Page 1 of 1
Bored on a Friday night...
Posted: Fri May 15, 2009 11:02 pm
by jmccalip
So I made this. UHMW 3" piston. 10 and 3/4 oz.
Grrr, I need to return this stock to Mcmaster. I bought the wrong size.
I'm still waiting on the mailman to deliver my grooving tool.
Posted: Fri May 15, 2009 11:21 pm
by Gippeto
Ooooo...Pretty.
Waiting for a "grooving" tool?? Why?
Grind a form tool from a HSS blank, or use your parting tool. That's what I do.
Posted: Fri May 15, 2009 11:31 pm
by jmccalip
Gippeto wrote:Ooooo...Pretty.
Waiting for a "grooving" tool?? Why?
Grind a form tool from a HSS blank, or use your parting tool. That's what I do.
I don't have a decent grinding wheel, and I don't use a parting tool.
And for whatever reason, my belt decided to break as I turned on the lathe. No problem though, I just cut a piece of weedeater line and fused it together. Works great, haha...knocks on wood.
Sure beats paying $15 for one online and then waiting a week to get it.
Posted: Fri May 15, 2009 11:34 pm
by inonickname
I wouldn't bother making a grooving tool from HSS, you need to remove a lot of material and they go dull fast. As gipetto said, just use your parting (cut off) tool. Hell, if your steady enough you can just hold a saw to it (saw blades can also make average temporary parting tools).
Though very nice piston, what's it for? (a cannon obviously)
Posted: Tue May 19, 2009 5:03 am
by CasinoVanart
Nice work considering the belt was weed eater line!!
Re: Bored on a Friday night...
Posted: Tue May 19, 2009 6:24 am
by Technician1002
jmccalip wrote:So I made this. UHMW 3" piston. 10 and 3/4 oz.
That's sweet. Can't wait to see the video of the finished cannon. One quick question, what is the valve seat size going to be? 2 inch, 2.5 inch?