I spent a few days changing to a T-slot waste board like Charlie Thomas has and adding Roberts little plates to the Y axis for stiffening, good job Robert! After I screwed everything down I put a straight edge on each board an and I have a low place about mid ways front to back of about .006 to .008. I have a bit, i think it’s an inch or an inch and a half. Should I surface each board individually or just cut them all at once like it’s a regular one piece board?
Personally, I would leave it. That’s pretty good. If you need greater precision, you would flatten a sacrificial waste board and then fasten your work piece on top of that. Within a few weeks your measurements will change anyway. So this is a good practice. Also, it’s a good idea to check in with folks whose advice you are following before committing… just in case the time/benefit is no longer there for them.
It depends on what you will be machining and what accuracy you need. I’ve seen someone from Inventables mention that 0.003" is about the best accuracy of the stock system.
I’ll be cutting mostly 1/8" birch, i may in the near future try my hand at some 1/4 in aluminum or 3/8s material i need a dust boot badly.
Honestly, you’re not likely to get exponentially better than that.
I usually just put a piece of hardboard under my work and cut deeper then the wood for a cleaner cut anyway. Doing that makes slight differences in depth less meaningful.
I changed the base for 20 mm x 40 mm rails and added an extra one in the middle to prevent bowing did the side plates and it is still a bit off I would pull all of the t slots and level the waste board (with a real waste board bit) if you need to get it dead flat then put the slot track back in. I removed all the slot tracks and went strictly to tape and ca under 12 x 12 and screw directly down over that.
I’m going to put my dial indicator on and make sure of my measurements then I’ll make a few cuts and see. Thanks for all of the inputs guys I appreciate each and every one
How do you do it, each plank or all at once?
thanks a lot!