Frank Rotondo
02-03-2016, 1:56 PM
I'm having a problem with my shopfox w1684 Jointer. I'm not getting a satisfactory cut with this machine as I did when it was first in operation (taper instead of a flat face and a lot of chatter when the cutter contacts the blades). I started doing some checking using a Oneway fixture with a spherical ball attached and the Veritas 50" straight edge. I am using T-1 HSS Titan blades bought from an on line supplier.
The axis of the cutter head is .002 low on the op. side but the blades are all within .000/.0015+ (total) of parallel with the outfeed table. Using the straightedge what I found was that the tables are out of plane. It appears that the end of each table is up from the center. When I have the infeed table up .010 from the outfeed and have the straightedge on the infeed and set to cover most of the outfeed I can get .010 under at the cutter but as I move out it gets tight and I can't get .009 under the far end. When I run .009 under the straightedge from the cutter out you can hear it snap out from under the end of the s'edge. When I reverse that operation and set the infeed .010 lower than the outfeed I get the same results on the infeed table at the end away from the cutter.
Now here is the mystery part. When I have the infeed and outfeed set at zero with the dial indicator and lay the straight edge equally across both tables they appear to flat and on the same plane. I say that because I can't even get .0015 (thinnest I have) under any part of the straightedge.
I think what I have to do is shim the outfeed table under the gibs nearest the cutter so that it is on the same plane as the infeed table. I say I think because I'm looking for some reassurance I'm reading this right.
Finally what is the best angle for Jointer knives? 45 degrees? Or is there a best angle? I have read some pieces that some use different angles for different wood. I mostly run rough sawn soft maple and cypress and joint and plane to thickness.
Any help will be appreciated!
The axis of the cutter head is .002 low on the op. side but the blades are all within .000/.0015+ (total) of parallel with the outfeed table. Using the straightedge what I found was that the tables are out of plane. It appears that the end of each table is up from the center. When I have the infeed table up .010 from the outfeed and have the straightedge on the infeed and set to cover most of the outfeed I can get .010 under at the cutter but as I move out it gets tight and I can't get .009 under the far end. When I run .009 under the straightedge from the cutter out you can hear it snap out from under the end of the s'edge. When I reverse that operation and set the infeed .010 lower than the outfeed I get the same results on the infeed table at the end away from the cutter.
Now here is the mystery part. When I have the infeed and outfeed set at zero with the dial indicator and lay the straight edge equally across both tables they appear to flat and on the same plane. I say that because I can't even get .0015 (thinnest I have) under any part of the straightedge.
I think what I have to do is shim the outfeed table under the gibs nearest the cutter so that it is on the same plane as the infeed table. I say I think because I'm looking for some reassurance I'm reading this right.
Finally what is the best angle for Jointer knives? 45 degrees? Or is there a best angle? I have read some pieces that some use different angles for different wood. I mostly run rough sawn soft maple and cypress and joint and plane to thickness.
Any help will be appreciated!