[yngndrw]

Hi,

I'm wondering how you would take a block of metal which had 6 un-even sides and face each side so that opposite sides were parallel and adjacent sides were perpendicular.

I'm looking for a step-by-step guide to doing this accuratly, with details for how you would clamp the part.

This might seem like a very simple operation, but the thing that I don't get is how do you clamp the part to keep the next face parallel / perpendicular from a reference face.

The way that I can see to do it is:

* Clamp the part and machine the first reference face.
* Turn the part over so that this reference face is flat on the bed and machine the opposite face. (But how would you clamp it, making sure that the part is clamped enough that it doesn't move, but the reference face is still held flat to the table ?)
* Then I don't know how you'd go about it.

I've made a little picture to show the problem with part 2. (Black is the bed, grey is the vice and red is the part.) - Surly if you clamped the part enough, the reference face would lift off the bed ?

Thanks,
-Andrew.