Maker
Most folk just call me; Orange Joe
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That would work, I've probably already got something similar in the shed actually, I'll have a look tomorrow. I had a rummage for things that might work and came up with the following:
View attachment 319283
Lab clamp at the top is a bit too big and bulky, certainly would work but then I wouldn't have anything to hold my burette. In the middle is an SS conduit hanger with the clamping bolt removed, a pair of them would work really well but the other one I could find just stretched when I pressed the pipe into it, could probably harden it and expand the elastic range but I can't be bothered, and any heat treat wouldn't survive welding to a keg anyway. Bottom is a the boss for the lab clamp, if it were bigger and not made of flimsy pot metal it would be ideal...
View attachment 319281
I'll get machining tomorrow. Bolt is just because it's quicker than modelling a knob but now I think about it, it doesn't strictly need to be tool-less, just fast, I don't want to be fully undoing bolts as I'd have to with an off the shelf offering.
Clamp is all done, started the hole at the lathe then moved it to the milling machine to bore it out to size, then slowly step over and out the top, I love that little boring head. It would have been easier to do it all in the mill but I don't have an endmill holder which fits my horizontal spindle and couldn't be bothered to put the vertical head on. Boring goes a lot faster on the lathe anyway so I took it to where it would almost break through the side before moving to the mill.
Back to the 4 jaw for a tapped hole in the end, M6 because I've got 6mm round and a die. I was planning on M10 so I'd have room for a copper tip to keep from marring the pipe but as pipe clamps go, I think it's elaborate enough already.
I tried cutting a hole in the keg but it turns out my holesaws are made of knob cheese so I just drilled it big enough to get a burr in and opened it to size with a die grinder.
Weld is horrendous, arc length was wayyy too long. Should be strong enough and it's well above the liquid level so it shouldn't matter, just looks ugly.
All done anyway, it works perfectly, quarter of a turn of the handle between a free easy adjustment and locked absolutely solid. I do wish I'd made it about 15mm longer so I wouldn't have had to notch out the top of the keg so much but it's done now.