|Project by pmcustom||posted 06-04-2013 09:31 PM||2503 views||13 times favorited||2 comments|
Here is another planer sled design if anyone is interested. Like usual, I went overboard on what could have been a simple tool, but the result is a moderately light weight (especially compared to some of the designs I’ve seen) sled that is rigid & easily adjusted. The main features are the adjustable supports, which are spring loaded and easily locked/unlocked with the turn of a screw.
The basic construction is 1/4” hardboard top & bottom, maple blocks where needed for the supports and at the front and back, plywood edges and foam in the empty spaces for rigidity.
The supports look like this:
The mechanism to lock the support in place is the piece shaped like an H>
In the above picture, the sides are not yet installed. All I did was inlay the support into the top of the mechanism and put a sliding piece in the lower part. Then I drilled holes to accept the bolts. In the following pictures, you can see how the supports are locked in place. The first picture shows the holes in the unlocked position, with the side screw loose. The supports are free to move:
In the locked position, with the side screw tightened, the sliding piece moves enough to put a bind on the bolts, which locks the support in place.
The supports are bolted from the bottom so they are limited to about 3/8” travel, so they can be pushed flush with the surface or extended up to 3/8” (or anywhere in between). I figured I wouldn’t need more travel than that, and so far it has been enough.
I have also used this as a temporary jig to straighten one edge with the tablesaw. It works fine but is too heavy and cumbersome. I will have to build a different jig for that task.
I will add more details as I have time. Thanks for looking!