218 - Installing a Segmented Cutterhead in a Jointer







Segmented cutterheads have gotten fairly well-liked nowadays however most instruments include conventional straight knives. So it’s very possible that sooner or later you’ll be trying to improve to a segmented head, and fortunately you don’t should buy a completely new machine. As an alternative, you possibly can simply swap out the cutterhead for a new one. The method isn’t all that troublesome and this video exhibits you each step as they pertain to a Byrd SHELIX cutterhead and a Powermatic PJ882 eight″ Jointer. Whereas your specific model of device might range in the effective particulars, the idea is identical and I hope this demystifies the method for you.


straight-knife-cutterheadsegmented-cutterhead

Is it Well worth the Improve?


As with something, it is determined by your state of affairs. However I can say with out hesitation that this type of improve is certainly not a necessity. Individuals have been utilizing straight knives for years with nice outcomes and since most are made out of excessive velocity metal, the preliminary leading edge can truly be “sharper” than the carbide inserts discovered in segmented heads. However a segmented cutterhead, extra particularly the SHELIX cutterhead, brings some good advantages to the social gathering that would make it value your consideration:


Minimize High quality – When you ought to by no means anticipate end-prepared surfaces from any jointer, I discover the segmented head produces clean outcomes for a lengthy time period. Straight knives are able to producing an extremely clean floor when freshly sharpened, however I discover they shortly lose their edge. The carbide inserts of the segmented head begin sharp and keep that means for a very very long time. As well as, the shearing motion afforded by the helical design yields a probably cleaner cut; a main profit on extremely figured woods or boards with temperamental grain. There’s nothing worse than getting a bunch of tearout on a prized piece of figured inventory, understanding you’ll should waste a further 1/eight″ in thickness simply eliminating the floor flaws. Hold in thoughts that the “shearing motion” I point out just isn"t one thing you’ll discover on each segmented cutterhead. Some cutterheads have inserts that strategy the wood head-on in order that’s one thing to search for.


Comfort – Up to now I despatched my jointer knives out for sharpening about as soon as per yr. The fee wasn’t too dangerous however getting the knives set correctly in the cutterhead after the very fact was a big headache. I truthfully dreaded the expertise. With a segmented cutterhead, the carbide inserts are pre-listed and by no means transfer. So changing them is so simple as loosening a screw, eradicating the insert, dropping a new insert in, and tightening the screw. Moreover, every insert has 4 sides so all you could do to show a model new sharp edge is rotate the insert ninety levels. You may discover it fascinating that I’ve been utilizing a segmented cutterhead in my planer for about three years now and I"ve but to show the inserts even as soon as.


decibels-afterNoise Discount – The design of a segmented cutterhead outcomes in a lot much less noise, primarily as a result of there’s much less metallic making contact with the wood at anybody time. And with the helical shearing motion, the inserts are approaching the wood at a slight angle which suggests even much less metallic comes in contact with the wood directly. My checks in the store confirmed a roughly 20 dB discount in noise degree whereas jointing.


I"m extremely proud of the outcomes of the brand new segmented cutterhead and since I work with plenty of unique and figured wood, I really feel it was a sensible improve. I ought to point out that in case you’re in the marketplace for a cutterhead improve, contemplate your planer first. Since most of my boards will move via the planer on each side as a final step in inventory preparation, I really feel it’s extra necessary for the planer to supply the smoothest cut potential. The jointer can be the secondary improve.


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