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Valve Base
Darren:
I wasn't happy with the way this valve cap was going so decided to approach it with a different idea.
A 20mm SS bar was knurled on it's outer edge, I'll explain why in a mo.
Then drilled and bored to a sliding fit on the valve pin
Testing the fit on the valve
Now I need an insulating jacket for this part, this was made from Teflon. I gave myself 5mm insulation thickness all round. This should be ample.
From above
Below
These two parts are a tight fit. I mean the tolerances aren't even close. If these where two metal parts they would have no chance of being pressed together.
However this is Teflon, slippyest substance known to man, so they say. They're not kidding either, it's quite slippy in your hands and a with 50mm bar you can easily loose your grip.
Anyhow, I was planning to use a press to push these together, but it turned out easy enough to do by hand.
Now you can see why the knurling, it's an attempt at giving them some grip to keep them together. It should work.
I need to tap the SS top with a 5mm thread, but I need to order one first. Then I can fit these two parts together.
The electrical wire will thread into a cross drilled hole and be secured by a grub screw from inside the unit. From inside to avoid anything showing and any "live" metal bits.
The whole contraption will be secured to the valve with two 3mm grub screws. A bit hard to explain but I first need to order a 5mm tap before I can continue.
Darren
Divided he ad:
Hi Darren...
So I'm trying to get my head around this! :scratch:
Is the new knurled part instead of the split copper bit? Is the thread that you are putting into it to make it something like the rendering by Roger?
Or are you making it a little like the pic of the original style clip? A wire exiting the top side of the teflon and the stainless bit with the threaded hole and a bolt clamping the wire to it inside the teflon drum so that no one can touch it?
Just a few questions to keep you busy :D
I've also thought of a clamp idea so If this dosen't work as well as you envision I could post that? Problem is I'm struggling to Crap o Cad the damn thing!!! It'd probably me easier for me to make it!!
Still my idea might not work, and it wouldn't be your idea, so it's probably a good thing I can't draw!!
I'm more than intrigued about the final product :)
Ralph.
Darren:
Hi Ralph,
I think you got it, replace the copper bit earlier.
This pic should help, now ordered the 5mm tap so should progress soon... :)
bogstandard:
Ahah! You now want it to be a fixed cap rather than a removable sprung loaded one.
Talk about moving the goalposts. :lol:
Wasted brain cells Bogs.
Divided he ad:
Suddenly it all became clear!!! :thumbup:
Good stuff, Just the snail mail post to delay the job.... I get that quite often too!
Keep us posted.
Ralph.
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