Need advice on plunge router cutting on 3\16" masonite hardboard
Hi, Iím really a noob when it comes to knowing all there is to about routing. I just know how to do my specific task but donít know why I started getting this particular problem. I frequently cut out shapes on 3/16Ē masonite board (squares, circles, hearts) Iíve only been doing it for a couple months and I use a makita 3612 plunge router with a Freud1/4-Inch Diameter 2-Flute Down Spiral bit.
Now I ussually route over a spoil board and clamp the masonite down. I ussually will cut out everything in one pass. Lately Iíve been noticing that the cuts arenít coming out as clean in the sense there is this papery residue left around the edges which I have to scrub off with a towel. (I canít sand it because I need the surface of the masonite to stay smooth)
My question is, is it time to replace my bit already? Iíve only had it for 2 and half months and I paid 20 bucks for that thing. Or maybe its the masonite Iím buying, or is it just my technique of cutting? Any pointers? I just noticed it happening recently.