Question about Wmh Tool Group Jet 13" Planer Molder

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How to make crown molding with a jet 13" planer /molder

What size board do I use to start with when making crown molding and what side is done first? The bevel on the back or the face?  I have been searching the internet for hours for information on how to use a molder for making trim and all I can find is how to cut it and install it.   Thanks for your help!

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You may want to go to the Forum at OWW (Old What your attempting to do requires several Passes. I usually Rough out BOTH Face & Bevel, then make 2 more cuts each, to get to the Finished dimensions. I usually start with a Face Cut 1st, leaving some Flats for Square then do the Bevel Cuts to Desired dimension, then back to the Face, & take it down to where the Finished product is where I want it.

Posted on Jan 17, 2009


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My Jet Molder/Planer cuts the last four inches of the piece slightly thinner. The piece is straight and fully supported on the table. The feed rollers seem evenly adjusted. What's up?

The problem you are describing is called "snipe" and it can be caused by alot of different things. Even the best woodworkers have to fight this problem.
- you did the right thing by making sure that the matrial is supported, but if the oppisite side of the board is'nt true it will carry over onto the face. The only way to "true" a board is to use a jointer.
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-Now for solutions other than jointing-
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4) make sure material is supported
Also your machine may have a bedplate adjustment to help with snipe you will have to look at the manual to find out.
If you take a close look at your machine you will notice that the length of the snipe is also the distance from your rollers to your knives, This means that the board is not laying flat and is being pushed up into the head until it can be supported by the next feed roll.

I hope this helps

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