Replies

1. 
   RANGERP75R | Apr 11, 2003 07:31pm | #1

   Ken

      Glad you found the solution. ha..ha.. All is well that ends well.

   sarge..jt

2. 
   HowardAcheson | Apr 11, 2003 07:55pm | #2

   Here's the way I teach to get the proper clearence between the bit and the chisel.

   Insert the chisel up into the quill but use a quarter on edge to keep the chisel from completely seating. Now insert the bit up through the chisel until it is fully seated and stopped by the chisel. Tighten the bit. Now, loosen the chisel, remove the quarter and fully seat the chisel into the quill. Tighen the chisel.

   The quarter will assure that you have the proper clearence. If you hear squeeling, you need to adjust the clearence. PAM is not the answer.

   Also, hone the four sides of your chisels to the same degree of polish as you would the backs of your bench chisels. Use the same stones and/or process. This will greatly ease the entry and exit of the chisel into hard or resinous woods.

1. 
   kenewald | Apr 14, 2003 06:36pm | #4

   Excellent idea about seating the bit to the "lowered" chisel, then raising the chisel.

1. 
   yotonyb | Apr 15, 2003 07:25pm | #5

   The Delta (and I thought the Jet, too) has some "slop," a little play in the chisel when the set screw is loose. In either a previous thread, or printed article, I learned that the extra play was for the purpose of creating some clearence between the bit and chisel to prevent burning/dulling of the two pieces of metal.

   Set the chisel in the "lowered" position. Carefully push the bit as far as it will go and tighten in place. Raise the chisel until it's firmly seated and tighten the set screw. That will give you the additional clearance to minimize contact between chisel and bit.

   Also, while it might be extra work, I've had good success pre-drilling deeper/wider mortises by punching a series of holes on the piece using the drill press with a bit that's about an 1/8" narrower than the width of the mortise.

   Good luck and good skill to all!

   tony b.

1. 
   kenewald | Apr 15, 2003 07:52pm | #6

   Predrilling is an excellent idea.  Thank you.

   I'm very glad to have a mortising machine... doing these by hand is not my idea of fun.  I enjoy other parts of woodworking much more.

   -Smokeless in Seattle (sorry, I had to...)

3. 
   Shepherd1800 | Apr 13, 2003 05:40pm | #3

   Howie is right about honing the chisels.  If they are mirror shiney you will greatly reduce burning and the cutting is much easier.  Also make sure the bit is sharp and the flutes are clean.  Clean the flutes and inside of the chisels with turpentine to remove any buildup.

    

   Stephen Shepherd

   http://www.ilovewood.com