Im...

0 Replies

58684 Views

Last post by ColtD
Tue Oct 22, 2024 4:38 pm
High mixture hybrid gun "fuel cartridges" proposal

Last post by YBCO666 « Mon Oct 21, 2024 1:05 am
Posted in Hybrid Cannons

by YBCO666 » Mon Oct 21, 2024 1:05 am » in Hybrid Cannons

Well, I don't have the money, or the equipment, or the room to make a hybrid gun (100x+ mixture), the best I could do is make the 3D plans and see if...

0 Replies

58930 Views

Last post by YBCO666
Mon Oct 21, 2024 1:05 am
GAW 770 by Grégory

Last post by Turbine32 « Wed Sep 11, 2024 3:30 am
Posted in Hybrid Cannons

by Turbine32 » Wed Sep 11, 2024 3:30 am » in Hybrid Cannons

Bonjour à tous je suis français et en France pas beaucoup de monde ose les choses... Mais moi je le fais !
Pour continuer à faire vivre nôtre plaisir...

0 Replies

60225 Views

Last post by Turbine32
Wed Sep 11, 2024 3:30 am
Newbie builder, need some help on a school project

Last post by Potatolauncher424 « Sat Sep 07, 2024 9:06 pm
Posted in General Cannon Discussion

by Potatolauncher424 » Sat Sep 07, 2024 9:06 pm » in General Cannon Discussion

Hey potato launchers! (or whatever y'all call each other! XD) I've been researching for a potato gun project at school and need some help. I can't...

0 Replies

58517 Views

Last post by Potatolauncher424
Sat Sep 07, 2024 9:06 pm
School project potato cannon

Last post by Techexical « Wed Aug 28, 2024 11:58 pm
Posted in Combustion Cannons

by Techexical » Wed Aug 28, 2024 11:58 pm » in Combustion Cannons

Hey all, I am building a combustion potato cannon for a school project, a 1.5 inch ABS pipe based cannon (I know, pretty risky seeing how people see...

0 Replies

59716 Views

Last post by Techexical
Wed Aug 28, 2024 11:58 pm
Gregazzgun 770

Last post by Turbine32 « Mon Aug 05, 2024 12:03 pm
Posted in Hybrid Cannons

by Turbine32 » Mon Aug 05, 2024 12:03 pm » in Hybrid Cannons

Bonjour à tous je crée ce poste (je suis français) pour participer à continuer de donner vie au forum...
J'ai toujours aimé construire des choses...

0 Replies

59715 Views

Last post by Turbine32
Mon Aug 05, 2024 12:03 pm
200th post yay

Last post by quinn whitsitt « Wed Mar 13, 2024 9:04 am
Posted in Website Discussion

by quinn whitsitt » Wed Mar 13, 2024 9:04 am » in Website Discussion

what do you want me to do and is there anything that I can do to help also what do you think the topic should belong to an what will be in the...

0 Replies

67756 Views

Last post by quinn whitsitt
Wed Mar 13, 2024 9:04 am
I need some help with pcp tanks

Last post by quinn whitsitt « Tue Mar 12, 2024 1:04 pm
Posted in Website Discussion

by quinn whitsitt » Tue Mar 12, 2024 1:04 pm » in Website Discussion

dose anyone know where I could find some 100 cu foot tanks rated from 6000 psi to 6800 psi

0 Replies

69652 Views

Last post by quinn whitsitt
Tue Mar 12, 2024 1:04 pm

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