nothing atm irving i think my 1st thing i will do is convert my milling mc to cnc :)
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nothing atm irving i think my 1st thing i will do is convert my milling mc to cnc :)
oh right, just those are very lightweight motors and I was wondering about your expectations of them...
Sorry, yes - 130 degrees max internal which is about 85 degrees on the case. This website seems to think 70-80 degrees is normal - bit of a useless temperature that - hot enough to want to avoid touching but not hot enough to make tea.
80 degrees above ambient is pretty tepid in my garage at the moment so I don't think it will be a problem for a while :-)
well i tested the temperature 54c
Attachment 3513
my 24v supply turned up :smile:
when its all running should it sound like 56k modem?
can any one recommend a program to start with for gcode.
Hot enough if you're 6700m above sea level!
My motors (3nm size 23, 4.2A on 75v) rarely got hot. The vast majority of the time I can barely feel any temperature rise. It's only when the machine has been running for a long time that they start to get hot. I think the drivers reducing the current to 50% when stationary helps here.
It makes me wonder if I can up the current a bit and get a bit more torque/speed. It's on 4.09A, could try 4.64A. That'd be up to 30% more heat I think (I^2*R), or 20% above rated power.
what motors should i be looking for? the board i bought is the 2.5amp and 24v PSU.
Depends greatly on the size of your machine, are you using ballscrews/ACME etc. With only 24v you want a motor with very low inductance to get any reasonable speed.
reccomended v=32*L^0.5, so rearranging that:
L=(24/32)^2=0.56mH
So your looking for a motor with an inductance ideally lower than 0.56mH, and sufficient torque...you'll be lucky to meet those criteria so just find as close as possible.
Hope that helps...
sort of helps, from this which would you say is the best to go for?
http://www.savebase.com/InfoBase/SAV.../nema23_56.png