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Piston Valve Golf Ball Hybrid (LRCH-200)

Built a hybrid cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Piston Valve Golf Ball Hybrid (LRCH-200)

Unread postAuthor: Binder17 » Sat Jan 14, 2017 3:59 pm

Have finally gotten it to a point where I am ready to showcase it. Steel chamber with aluminum barrel. Cam lock breech loading system. Piston made out of all thread, 2 caster wheels, o rings, and a piece of a dog toy. Shoots up to 9X mixtures at the moment. Enjoy.

https://youtu.be/68GFLJYNYTA
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Re: Piston Valve Golf Ball Hybrid (LRCH-200)

Unread postAuthor: mark.f » Wed Jan 25, 2017 5:20 pm

Looks great man! I'll get around to seeing it someday.
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Re: Piston Valve Golf Ball Hybrid (LRCH-200)

Unread postAuthor: auxiliary » Mon Mar 13, 2017 9:13 pm

That looks mad powerful! What kind of velocity did you record on the chrono in your video with a golf ball?
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Re: Piston Valve Golf Ball Hybrid (LRCH-200)

Unread postAuthor: Binder17 » Wed Aug 16, 2017 1:58 pm

auxiliary wrote:That looks mad powerful! What kind of velocity did you record on the chrono in your video with a golf ball?


Thank you! You will really like what I have next. Unfortunately we were unable to get a clean reading. We suspect that the "whoosh" from the muzzle interfered. We will try again over Labor Day.
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Re: Piston Valve Golf Ball Hybrid (LRCH-200)

Unread postAuthor: Binder17 » Wed Aug 16, 2017 2:04 pm

Update: Year 3 of the LRCH Project

So I haven't done much since the last round of testing I did back in December 2016. Now, I am preparing for a 3rd round of testing over labor day weekend in a few weeks. Here is a list of updates implemented.

-Piston ReDesign
-Spark Plug moved to center chamber

Regarding the piston, the 5/16 threaded rod started to bend at higher mixes from the force. So I am rebuilding the piston with a 3/8 Rod. I am also building a second piston with the cylinders being 3D printed. This will create a 50% lighter piston. So I am very curious to see if the material will hold up. I will post a picture of the completed pistons when they are done. For now, here is one of the cylinders.
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Re: Piston Valve Golf Ball Hybrid (LRCH-200)

Unread postAuthor: jackssmirkingrevenge » Thu Aug 17, 2017 5:18 am

This will create a 50% lighter piston. So I am very curious to see if the material will hold up.


What material are you printing with? I don't think ABS is quite up to the job.
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Re: Piston Valve Golf Ball Hybrid (LRCH-200)

Unread postAuthor: Binder17 » Fri Aug 18, 2017 9:33 pm

jackssmirkingrevenge wrote:
What material are you printing with? I don't think ABS is quite up to the job.


I will be testing an ABS one and a PLA one.
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Re: Piston Valve Golf Ball Hybrid (LRCH-200)

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Re: Piston Valve Golf Ball Hybrid (LRCH-200)

Unread postAuthor: Binder17 » Thu Dec 21, 2017 11:41 pm

New video of the final round of testing. Both my castor wheel piston and 3D printed piston held up well. Was able to achieve Mach 1.2 (fps reading not in the video). I think I am calling this one closed and moving on to the next project.

https://www.youtube.com/edit?video_id=m ... rrer=watch
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Re: Piston Valve Golf Ball Hybrid (LRCH-200)

Unread postAuthor: jackssmirkingrevenge » Fri Dec 22, 2017 8:10 am



Excellent, love the gratuitous 'MURICA intro :D

I think I am calling this one closed and moving on to the next project.


I concur, looking forward to what you come up with next.
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Re: Piston Valve Golf Ball Hybrid (LRCH-200)

Unread postAuthor: Air2theBrain » Sat Dec 23, 2017 5:11 pm

My goodness now this is a cannon...great video well done! :P
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Re: Piston Valve Golf Ball Hybrid (LRCH-200)

Unread postAuthor: Spudinator » Fri Jan 19, 2018 5:59 pm

Mmmmmm, brings me back to the good ol' glory days. Well built and good job.
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