using aftermarket knife setting jigs for Delta RC-33 or Invicta/Delta 22-650 - Page 2 - Woodworking Talk - Woodworkers Forum
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post #21 of 24 Old 12-13-2018, 12:21 PM
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Originally Posted by Jimbo Cochran View Post
Realize almost 6 year old thread. Regarding the Delta RC-33 22-650, can anyone tell me the height of the knives from the cutter head? Can not find this information anywhere, certainly not in the instruction manual.
in Cabinetmans pdf pg 14, shows how to make a gauge to set the knives...I would assume it takes 2, and possibly magnets could be added?

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post #22 of 24 Old 12-14-2018, 10:03 PM
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Sorry, maybe my question was confusing. Was asking the height the knives should protrude above the cutterhead. Not too much, not too little, but just right said Goldie Locks. Have since found another site where poster said 0.05" above cutterhead. I have the instruction manual, easy to find online, but it does not tell how high to set the knives above cutter head. I have set knives in planers for 20+ years, not a difficult job. Have a lunch box Dewalt and a old massive Delta/Rockwell. This planer is medium size, will make my primary planer. Recently obtained this tool from a high school shop surplus. Original knife setting jig not with it. Will try setting at 0.05" and reference infeed and outfeed from that.
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post #23 of 24 Old 12-15-2018, 08:59 AM
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Jimbo, From the looks of the gauge on pg 14... It looks like the gauge rests on each side of the cutter drum over the cutter, then you extend the cutter knife upward into the pocket of the gauge where it has the 1/4" cut out. You would need two gauges placed on each end of the drum. You might consider imbedding rare earth magnets into the gauges to help hold the cutting knife against the gauge while you tighten/adjust the knife.

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post #24 of 24 Old 12-15-2018, 11:06 AM
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Sounds about right .....

This thread says .035" above:

How the jigs work;

Height from this thread:
"If you re looking for an actual dimension, I would say the less the better. You don t want it out too far as the knives would be placed under excessive stress. With no other indicators available, I usually put the back edge of the bevel right at the edge of the drum.
The thread over at owwm mentioned that the distance was stated by a Delta service tech.. and according to him, knife height should be between .0045-.0060” , he said they recommend .050” and that’s where they set the machines they repair.

Also, it is most common, when not knowing, to have the bevel edge (heel) set between 1/32” and 1/16”, and that is what is recommended by Powermatic, Delta, etc… in a lot of the manuals for older machines. YMMV."


The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
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