Machining for port work

[paragonbuilder]

Sounds like you might be coming down with a case of MAD?

[emoji23] I hate labels. But I don't seem to mind labeling myself with CAD. I think MAD is ok too!

 

[awol]

Boring head and rotary table included also. Here is a cheap set of collets for it.
http://www.ebay.com/itm/11-PIECE-BR...910208?hash=item51cefb0c80:g:el0AAOSwYHxWKmwj

 

[huskihl]

[emoji23] I hate labels. But I don't seem to mind labeling myself with CAD. I think MAD is ok too!

I concur. There are many worse habits nowadays

 

[paragonbuilder]

Boring head and rotary table included also. Here is a cheap set of collets for it.
http://www.ebay.com/itm/11-PIECE-BR...910208?hash=item51cefb0c80:g:el0AAOSwYHxWKmwj

They are in my watch list now! Thanks!

 

[Deets066]

Tolerance debates end up like "best builder" debates.

Build the best saw you can build, if it dosent work out the only one to blame is yourself.

Lots of good saws have been built with sub par equipment, and less than ideal conditions.

Now to keep this some what on track,
Deets066 looks as if you can mount the rotary table on end (vertical) if so get/make a tail stock and you now have a lathe to turn mandrel's

Like this one?

This thread is on track, it's all about machining and where ever it trails off to

 

[Deets066]

I plan on making 2 mandrels. 54 and 52 mm. Those are the most common ones I use. I wanted to be able to do it in the mill as well so I didn't have to make a mandrel for every jug I do

 

[jmssaws]

I only cut squish by hand.
Awesome thread deeter

 

[super3]

I can't remember who came up with this but, I thought it was a great idea.

 

[paragonbuilder]

I can't remember who came up with this but, I thought it was a great idea.

View attachment 13143

@wcorey

 

[MG2186]

Don't ever think those old Bridgeports won't cut accurately .Those things to hot rodders and engine builders are what a model '94 Winchester is to a deer hunting rifle .

Mine by the way has a brass tag that says Mall Tool Company .Might have milled parts for huge old chainsaws of a bygone era for all I know .

Something like an imported CNC mill or lathe might be good for a small job shop to the tune of 60 g's .However for one of stuff the average good machinest will have it done on a good manual machine before a CNC guy figured out how to get the damned thing even programmed

You got that right! The older guy that builds our pulling parts has all older non CNC equipment and his work is second to none and he says the same thing. CNC machines were designed for production work not one off odd ball stuff


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[ctylerc1995]

I once read a book about machining a few years back, it was printed in 1990, I'll try to find it. It touched on the factory in VA beach. Then, STIHL's tolerances were 1/100MM (0.0004") I'm sure they have only gotten tighter, however I don't see it as that important for a cylinder base.

As far as tooling, I hate to give up my source you guys gotta promise not to run the prices up, but here it is: http://www.hoffonlineauctions.com
Going cheap on new tooling is a bad idea, but hoff has a lot of great deals on used stuff.
I've filled up two 40' shipping containers with machine tooling from them, and have made out like a bandit on most of it.
It takes a while toget it, and account set up is a PITA, but well worth it.

I'd use something like this to mill squish band, not a boring head.

@paragonbuilder if you end up with that mill shoot me a PM, I'm 50% sure that I'd have a NOS set of #9 BS collets, and 99% sure I'd have a set of good used ones.

Edit: http://www.hoffonlineauctions.net/cgi-bin/mnlist.cgi?hoff49/6
There's a vert-horz table, probably go cheap.

 

[Al Smith]

Yes modern practices have the parts within microns which are 1/10000 of a mm. Probably 15 either way .

No matter though because you don't need "Swiss watch" parts fits on chainsaws .

 

[Moparmyway]

I got zero runout (using 0.0005 test indicator) on this one after I aligned the tailstock to the spindle. South Bend 9C-10JR, built in 1942

 

[paragonbuilder]

I once read a book about machining a few years back, it was printed in 1990, I'll try to find it. It touched on the factory in VA beach. Then, STIHL's tolerances were 1/100MM (0.0004") I'm sure they have only gotten tighter, however I don't see it as that important for a cylinder base.

As far as tooling, I hate to give up my source you guys gotta promise not to run the prices up, but here it is: http://www.hoffonlineauctions.com
Going cheap on new tooling is a bad idea, but hoff has a lot of great deals on used stuff.
I've filled up two 40' shipping containers with machine tooling from them, and have made out like a bandit on most of it.
It takes a while toget it, and account set up is a PITA, but well worth it.

I'd use something like this to mill squish band, not a boring head.
View attachment 13152
@paragonbuilder if you end up with that mill shoot me a PM, I'm 50% sure that I'd have a NOS set of #9 BS collets, and 99% sure I'd have a set of good used ones.

Edit: http://www.hoffonlineauctions.net/cgi-bin/mnlist.cgi?hoff49/6
There's a vert-horz table, probably go cheap.

Awesome! I will, thank you!


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[Red97]

Have you looked for 54 and 56mm bits?

Be pretty simple and fast to clamp the 94 cylinder level and run a 56mm bit down its throat.

Get well soon plating...

52mm jug

 

[jmssaws]

Get well soon plating...

52mm jug

That's what I'm talking about!

 

[Rains]

Great thread Hope to see you get this going Deets

 

[Deets066]

I've got an 046 D jug on the way, that will be my first real victim.

After I test on a junk one of coarse!

 

[paragonbuilder]

Damn. Them mill I was hoping to get is sold... On the prowl again.


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[Al Smith]

FWIW that Monarch 10EE I have will cut about half a thou taper in 18" using a collett with a dead center in the tail stock .I figured that's good enough .