1922 south bend 9'' lathe restore ......New stuff

**SWIGIN** · 03-10-2009, 09:20 PM

i got my live center done, man is this thing nice to work with.

i never did like dead centers and never really used them before....what a PITA

i bought a bearing and pressed it into the body then i made a few different tips tonight.

**thefox** · 03-10-2009, 09:29 PM

So are you taking orders for trike parts yet, I could use some swing arm pivot bolts for the YT/YTM suspension kits...... lol

It looks great! Now if you can't find it, build it!

**SWIGIN** · 03-10-2009, 09:44 PM

we could maybe work something out.

that kind of thing is about the perfect size to do on this lathe.

tonight i also had a xr500 sleeve chucked up in my lathe to be shortened to fit in a 350 cly.......it's done but it was a little large....lol

**thefox** · 03-10-2009, 10:18 PM

I will defiantly keep you in mind but it will probably be a couple of weeks. I have to finish drawing up the brackets and send the file to have them cut then check with the fabricator we use a work to see if he can bend some tube for me. It will probably be turned down to a 3/4" shaft with ends turned down and threaded to 12 mm.

**honda250sx** · 03-12-2009, 10:45 PM

Wayne. If you use that center, get some high pressure lube. You dont want to weld that guy into your work piece. McMaster Carr has it. Check it out. I highly recommend it.

**The Goat** · 03-12-2009, 11:16 PM

hey swigin...if you didn't want to get the rod extended from powroll, but did want to run the xr500 cylinder, could you not only cut the cylinder, but have the piston cut as well...rather than run that spacer plate?

**SWIGIN** · 03-13-2009, 06:52 AM

Originally Posted by honda250sx

Wayne. If you use that center, get some high pressure lube. You dont want to weld that guy into your work piece. McMaster Carr has it. Check it out. I highly recommend it.

no lube needed man, well there is greese in the bearing.

i seized a dead center in a work peice last week....thats why i made this live center.....the tip spins with the work peice.

**SWIGIN** · 03-13-2009, 07:04 AM

Originally Posted by The Goat

hey swigin...if you didn't want to get the rod extended from powroll, but did want to run the xr500 cylinder, could you not only cut the cylinder, but have the piston cut as well...rather than run that spacer plate?

wow goat, put the peice pipe down my man.....lol

i think you wanted my ascot thread. your thinking backwards, the rod needs shrunk but yeah i do think that you can shave the piston dome and shape the combustion chamber of a stock head enough.

just remember DO NOT get a xr500 12:1 piston

being higher it just makes it worse

**honda250sx** · 03-13-2009, 09:52 AM

Originally Posted by SWIGIN

no lube needed man, well there is greese in the bearing.

i seized a dead center in a work peice last week....thats why i made this live center.....the tip spins with the work peice.

Contrary to popular belief, it can be done. Just advice. Looking out for ya buddy

**SWIGIN** · 03-13-2009, 09:56 AM

true, if for some reason the bearing would seize the tip would need lube.

**honda250sx** · 03-13-2009, 10:06 AM

Well mostly happens in high speed, DEEP depths of cut.

**SWIGIN** · 03-13-2009, 10:14 AM

oh i see, tons of load on the bearing can cause the tip to stop.

as im shure you know these old lathes spin slow compared to modern machines (to slow in my opinion) and large cuts are impossible.

largest cut i can get on steel is .015 or so....and at that depth it looks terrible.

the spindle to saddle speed ratio is off for todays fast cutting tips it seems.

**honda250sx** · 03-13-2009, 10:30 AM

Yes it is nearly impossible to obtain speed and feeds that carbide and high end tooling require on these old dinosaurs.

you should buy your self a nice used book on ebay on cutter and tool grinding. You should be designing your own high speed steel cutters from blanks. They can be bought in 1/4 and 1/2 blanks.

I dig thru some old docs and look

**SWIGIN** · 03-13-2009, 03:05 PM

i used to grind them back in metal shop days and i have a few new blanks and a pile of HSS tips.....but then i cant use my cool tool holder...lol

my indexable inserts are only rated C2 (brass aluminum) i got some decent ones coming from MSC.

as long as i can make a half way decent looking cut in steel i'll be happy. and once i get a 3/4hp motor i'll be able to gear it up a good bit.

**The Goat** · 03-17-2009, 06:12 PM

Originally Posted by SWIGIN

wow goat, put the peice pipe down my man.....lol

i think you wanted my ascot thread. your thinking backwards, the rod needs shrunk but yeah i do think that you can shave the piston dome and shape the combustion chamber of a stock head enough.

just remember DO NOT get a xr500 12:1 piston

being higher it just makes it worse

lol....no peace pipe...I was actually thinking that your lathe would make short work of that.

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