You can make a sled or build a set of skis for your router and use that to flatten with but you'll still need to sand the wood smooth, but you usually have to sand planed wood down to get rid of chatter marks too. There is quite a bit of information about skis if you search them on the forum search engine. All you need is a straight bit for your router.

 

magnate.net has some surface planing bits that I have used with my router mill for planing. The only advice I have found is that if you want a perfect finish, your router base must be absolutely parallel to the reference surface you are planing. The larger diameter of bit you use for planing, the more noticable any misalignment will be.

Magnate

I get best results using the 1 1/2inch diameter bit, the 2" removes stock in fewer passes, but leaves a ridge on one edge of the cut if alignment isn't perfect. the 1-1/2 and 1-1/4 are my favorite planing bits.

You don't get perfect finishes, but you get pretty darn close and it is an easy sanding or scraping job to get the rest of the way.

 

I use a sled to mill slabs.
Mine is simply a piece of plywood 12" wide and 4' long with a 1X3 screwed to each long side.
After screwing on the 1X3s, I ran the whole sled through the planer, insuring the 1X3's top edges are parallel and the same height.
The Router base is a 24" X 10" X 1/2" piece of BB. I glued two 24" long 1X1 oak stiffeners on the top side.
The bit is a bowl bit. I still need to sand.

 

Some good tips there, Gene.

 

This is how I plane wide boards, I hope that it helps. Here in pdf format is the making of a ski jig, a very useful accessory.

 

Hello Harry! I must have been typing my post when you were posting yours. You can see where I learned how to do it. From you!

Keep up the good work Harry!

Darrin

 

Bob,
Here is my set up for doing just what you are trying to do. There is link to the bits as well.

http://www.routerforums.com/jigs-fixtures/29019-first-use-my-skis.html


1.75" Bit


2.25" Bit


3 Piece Bit Set

Darrin

 

Great to hear from you Darrin, we don't see enough of you these days.

 

Life is keeping me busy Harry. I would love to get on the forum more and look, read and learn like I used to but just haven't had time. If I do have spare time, I spend as much of it as possible in the shop doing wood work, or working on my Coleman collection.

Bob,
While I was searching for the link to the my post I came across a lot of other post about planing and sleds and jigs. Search the forum, and you may come up with an idea you like better.

Feel free to reach out ask any questions you may have, as everyone here is always willing to help out.

Darrin

 

Thanks for the info. Mow I have to decide which way to go.

Bob