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24-07-2016 #11
Scary stuff - she has cut her first steel
Spent the morning putting stuff back - trammed the head, fitted the vise and trammed that in, fitted a floating Z touch-plate and modified the touch-off macro so it did what i wanted.
Threw a small lump of 20mm scrap in, a duff 1/2" four-flute cutter and programmed a facing cut in Aspire of 0.5mm, seemed way slower than i would have moved if doing it manually - may not be a bad thing. It gave me a speed of 140mm/min at 650rpm
Picture below - looks worse than it is, pretty good finish as it goes considering the state of the tool etc. and dry cutting plus unknown grade of steel.
Next I tried spot-drilling four places and followed up with through-drilling with a 6mm drill, all went perfectly.
I really need to sort the speed control out though - it tells me when to put it in back-gear or high/low speed so the VFD can give me the final speed BUT it only does this when it gets the S command from the code - it shows the message on screen but the carries on cutting at the wrong speed. What i need is for it to stop the spindle and show the message, wait for me to set the right conditions and the restart the spindle and get to work.
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