Join Date: Dec 2011
Location: Morris County, New Joisey
Using a drill press mortising attachment
I'm making a small Mission-style table with through-tenons where the lower stretchers go into the legs. I'm using my drill press with the Delta mortising attachment, which I've never used for a real project, only for testing to see how it worked.
I made the mortises last night, and wasn't real happy with the process, although they should be OK. I'm using the 1/2" chisel/bit set, and it seemed to take a LOT of pressure to force through the wood. (Red oak) Shortly into the cut, I got lots of smoke! I had the press set to around 1000 rpm, so lowered it to 600 for the next cuts, but still seemed to get a lot of overheating.
Is this normal, or am I doing something wrong? The chisel set is either brand new, or used once when I played around with the thing a while ago. I set the chisel to allow about 1/32" clearance for the bit, per the instructions.
I'm thinking next time I may drill out the mortises & square the ends of the holes with a chisel.
Any suggestions would be welcome! I'm cutting the tenons on the table saw today, and hoping for that process to go somewhat better.