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Silly things that shouldn't be repeated:
Like today : Storing a pre-made (and used) gun-blue liquid stain in a glass jar.
Placing jar on high shelf.
Above the milling machine.
Sat on steel-clad bench.
Slamming the shed door as I leave the shed, hearing something fall off a shelf and thinking "I'll sort that later".
Result: One massively stained steel bench top and a camo-patterned bed on the mill. And glass and liquid everywhere.
Lesson learnt: Don't store liquids on high shelves.
I take it you are having a bad week:beguiled:Quote:
Originally Posted by Doddy
Checking the DC outputs, 5v read 5.1 so ok there but couldn't get a reading on the 24V ??? After twenty minutes faffing about realised the meter was set to 20V, reset to 200 and ask sweet.
Machining a 2mm thick control panel to a cnc lathe conversion. Everything turned out great, except for the largest 50mm hole. This hole is for a gearbox lever. It turns out that when measuring the position for the hole I forgot to subtract the square width (I used a square for a reason I wont get into). So now the hole is offset 30mm, awesome.
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Getting off the forklift to move something but not taking it out of gear....: Benny hill would av been proud watching me chase forklift, then It chasing me ...:hysterical:
Speaking of which Doddy can you suggest what current I should be sending my Denford Router steppers? The drivers are getting 65V.Quote:
Originally Posted by Clive S
Not funny! And definitely not 4A. My Denford star mill was rated 2.1A but can't tell you if that's appropriate for the router. Don't worry about the voltage.Quote:
Originally Posted by ngwagwa
Sorry wasn't mocking just thought you'd have a figure in mind.Quote:
Originally Posted by Doddy
SO TODAY... replacement stepper for the one I burnt out on the Star Mill arrived. Nice big motor. Now, for those unfamiliar with a Star Mill, the Y-axis motor (the one that this replaces) sits parallel with the Y screw, mirrored back onto the screw, with a pair of pulleys connecting them. So, the body of the motor resides inside the cavity of the iron casting of the column.
This is also where the original 180VDC 1/2HP spindle motor sits, as well, on the moving Z-column. Not that I use that - I have an externally mounted Chinese spindle, but never got around to removing the original spindle motor. I mean, what harm can it do?
So... bigger motor goes into the column, re-assemble, swap the A-Axis driver to Y-Axis and reduce the current/coil to 3A. Feels about right. Fire up UCCNC - YEAH, Y-Axis back to life. Let's just check the rest of the axis - X = yes, Z = yes..... CRACK!
So, the original spindle motor traversed down, hit the new longer stepper on the Y-Axis, and decided that the weak link in the chain is the column casting - there's a strip at the base around 10mm in width that had two bolts holding the Y-motor plate in place. Well that's gone now. Tomorrows job - I've got some 10mm steel plate somewhere - time to cut a replacement plate and bolt that in place. Then rewire some of the sheared cables that got trapped between the stepper and the spindle. I *think* all the drivers are okay, but I've plenty of MOSFETs in the post if not.
I think this Star Mill is becoming the pet project of the week for me.
How about ordering something online and selecting free delivery at 3 to 5 days as your only getting as a "just in case backup" then having to sit around when you realise you really need it :(