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  1. #31
    d4cnc's Avatar
    Lives in London, United Kingdom. Last Activity: 2 Weeks Ago Has been a member for 0-1 years. Has a total post count of 83.
    After a little experiment, I settled on sticking it on the film on the underside too. Worked great! Stuck strong. Easy to remove from MDF & aluminium. I used the Dial brand one from B&Q..

    I tried the 2mm cutter on the settings above on some 2.2mm holes, and all seemed ok. I used a steeper angle helix this time and the chips certainly do fly like that!

    I just did 1 pass.. am I right in thinking that due to this, the accuracy isn't great?
    eg. some holes I can fit a 2.2mm drill bit in nicely.. others are too tight..
    If I wanted it more accurate and repeatable, I'd have to pocket the holes at 2mm and then do a contour finish pass to enlarge to exactly 2.2mm?

  2. #32
    Generally yes, a roughing pass leaving 0.1mm or so then a finish pass is best, i find it works well.

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