Here, Tormach machinist Mike Corliss demonstrates the proper procedure for squaring a block on with a milling machine. Doing this right will ensure that you have 6 perpendicular faces to work off on your workpiece. This is an easy skill to learn, but getting good results takes some attention to detail and procedure.
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Tools you’ll need:
- – A Good quality Vise. If you don’t start with a vise that’s square, you’ll have no chance of ending up with a square part. Also, make sure to square the vise to the milling machine – here’s our tutorial on how to do that.
- – Parallels, or something similar – a set like these will do the trick. The important thing is that what ever you use is precision ground.
- – Large diameter cutter. We’re using a fly cutter here, but you could also use a face mill. (For a simulated flycutter, try using the face mill with only one insert installed.)
- – Smaller diameter endmill. We use a 3/8″ cutter in a TTS Set Screw Tool holder, but anything similar will do the trick.
- – Granite Surface Plate and 123 Block. You’ll need to use these as reference surfaces to check your work
- – File and/or Deburring tool for cleaning up the edges