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Sloughfoot

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I heard when I was a kid ( 60 yrs ago ) dont go to resturants that arent busy- the best ones are always packed. I thought one of many good ways to tell who to send your saw to for porting is find out how long their wait time / list is. The guy I send mine to here on the forum in michigan is usually six monts ++ out. I think thats a pretty good sign if your looking to get one done. I am very happy with his work and post purchase help.
"Nobody goes there anymore, it's too crowded" - Yogi Berra

I go by how crowded and the demographic. Asian place full of Asians or Mexican full of Mexicans it's probably pretty good. Any restaurant full of retirees usually isn't.
 

IffykidMn

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"Nobody goes there anymore, it's too crowded" - Yogi Berra

I go by how crowded and the demographic. Asian place full of Asians or Mexican full of Mexicans it's probably pretty good. Any restaurant full of retirees usually isn't.
Debating if this is one of those age discrimination or a racist comment both or just don't give a Rip<pun :stick: :meparto:
 

Jusgunn3

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I think the verdict is out haha. I read a bit about them and its 90% negative, trying to be to commercial and quality goes down it seems. At least with this kind of aftermarket chainsaw work. I will only have my saws ported by the fine folks on this here forum, or folks that have built saws I have ran.
 

EFSM

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I think that the CNC porting idea is fantastic, but it should be implemented by someone who has become an expert first at porting using the traditional methods first. It’s a little like our Franzen chain sharpener. It’s a great tool that is useless in the hands of someone who has no idea what a sharp chain looks like.
 

huskihl

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I think that the CNC porting idea is fantastic, but it should be implemented by someone who has become an expert first at porting using the traditional methods first. It’s a little like our Franzen chain sharpener. It’s a great tool that is useless in the hands of someone who has no idea what a sharp chain looks like.
Too many people fall for the supposed “perfection and repeatability” with cnc. It’s a great idea if they actually found a good solid performing recipe.
 

EFSM

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Too many people fall for the supposed “perfection and repeatability” with cnc. It’s a great idea if they actually found a good solid performing recipe.
I think it would be especially fitting for a perfectly shaped and centered exhaust port. I wonder if there is a CNC machine with a small enough head to fit into the cylinder for transfer ports.
 

huskihl

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I think it would be especially fitting for a perfectly shaped and centered exhaust port. I wonder if there is a CNC machine with a small enough head to fit into the cylinder for transfer ports.
Ripsaw ports the 2511 cylinders on a CNC. Customer sent me one to compare to one of mine and improve upon it if I could. The exhaust was raised too much for me to be willing to mess with it and the top of the arch was 2mm off centered from the new location. So their CNC raised the center of the exhaust, and then widened it 1MM on one side and 3MM and the other side. That will raise hell with the ring location pins because one end of the ring is being hammered back in quicker than the other. Their cylinder with an Egan pipe ran about 20% faster than stock
 

EFSM

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Ripsaw ports the 2511 cylinders on a CNC. Customer sent me one to compare to one of mine and improve upon it if I could. The exhaust was raised too much for me to be willing to mess with it and the top of the arch was 2mm off centered from the new location. So their CNC raised the center of the exhaust, and then widened it 1MM on one side and 3MM and the other side. That will raise hell with the ring location pins because one end of the ring is being hammered back in quicker than the other. Their cylinder with an Egan pipe ran about 20% faster than stock
As someone with no CNC experience, I would not feel satisfied with that. However, centering the exhaust roof is something I struggle perfecting to my satisfaction. Do you have any tips?
 
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