I made a rail bender as left based on the article found in the web site “JJ & C RailRoad ”. However the site seems closed and could not be found any more. In original design a drill press vice is used as the base of the bender. However drill press vices are not so cheep in Australia. So I made up the sliding base from hard wood. The wooden base works quite well. The base is made of 19X40mm hardwood and assembled by wood-screws.

レールベンダーを自作しました。JJ & C RailRoadというサイトで作りかを見つけ、それを元にしてあります。このサイトは閉まってしまったようです。元の設計ではマシンバイスをベースにつかうということでしたが結構高いので、ベースも19X40mmの堅木で自作しました。

Drawing 図面 (pdf)

I made 4mm wide grooves in side rails and sliding block by router and fix 4mm thick hardwood plate to the sliding block. This allows the sliding block moves back and forward in the side rails. Adjust groove width or thickness of 4mm hardwood plate to obtain smooth movement.


I used skateboard wheels as rollers. They need grooves to accommodate the rail. The grooves are made as:

  • Obtain a stud bolt suitable to the inner diameter of wheels.
  • Fix the wheel to the stud bolt with nuts and large washers.
  • Mount the assembly to a drill press.
  • Run the drill press and cut the grooves using actual rail as a cutter.
  • The rail will become dull very quickly. So often sharpening is required.


  • ローラーの内径にスタッドボルトにローラーを大き目のワッシャーとナットで固定。
  • これをボール盤につけてまわします。
  • 実際のレールをカッターとして使って溝を彫って行きます。
  • レールはすぐ減るので頻繁に削りなおす必要があります。

I fix the bender to Back & Decker work bench clamping at the part with arrows.

Carefully feed the rail to the bender so that the rail is always kept in the grooves on the wheels.




inserted by FC2 system