The Offcial Machinist Thread: Revised 01/04/2014

[wyz2285]

Hum but you can do a lot custom parts with the tap (I´d ask for a couple more of these later )...
So how about 20 euros?

[jackssmirkingrevenge]

You caught me in a good mood because it's Friday ;P 20 euros, but you will probably have to wait about a month till I get the tap, make it and send it. If you're fine with that I'll go ahead and order the tap.

How deep do you need the 5/8" threads... for the whole 50mm? Or is say 30mm enough?

Also, is the 1/4" thread you mentioned 1/4" BSP?

[wyz2285]

I'll need need to see the 5/8, it need to fit a pt regulator. Yes 1/4 that we use around here (Well a mouth from here it´s xmas, it would be a great present to myself ). I can wait. Thanks

[jackssmirkingrevenge]

To thread the whole part I would need to also buy a bottom tap:



That would not make it worth 20 euros.

A normal tap only will mean that around 5/8" from the end of the hole would not be fully threaded:

[wyz2285]

30mm it's enough , and a little chamfer in the start of the threading for the oring. Same as a paintball tank.

[jackssmirkingrevenge]

Can you give me the o-ring diameter (as installed)?

[wyz2285]

I don't really need a groove for the oring. Can you check one of your paintball regulators? I just want to install one on it. I'd measure the oring but I'm not home now

[jackssmirkingrevenge]

If you want the o-ring to seal, you need a recess to be cut for it, it won't seal on the thread. Don't really want to take my tanks apart...

No rush, it will be a week at least before the tap arrives.

[wyz2285]

ok, I will pm you later tonight
Edit diagram:
(A 45 degree 1.5mm chamfercould work too, maybe easier to make? )

[jackssmirkingrevenge]

(A 45 degree 1.5mm chamfercould work too, maybe easier to make? )

Boring a straight section slightly undersize to the o-ring will work better and be easier do make.

It's the method used here

[wyz2285]

Well, you are the machinist, not me as soon as it works
BTW, how much would that pen gun cost?

[jackssmirkingrevenge]

A fully machined one like that, material cost is low but the amount of time it would take to put together and finish means that I wouldn't sell one for less than €200.

[wyz2285]

Things like that it's what makes me wish a lathe+mill

[Labtecpower]

You wo'nt need any internet connection tyo fap, profit

I could easily churn up stuff like this 100 at a time at work, if onluy I hadf de time to do so

Do you need any more toolign jSr? It wouldn't be tyoo hard fgor me to buy some stuff from my boss with a aghuge discount, not to mention the higher quality we usually get at the machining department.

[Crna Legija]

You wo'nt need any internet connection tyo fap, profit

I could easily churn up stuff like this 100 at a time at work, if onluy I hadf de time to do so

Do you need any more toolign jSr? It wouldn't be tyoo hard fgor me to buy some stuff from my boss with a aghuge discount, not to mention the higher quality we usually get at the machining department.

go home lab your drunk!