Always check your knife clearance to the guide. Clear away any interfering portion of the guide by gently
lowering your knife down into the guides to just below your running position.
MOLDING PICTURE FRAMES
Decide whether the rabbet or profile cut should be done first. If you are going to make the rabbet on the W&H
Molder, do the rabbet first. In order to utilize the W&H Molder for rabbets, a rabbet knife with a depth of cut
equivalent to the depth you need should be ordered. If we do not have a standard knife with the depth you seek,
we can make a special knife to suit your needs.
ROUND TOP CASINGSCONSTANT RADIUS SIZE ARCS
We manufacture knives with the profile cutting the deepest portion of the cut on the open side of the machine.
Notify us when you order a knife if you want the deep side of the cut on the vertical tube side of the machine.
The set up and operation of the W&H machine for a round top moulding job is very similar to the straight
moulding set up. One main difference is the moulding stock will ride piggybacked on a template to enable the
knife to clear the jig guiding hardware. Our EJ92 Elliptical Jig is not needed for a fixed, constant radius.
Stock preparation can be done in many ways. The following is one example.
First determine the angle needed to cut the wood sections in order to stay within the selected radius. Lay out the
wood sections by marking the angles while being careful to select cuts for grain structure and color. Cut the
sections and biscuit join them together with glue.
We made a fixture to band saw the inside and outside radii consisting of a pivot bar and bracket. We mounted
the pivot bar to the stock on the scrap portion of the inside radius. The pivot bar is drilled with numerous holes
to accommodate any radius sizes. You may also want to design a fine adjuster to allow you to make any radius
in between your adjusting holes. Make sure the outside radius is cut first.
The guides should be 20” long, which is the length of the GS2 guide system, or 14” long if you are just using
the bed of the machine. The guides may be made using the band saw set up. We make one guide for the inside
radius and one for the outside radius. We use MDF board.
ROUND TOP SETUP
1. Make sure power supply is disconnected
2. Raise the machine head and set the stock on the bed.
3. Align the stock with moulding profile.
4. Lower the head to pinch the stock.
5. Set the guides and clamp them in place.
6. Raise the machine head, remove the stock, and reset the head to within 3/16” of stock size. Check to see
that the rotating knife will not hit anything you don’t want it to on start up.
NEVER attempt closed loop molding. It is an unsafe procedure, you will not have enough roller pressure
initially.
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