Setting up a Myford ML7

BRAD · 2007-07-23T22:29:36+00:00

Hi, hope someone can help a neebie before I go meltdown !!.....I bought a ML7 recently and I'm having loads of trouble setting it up.I've levelled it up with an engineers level and it now looks spot on. The chuck is a recon Burnard 3 jaw from Myford....test report = 0.002" rounout 2" from chuck.The problem is that when I chuck a length of bar it is quite obviously out of true......I used a DTI...runout is .005" near the chuck and 0.018" at the end of the 6" bar when rotated by hand.I've found the mid point at the chuck end and ran the apron to the far end (without rotating the chuck) and DTI shows no change, therefore I assume the bed is now straight.I clocked the nose on the spindle in many positions...no movement apart from a 0.004" movement right on the end on the vertical surface when rotated and the DTI horizontal (not on about the endfloat).There were a few 'bruises' on the spindle threads wheich I gently filed down...the chuck now goes on a lot easier, whereas it was very stiff before....the bar shows a slight improvement too.I tried turning a bar down but it is still wobbling badly on the end of a 6" bar.....it's as though the bar is bent (which I'm sure it isn't). When it's turned down it is missing all along the side facing me. I've tried a few more bars (including a ground test bar)...all clock the same amount. I have a 4 jaw...would that run true or is there something else wrong?Any idea's???....Please!!!Brad.

Jul 23, 2007 22 Replies

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BRAD 19 years ago

Hi Norm, would you happen to remember which issue of MEW your article was in about restoring your friends ML7 by any chance? It would be very interesting to see if I could get a back copy (if possible). Cheers Brad.

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ravensworth2674 19 years ago

Hi Brad, this modern techni- gadgetry is getting me con-fused. I have the article somewhere and I have a few other things which I might 'scrape together' Could you E-Mail me with your E-mail add. Mine, I believe is on file here.

Sorry about the delays etc

Norm

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