Originally Posted by nitrobeast
I wanna get a carbide bit for my truer. Does anyone know how to calibrate it after?
I put a hudy blade in my ofna. The problem is the hudy blades mounts closer to the tire than my original jig saw blade. There is no way to calibrated the Ofna/Integy truers. To correct this; I milled the face of my blade holder. I had to take off about 2.3 mm. I also had to mill the slot that the blade slides into. I replaced the knob that adjusted the blade in and out with a RD logic knob,because it has a rotary scale. Once set my truer is accurate with .1 mm.
You also have to look at how you true your tires. If you whack off 3mm at a time the tire generates so much heat; that your final cut size probally won't be accurate. I get my tires close to the final size and then do small cuts from there. Also the shore rating of the tire slightly changes my reading also.
Also the speed at which the tire spins will effect the accuracy of your cut.
If you search the web Josh Cyrul did a nice article with one of the RC mags on how to correctly true foam tires