lucas slabbing attachment

**charlsie** · 19th December 2008, 07:29 AM

i had dj drop into my place the other night and we were discussing the same thing, he files his by hand and i use my chain grinder.I'm going to try to get up to his place over xmas and try one of his chains against mine.I make my own chains out of stihl 36 RMX .First i turn it into a 7 skip chain and use the factory setting angles,(cuts great like all new chains) .Once its blunt i bring the cutting angle back to 15 degrees and 10 degrees forward or back depending on which tooth i'm sharpening as for rakers if the slabber is moving to slowly file them down a bit to speed things up. i'll certainly try filing them differently and see how that goes.another point is washboarding,i dont get much of it and but i dont know if this is from less agressive filing angles or rakers not being taken down a great deal. all i know is if the chain isnt sharp i'm pushing to much and i dont like it .the other thing is i like to have two people on the slabber so the bar is getting even pressure over its entire length which seems to help. I was watching some bloke on a morning show years ago and he only took 11 swipes with the blade to shave and whats wrong with remembering a few numbers but i think there might be a pattern emerging with people who own portable sawmills . a little bit scary heh

**BobL** · 19th December 2008, 09:38 AM

Originally Posted by matildasmate

Smart blokes just get a proper depth gage measurer , like the Carlton file o plate . Cheers MM

Yep Fileoplates do allow for constant cutting angle than constant raking height.

I see Husky also have a similar product.

The Oregon type ones you have to buy in a range of sizes (.025", .030", .040", .050" or .060") to accomodate the changing height.

The problem with these is they don't have any 0.035 of 0.045" sizes.

**BobL** · 19th December 2008, 10:12 AM

Originally Posted by charlsie

i . . . . . Once its blunt . . . .

I prefer to avoid letting any chain get blunt. As soon as I can see glinting on an edge my chain(s) get a touch up. Sure the chain gets used up quicker but blunt chains damage bars and sprockets, and put more load than necessary on the engine and the operator so it probably evens out financially in the long run..

Originally Posted by charlsie

.another point is washboarding,i dont get much of it and but i dont know if this is from less agressive filing angles or rakers not being taken down a great deal. all i know is if the chain isnt sharp i'm pushing to much and i dont like it .the other thing is i like to have two people on the slabber so the bar is getting even pressure over its entire length which seems to help.

Wasboarding is definitely affected by cutter top plat angle. The higher the angle the more washboard will be generated. High cutting angles make it easier to slice endgrain but in doing so generate increased sideways pressures which makes the washboard. Also it depends on cutting speed - in soft/green wood it generates the pattern on the left.

**weisyboy** · 19th December 2008, 05:47 PM

so i got a phone call from lucas today making sure all was well boy there customer service is good.

i will check the rakers when i get time.

the chain that allan put up dose cut well i did a test a wile back as some may remember it performed better than single skip chain regardless of angle.

why not try it if its no good the scoring cutters can be cut off leaving a single skip chain.

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