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Post by sweepleader on Jan 17, 2019 20:26:51 GMT -5
A neighbor friend is making a big (huge) compass with a chainsaw on the end of it to cut a 40 foot circle in the lake ice. It will make a disc that can rotate when a hole is drilled at the edge and an outboard motor is mounted there to spin it.
I made a bracket that replaces the clutch cover and can be mounted to the wooden arm of the compass.
The saw he has is a brand "S", I should have noted the model I suppose. It is a pretty good sized saw with a 24" bar.
I found an article from the Army Corps of Engineers on sawing ice using a Homelite 550, written in the 80's. They used a skip tooth chain and lowered the rakers 1/16". There was quite a bit of data but the only mod they really tested was that raker thing.
I also found several threads over at AS but all the info was hearsay, no data. I could find nothing else on the subject in several hours of searching.
Years ago I modified a wood auger bit to drill ice, it wound up very different from what it was when it was sharpened for wood. The "cutting" edge was almost 90 degrees to the axis of the bit and mostly scraped the ice rather than shaving like with wood. It drilled like crazy.
Anyone have any other information regarding modifying a chain to cut better in ice?
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Post by kysawman on Jan 19, 2019 9:28:00 GMT -5
We cut ice all the time in Alaska growing up trapping beavers. Dad would run a hard nose bar and he would grind the rakers down. Seems he took them half off. Sounds like a neat project making the compass.
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Post by rowdy235 on Jan 19, 2019 18:47:04 GMT -5
I cut ice a couple times with just a regular bar/chain, was pretty slow but worked.
I would recommend using a different kind of B/C oil, mine made lots of pretty rainbows but pry not great for the environment lol
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Post by sweepleader on Jan 19, 2019 19:55:56 GMT -5
I would recommend using a different kind of B/C oil, mine made lots of pretty rainbows but pry not great for the environment lol Yeah, he is going to use vegetable oil for that reason. The Corps of Engineers article suggested that idea. I was surprised that they cared enough to even think of it but I guess it was becoming more thought of in the 80's when the article was written.
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Post by rowdy235 on Jan 19, 2019 23:06:41 GMT -5
I would recommend using a different kind of B/C oil, mine made lots of pretty rainbows but pry not great for the environment lol Yeah, he is going to use vegetable oil for that reason. The Corps of Engineers article suggested that idea. I was surprised that they cared enough to even think of it but I guess it was becoming more thought of in the 80's when the article was written. I am a bit surprised as well but a good idea. Many wave pools use vegetable oil in lieu of hydraulic fluid for their wave systems for a similar reason.
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Post by rarefish383 on Mar 2, 2019 20:25:48 GMT -5
In the mid 70’s, the top fuel cars changed their oil after every pass, and dumped it on the fence line to keep the poison ivy from coming over.
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