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| Falling mill? |
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| -steves-:
I have recently just started in this making bits and bobs game, and recently acquired a lathe and mill. What I have noticed is when using the milling machine, it appears to "drop" as I use it. If I start at a position on a work piece, and more noticable where it has parts where it doesnt do anything, then back onto parts that do, then as it moves from part to part, the mill height seems to have dropped slightly without me touching anything, only the x and y axis. If I go back to where I started on the work piece, this can be a significant height difference to what it was when I first started the job. It will only "drop" so far and then not drop anymore, but this can be quite a bit, enough to make 0.5 difference or so, I have not measured it so I am just guessing, but its big. Can anyone explain why this would do this, yes it is only a cheap mill, but I wouldn't have expected this from even the cheapest mill, or should I have expected this?? more to the point, can I fix it??? :( |
| Rob.Wilson:
Hi Steve What make of mill ? What are you using to hold the milling cutter ? Rob |
| -steves-:
Like I said, it is only a cheapy, well, the cheapest I could find, but this is it. Please dont laught too long :( http://www.amadeal.co.uk/acatalog/XJ12-300.html I am just using a "drill chuck" type thing to hold it, I could understand it moving upwards because of the chuck, just not down :( I am intending to get a face mill on an MT3 which I am hoping will be more accurate, but I dont know? |
| Brass_Machine:
The possibilities... We need some more info like Rob stated. Could be anything... quick guesses... 1) Mill is out of tram 2) Not locking the Z 3) Tool holder is worn/broken/incorrect. |
| Brass_Machine:
Same mill as mine. Don't be embarrassed, mine has done a LOT of work (Paid work even). It it does it without issue. Just noticed you are using the drill chuck to hold endmills. STOP! get the correct holder. Are you locking the Z? |
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