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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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