Machining for port work

[Moparmyway]

I know you've clamped on the fins before Kev, I just couldn't get the run out past .03

It was sitting canted then, I've had to grind and/or shim the top to true it straight in the jaws on a few

 

[big t double]

Nice job Keith! Looks nice.

Who's Keith?

 

[Deets066]

Who's Keith?

 

[Mastermind]

I like soft jaws.

 

[old 040]

I like soft jaws.

Yep, they give less bite!!

 

[Mastermind]

Yep, they give less bite!!

Repped

 

[Deets066]

I like soft jaws.

Like this dude?

 

[old 040]

 

[Deets066]

View attachment 22308

 

[old 040]

I don't know.....We'll have to see what Randy thinks.........

 

[Kevin White]

Picked up a lathe finally! Just joined this forum from AnotherSite and been doing alot of reading and have ported many saws with success. My next step was a lathe.

Thanks to advice from Randy, I swung over to a Craigslist find and snatched it up. Its an old Craftsman/Atlas. Looks like from center to the bottom of the table is 3 inches. Should work for what we do. Let me know what you think! I paid 400. Also, not sure of all the tooling but im learning. Now i just need some blanks to make mandrels, and some aluminum blanks for cylinder mounting. Anyone got a good source?

 

[Kevin White]

 

[srcarr52]

I buy drop pieces of round stock off eBay. You can get it for 1/2 the cost of new. And they are small enough pieces they fit in a flat rate box so shipping is cheap.

 

[mdavlee]

View attachment 22645 View attachment 22646

How far down in Appalachia are you?

 

[Tractorsaw1]

I milled the base of an 084 cylinder with toe clamps right on the table using a 3" face mill. If there's a will there's a way. I clamped the base down first & machined the top some to have a flat face to sit on. Flipped it over & toe clamped the exhaust & intake port. It can be done. I like what you have going on here a little better.

 

[Deets066]

I milled the base of an 084 cylinder with toe clamps right on the table using a 3" face mill. If there's a will there's a way. I clamped the base down first & machined the top some to have a flat face to sit on. Flipped it over & toe clamped the exhaust & intake port. It can be done. I like what you have going on here a little better.

That does work, just hard to get em perfect. And takes quite a bit more time

 

[Kevin White]

How far down in Appalachia are you?

Im in Giles County about an hour from Roanoke, an hour from the WV border and 2 hours from the NC border

 

[mdavlee]

Im in Giles County about an hour from Roanoke, an hour from the WV border and 2 hours from the NC border

Few hours up from me.

 

[Stihlbro]

Im in Giles County about an hour from Roanoke, an hour from the WV border and 2 hours from the NC border

I am in Craig County. How close are you to rt 42?

 

[Al Smith]

The "Bush Weasel" had one of those table top Atlas lathes .I think it was 6 by 18 .I sent him a bunch of tiny little 0 or number one tool holders and 1/4" high speed steel blanks .Plus a few other tiny tid bits from a lathe I had for about 2 weeks and sold .

He some how managed to turn down cylinder bases with it .I think I had about 200 in it .