Thread: Fingers crossed it'll cut ally
17-11-2010 #101could use a really high feedrate with the cutter going at 60krpm
Can't you get the existing spindle to drill nice grid of holes in the bed plate when it's all set up? That's what I'm intending to do.
ill need to stick a biro in my spindle and work on my confidence :)
Last edited by blackburn mark; 17-11-2010 at 12:32 AM.
im starting to wonder if i know what im doing with this thing
iv got a 12v 30A power supply in there for the spindle (couldnt fit the 45A in)
a 24v 15A for the steppers and a 5 axis china special :)
an old pentum4 system shoe horned in with a low profile cooler and a right angle riser for the graphics card, looks like it might get a bit warm in there and im right glad iv used sheilded cable for home switches and steppers
i used to throw this motherboard out of my way a couple of months ago :whistling: iv been holding it with two hands and tiptoing back n forth with it like its a new born baby.... i did test it before i comssioned it for a new life, in fact all the gear has been tested but im still going to squint my eyes first time i flick the on switch
can anyone tell me if ill be ok leap frogging the mains on all three power supplies and using a 220v 16A switch to turn the whole thing off (after the pc side of things has shut down of course)
At full rating and 100% efficient thats only 1 kw so at 50% efficiency 2KW at max, I expect most times it will draw a lot less.
I would put a separate fuse on each power supply. Whatever is standard for the computer (3A?), and probably similar for the power supplies. Bear in mind the surge current when you switch it on will be quite high. In my case switching on the stepper motors briefly dims the light in my workshop.
Oops, just realised you're talking about a switch not a fuse Nevermind I'll leave this here.
I'm liking where you've chosen to mount the electrics.
22-11-2010 #106dims the light in my workshop
should i also run an earth to my frame, the power supplies are bolted to the frame but iv no idea how conductive the surface of anodised aluminium is ?
22-11-2010 #108as far away from dust as possible.
I thought our drivers were the same? I've got 4 PM752 drivers on a 500VA (I think) toroidal transformer. Maybe it's the big capacitors that cause it...
I think the surface should be conductive enough for an earth. Whether it's a good idea or not I'm not sure. I'd be inclined to say yes.
Good point about the dust. Any fans in there are going to blow in a lot of dust. I found about a 5mm layer of wood dust (and some metal swarf!) in my computer when I cleaned it out on Friday. Probably should have made sure the case side didn't keep falling off, but still...
Edit: didn't see your last post in time :(
22-11-2010 #110I thought our drivers were the same?
its amazing how much more the gantry sides flex in the Y axis compared with the X axis
ill stick some sort of buttress on them if its a problem
By i2i in forum Tool & Tooling TechnologyReplies: 12Last Post: 21-02-2013, 07:47 AM
FOR SALE: 45 by 90 ally profileBy johngoodrich in forum Items For SaleReplies: 5Last Post: 13-09-2011, 05:45 PM
By robmurf in forum Projects, Jobs & RequestsReplies: 2Last Post: 01-09-2010, 12:16 PM
NEW MEMBER: anyone wanna quote me to cut some ally?! and....By robmurf in forum New Member IntroductionsReplies: 2Last Post: 01-09-2010, 09:31 AM
By irving2008 in forum General DiscussionReplies: 6Last Post: 18-01-2009, 09:15 AM