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  1. 07-12-2009 #2
    irving2008's Avatar
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    Quote Originally Posted by CraftyGeek View Post
    I'm starting to think ahead to projects that I may build in the future on my DIY MDF cnc machine. I will at some stage want to make something that is double sided - the software side I can work out on my own easily enough, but I'm having a little trouble working out the hardware side of things.

    How can you ensure the best possible alignment for double sided machining?
    Are there any alignment approaches or stock mounting methods that can help?

    I can see a lot of room for error in this, so any info would be very helpful.

    Thanks

    Tom
    The usual approch to this is some form of 2-part jig, one part of which clamps to the table and the other to the work. The two parts of the jig are joined by dowels or pegs and the workpiece part can be flipped over.

    Assuming the centre line of the jig is zero'd correctly, so flipping the work over retains the centreline accurately then machining will be coincident on both sides.
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