Comments on: Experiments in Garden Hose Hydraulics http://www.hive76.org/experiments-in-garden-hose-hydraulics Making Things Awesome, Making Awesome Things Mon, 06 May 2013 01:37:38 +0000 hourly 1 http://wordpress.org/?v=3.5.1 By: pez http://www.hive76.org/experiments-in-garden-hose-hydraulics/comment-page-1#comment-2981 pez Thu, 23 Aug 2012 01:01:53 +0000 http://www.hive76.org/?p=3894#comment-2981 @ Bill Waters — those are some nice posts on your site.

]]> By: garrett http://www.hive76.org/experiments-in-garden-hose-hydraulics/comment-page-1#comment-2980 garrett Wed, 22 Aug 2012 00:22:41 +0000 http://www.hive76.org/?p=3894#comment-2980 Thanks for sharing the project. As a hydraulics engineer who designs backhoe, I am very impressed.

]]> By: Experiments in Garden Hose Hydraulics http://www.hive76.org/experiments-in-garden-hose-hydraulics/comment-page-1#comment-2979 Experiments in Garden Hose Hydraulics Wed, 22 Aug 2012 00:16:05 +0000 http://www.hive76.org/?p=3894#comment-2979 [...] Sharp of the Hive76 hackerspace has been playing around with garden hose hydraulics, and the result is rather cool: The pressure in your typical garden hose is nominally around 40 psi [...]

]]> By: davesharp http://www.hive76.org/experiments-in-garden-hose-hydraulics/comment-page-1#comment-2977 davesharp Tue, 21 Aug 2012 23:30:14 +0000 http://www.hive76.org/?p=3894#comment-2977 Capdiamont: That’s awesome, the trash compactor is one of the things I had in mind to try. I’ve heard of up to about 80 psi but it seems like 40 is a reasonable design point.

Bill: Very nice! What do you do about lube? I made some PVC / O-ring-based water blasters a couple of years ago and they worked well, but it would refuse to even budge without grease. I’m trying to avoid risking giving people grease stains and having to re-lube / troubleshoot them, but yeah, O-rings are definitely the fallback.

]]> By: Capdiamont http://www.hive76.org/experiments-in-garden-hose-hydraulics/comment-page-1#comment-2974 Capdiamont Tue, 21 Aug 2012 18:03:53 +0000 http://www.hive76.org/?p=3894#comment-2974 When I was working at Carls Jr, they used a water line powered trash compactor.

The pressure varies depending on where you are at. At Fort Humboldt CA state park, it is 60psi. We use it to hydrostatic test the steam locomotives and steam donkeys.

]]> By: Bill Waters http://www.hive76.org/experiments-in-garden-hose-hydraulics/comment-page-1#comment-2973 Bill Waters Tue, 21 Aug 2012 17:52:54 +0000 http://www.hive76.org/?p=3894#comment-2973 Hi Dave,

Very cool project, thanks for sharing.

Regarding sealing — I had the same problem making air cylinders for halloween projects, and solved it using CPVC plus O-rings — no lathe required.

The photos at http://www.waters.to/blog/a-modula-all-pvc-pneumatic-actuator/ show a cylinder using #212 rings to mate between a 3/4″ CPVC piston and a 1″ coupling. You can also use a #208 ring to match between 1/2 pipe and a 3/4″ coupling.

I’v also got some notes on using O-rings with CPVC that might be useful to you here: http://www.waters.to/blog/a-primer-on-pvc-cpvc-and-o-rings/

Good luck,

Bill

]]> By: MAKE | Experiments in Garden Hose Hydraulics http://www.hive76.org/experiments-in-garden-hose-hydraulics/comment-page-1#comment-2970 MAKE | Experiments in Garden Hose Hydraulics Tue, 21 Aug 2012 14:00:29 +0000 http://www.hive76.org/?p=3894#comment-2970 [...] Sharp of the Hive76 hackerspace has been playing around with garden hose hydraulics, and the result is rather cool: The pressure in your typical garden hose is nominally around 40 psi [...]

]]> By: davesharp http://www.hive76.org/experiments-in-garden-hose-hydraulics/comment-page-1#comment-2967 davesharp Mon, 20 Aug 2012 16:11:31 +0000 http://www.hive76.org/?p=3894#comment-2967 The backhoe-style digger is actually one of the main projects I’d love to be able to build with this, though admittedly it would be a high-powered toy (but isn’t that the best kind of toy?). One of the easiest projects would be to outfit a hydraulic cylinder to a pair of loppers to make cutting thick branches easier. Turns out you can buy hydraulic loppers, chain saws, etc. A pair of hydraulic loppers will apparently set you back about $1400 though, not including the pump.

]]> By: Jack http://www.hive76.org/experiments-in-garden-hose-hydraulics/comment-page-1#comment-2966 Jack Mon, 20 Aug 2012 14:42:20 +0000 http://www.hive76.org/?p=3894#comment-2966 and I will help with my hydraulic backhoe

]]> By: pez http://www.hive76.org/experiments-in-garden-hose-hydraulics/comment-page-1#comment-2965 pez Mon, 20 Aug 2012 04:28:17 +0000 http://www.hive76.org/?p=3894#comment-2965 Dang, I’m gonna make a hydraulic elevator, and a tree house so that I have an elevated destination.

]]>