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Re: Help needed with shaper setup

 

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I¡¯ll hazard a few guesses:

  • Your spindle is not perpendicular to the cast iron top and you don¡¯t realize it. ?
  • Or your coping sled is angled downward at the spindle end due to an excessively high sliding table.
  • Either/both could contribute to an angled cope (counter-profile) cut such that the top of the profile is shorter than the bottom.
  • Your spindle may have run-out issues, or the cutters are defective or the cutters improperly ground.

I would first start by checking your spindle angle: put a dial indicator on a mag base on the naked spindle an indicate a circular pattern around the cast iron top as shown below. ?If the spindle is perpendicular to the cast iron top, the indicator will yield zero (or close to zero) variation as you rotate the spindle by hand (using the belt to rotate the spindle).

Spindle Alignment Check.jpgmeasuring?

I would also check the height of your sliding table relative to the cast iron top and reporting back. ?If it¡¯s excessive, you might be able to correct this by either shimming the bottom of your coping sled where it rests on the cast iron top, or tilting your spindle backward (which would be tedious and require some trigonometry to figure the proper angle to offset the angled sled base. ?

Try this experiment: ?Put your rail component on the cast iron top laying right to left against the shaper fence, then butt your coped material into the profiled of the rail with it laying across the sliding table. ?Do the joints mesh in a tighter manner? ?If so, the cope cut is indeed angled because the material is not coplanar to the cast iron top (because the sliding table is too high).

David Best
DBestWorkshop@...
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On Feb 11, 2024, at 4:11?PM, Brandon Nickel <brandon.nickel@...> wrote:

I am confused by a problem I'm running into. I am setting up the KF700 with a set of Amana cope and stile cutters. I have the stile cutter on the bottom and the cope on top with about 40mm of spacers between them. I am cutting the cope end using my Woodpeckers coping sled.?

I have a problem where it appears that the "back" of the cope joint is interfering before the top. I've never had a problem like this using similar cutters on the router table. The result is that the joint doesn't sit flat, but has a shallow angle. If I press both pieces down to the table, I get a gap on the "front" of the joint of 0.6mm.?

Both pieces are square when I set them in my Starrett square.?

So, any suggestions on what I'm doing wrong? I'd really prefer to make my cabinet doors on the Felder than to break out the router table again.?
<PXL_20240211_235925107.jpg><PXL_20240211_235853939.jpg><PXL_20240211_235827914.jpg>

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