rscrawford wrote:What kind of hold down do you have? Cutting full depth on 1" MDF creates a lot of pull upwards on your workpiece, and you could end up losing hold down if you rely on a vacuum spoilboard system.
Using a 3/8" compression bit seems to work the best with MDF. Single pass, and the chips packing in the kerf helps with vacuum hold down. I just cut 8 sheets of 3/4" and used 16000rpm and 600ipm single pass with a 3/8" compression.
I typically use a 1/2" compression, one pass. I guess it's a toss-up. I can either spend time cleaning the table of sawdust, or get less dust and spend the time sanding off tabs.
I made me a dustboot out of some flexible PVC freezer room door material I found. Made me a tool path that zig-zags across the entire table. Problem solved.