I wanted to put this as a response to the thread about this subject but couldn't seem to find how to insert an image in a response.
As you can see by the picture, I used my hand trimmer to make one for the disc sander. Then I took 7mm tubes and made inserts for the larger pens. This can be done with corian or wood. The acrylic piece was cut from an acrylic box found at where else, the thrift store. By cutting this from an existing box it assured me that it was square and gave me a side to run up against the miter guage. All I did to attach the trimmer was un screw the handle drill a hole and put it together!( make sure your drill hole is straight!) It really works great and is so much faster especially when I do 200 corian pens for an order!
If you have a very large brass tube you can place a metal washer behind the blank to be trimmeed so it does not slip back over the original trimmer head.
As you can see by the picture, I used my hand trimmer to make one for the disc sander. Then I took 7mm tubes and made inserts for the larger pens. This can be done with corian or wood. The acrylic piece was cut from an acrylic box found at where else, the thrift store. By cutting this from an existing box it assured me that it was square and gave me a side to run up against the miter guage. All I did to attach the trimmer was un screw the handle drill a hole and put it together!( make sure your drill hole is straight!) It really works great and is so much faster especially when I do 200 corian pens for an order!
If you have a very large brass tube you can place a metal washer behind the blank to be trimmeed so it does not slip back over the original trimmer head.