|Nick Hulme||04/08/2018 17:22:35|
|750 forum posts|
Unless the head lifts as the Y traverses this will make
|Roger Williams 2||04/08/2018 17:41:23|
|340 forum posts|
Hello all, Im taking it to pieces tomorrow. The reason Ive come across this error now is because Ive always assumed every thing tobe correct, until I measured a piece I had machined for accuracy and was shocked. The DTI base is clamped under the head, rigidly too. Ive reasoned that if the column, which is bolted up solid, were at 45 degrees to the vertical, it wouldnt make any difference. Unlikely I know !.
The mill is in supeb condition, and not really over used. I did most of my machining using a Jones and Shipman vice (stupidly sold!!!) which is probably why I havent noticed anything . All the later work ona vice machined from castings by me, which is out on it sliding surface by this 10 thou .
Anyway , everybodys advice is much appreciated. Thanks.
7897 forum posts
Nice one Nick, I've been educated.
My earlier point was about the risk of misunderstanding measurements. How ironic that it was me who was confused. (Again)
|Ian Hewson||04/08/2018 21:32:03|
|314 forum posts|
Reground the surface of my magnetic table by mounting the head of my quorn in the spindle of the mill and taking small cuts, came out ok.
|I.M. OUTAHERE||05/08/2018 00:48:11|
|1468 forum posts|
Also check that the table surface is ground flat , sit your parallel on it and shine a light behind to see if there any gaps
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