|Forum topic by jonwright||posted 42 days ago||599 views||0 times favorited||10 replies|
42 days ago
I’ve seen tear-out on a planer, but this is a blow out. Gouged and split a few inches of the wood, in the grain.
So I’m routing a 6’ arch in a single piece of poplar board. I’ve cut a template of the arch I wish to use out of 1/2” MDF. I was using a flush trim bit (1/2” diameter). You can see the orientation of the router and the pic below.
For the right side of the board I went against the direction of the bit spin. on the LEFT side on the board I was moving left to right with the spin – that seemed at the end of the board to offer the cleanest cut.
But looks to be like the blade grabbed the wood instead of cutting it. I was taking out less than 1/8” at the top of the arch there where it blew out.
So what’s up? Should I have used a larger diameter bit? Is this an instance where I was using the bearing on the bottom and flipped the board over for the left side of the board so that I could run the bit in the opposite direction so that the cut is going against the grain near the middle of the board (where the cut is almost parallel?)
Go to store and get carpet tape and just flip it over with bottom bearing trim bit? What do you guys do for trim routing like this with arches in solid wood?
No, MDF isn’t an option here for the final product as this is a trim piece of wood for a saltwater aquarium stand. MDF would dissolve in no time from the salt water.
Another shot below: