Team MedBots

[Max]

Its a co2 fire extinguisher, I've seen people drill and tap in the end of the extinguisher before for pressure gauges, dump valves etc.
But I Think your right about drilling in the side

[Eventorizon]

Taping it wouldn't be enough. I can't see a problem with a welding it if its a low pressure system. Ask the Beauty guys, they weld up their own buffer tanks.

[Liftoff]

I can't see a problem with a welding it if its a low pressure system.

As long as its LP you could do that and then pressure test it...although I really doubt anyone will certify it, but at least you'll know its safe. I don't know how strict are the rules regarding alteration/modification of pressure vessels.

[Max]

Ok new idea- if I just use larger piping for the elbows then even with only half the flow I still get the maximum amount the burkert can take. Does anyone know what size pipe you need to supply a burkert with the maximum flow it can handle?

[Ellis]

I have no experience with robot pneumatics systems, but I have built many air guns that I'll typically fill to 17 bar (limits of a cheap bike pump!), and I'd never trust a vessel with a large diametre like that, and just a tapped hole or something in one side. In the end of the bottle is different, the weakness is even, but in the side sounds like a disaster waiting to happen. Unless it's an entirely custom setup, welded into place, properly pressure tested, etc, I'd give the idea a wide berth.

In fact, unless it is common practice in the hobby, I'd avoid drilling into the bottom of the bottle too.

[Max]

So that's not an option, am I right in thinking that by using 1.5" BSP fittings and tubes then even with 3 bends in it I get the same flow through to the ram as using 1/2" BSP fittings and tubes?

[maddox10]

Just build the damn thing, that spike won't do any damage, so whatever flow you give it, it won't matter.

[Max]

I thought I'd go for something different to the rest but I give up, I'll just use the same parts for a flipper like this:

It won't be the most powerful as I didn't make the ram that big as before I wanted lots of hits but it should be powerful enough to flip over other bots

[razerdave]

I'm guessing it would be forward hinged being mounted like that?

[Max]

I'm guessing it would be forward hinged being mounted like that?

That's an interesting idea, hadn't considered that! I was planning rear hinge though- should give lots of power to start with then a fast velocity once it gets moving.