Larry Prince
02-03-2009, 7:27 PM
I'm no stranger to this jig and have had good results with it in the past, but it seems the more time I spend with it the worse my joints get, so here's the particulars:
I'm using a pair of Triton 2-1/4HP routers, with see-thru bases by Pat Warner, and the bases are drilled to accept the brass PC type guide bushings sold by Leigh. (More specifically, they were CNC-cut by Pat).
To describe the problem, picture an assembled joint, looking at it towards the tails board. The first tail fits tight on its left edge but has a large gap on its right edge. The second tail fits tight. The third tail has large gaps on both its edges. The 4th tail has a large gap on its left edge and fits tightly on it's right.
Read first to fourth from left to right.
The material being cut is 5/8" poplar.
I really dont think it's the jig itself, but rather something to do with the routers, and something is moving when it shouldn't. I've double checked that the guide bush is tight in the base, and the base is tight to the router. The guide bush is as centered on the bit as I can make it by eye.
So the questions are: Do any of you have a clue as to what might be happening here? What Should I be looking for? What can I do to make sure the pins/tails all come out to the proper size and spacing?
At the moment I'm completly stumped since I've had good luck in the past and I'm always meticulous with the setups. Any advice will be greatly appreciated.
I'm using a pair of Triton 2-1/4HP routers, with see-thru bases by Pat Warner, and the bases are drilled to accept the brass PC type guide bushings sold by Leigh. (More specifically, they were CNC-cut by Pat).
To describe the problem, picture an assembled joint, looking at it towards the tails board. The first tail fits tight on its left edge but has a large gap on its right edge. The second tail fits tight. The third tail has large gaps on both its edges. The 4th tail has a large gap on its left edge and fits tightly on it's right.
Read first to fourth from left to right.
The material being cut is 5/8" poplar.
I really dont think it's the jig itself, but rather something to do with the routers, and something is moving when it shouldn't. I've double checked that the guide bush is tight in the base, and the base is tight to the router. The guide bush is as centered on the bit as I can make it by eye.
So the questions are: Do any of you have a clue as to what might be happening here? What Should I be looking for? What can I do to make sure the pins/tails all come out to the proper size and spacing?
At the moment I'm completly stumped since I've had good luck in the past and I'm always meticulous with the setups. Any advice will be greatly appreciated.