Author Topic: Picco rim sprockets  (Read 797 times)

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Offline SquareFile

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Picco rim sprockets
« on: August 15, 2015, 06:16:49 am »
I've had good gains in cutting speed using Stihl PS chain on 50cc saws. Thought I'd share on a mod that helped on small hub saws. I machined mini hub rims to fit small hub.





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Offline Cut4fun .

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Re: Picco rim sprockets
« Reply #1 on: August 15, 2015, 10:27:48 am »
Great idea.

That is so cool you can do that type of stuff. 
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Offline Eccentric

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Re: Picco rim sprockets
« Reply #2 on: August 15, 2015, 04:00:47 pm »
There'd be a market for those modified P-7 and P-8 rims if you decide to do a small production run of 'em.  I'd be down for a few.
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

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Re: Picco rim sprockets
« Reply #3 on: August 15, 2015, 06:01:44 pm »
That is a great idea.   Nice work.
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Offline HolmenTree

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Re: Picco rim sprockets
« Reply #4 on: August 17, 2015, 08:45:51 am »
Excellent market potential 8)
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Offline SquareFile

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Re: Picco rim sprockets
« Reply #5 on: August 17, 2015, 11:00:17 am »
Stihl picco rims are extremely hard. I can't modify them in a cost effective manner. I did notice Forester manufactures P-7 which I'm sure is softer.

Offline fisaw

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Re: Picco rim sprockets
« Reply #6 on: August 19, 2015, 12:28:50 pm »
Nice mod

Online Philbert

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Re: Picco rim sprockets
« Reply #7 on: August 19, 2015, 02:11:12 pm »
I machined mini hub rims to fit small hub.
Mill?  Drill press? Hole saw? Rat-tail file? . . . . .

Inquiring minds want to know!

Philbert

Offline Nathaniel Vansickle

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Re: Picco rim sprockets
« Reply #8 on: August 19, 2015, 03:44:47 pm »
Stihl picco rims are extremely hard. I can't modify them in a cost effective manner. I did notice Forester manufactures P-7 which I'm sure is softer.

seems to me i bought some of the "mini" spline forester rims once and they were small spline not the mini they were advertised as.
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Offline Cut4fun .

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Re: Picco rim sprockets
« Reply #9 on: August 19, 2015, 04:22:35 pm »
Stihl picco rims are extremely hard. I can't modify them in a cost effective manner. I did notice Forester manufactures P-7 which I'm sure is softer.

seems to me i bought some of the "mini" spline forester rims once and they were small spline not the mini they were advertised as.

IMO thats a good thing. Already small.
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