is this the right power supply ?
please look at link
http://www.ebay.co.uk/itm/500-Watt-A...#ht_1856wt_905
James and Luke
Printable View
is this the right power supply ?
please look at link
http://www.ebay.co.uk/itm/500-Watt-A...#ht_1856wt_905
James and Luke
No, an ATX power supply is a computer power supply so although the power is fine you only get 12V (and 5V, 3.3V and some others) which is not sufficient. You will get a much higher feed-rate if the motors are run on a higher voltage. You ideally want 70 volts.
I can't find the right power supply on farnell
I found a power supply 500w but only 48v ??
Help
rapid web site is down so I can't look on there
James
Would be OK, but since your drivers can accept up to 80V it's best to do that. I can't find any on eBay that are above 50V, so I think the best option is the transformer I linked to on Rapid in post #46:Quote:
Originally Posted by luke11cnc
Annoying that the site is down, but it's easy to get round - just use google cache:Quote:
Originally Posted by Jonathan
http://webcache.googleusercontent.co...w.google.co.uk
Jonathan I will order the one from rapid on Tuesday
Will I need to order anything else for it (box) or will it fit in a old computer case along with my drivers and break out board
James
Computer case will be fine. Wire is cheapest from Rapid:
http://www.rapidonline.com/sku/Cable...119346/02-1066
(I'll buy the spare from you)
I emailed them and they said 2 weeks to deliver it.
Also for the power supply I'd get a bridge rectifier and terminal strip. I'll find them tomorrow when the site is working. They will also have suitable switches for limit switches.
cool thank you Jonathan
well Luke has been in the garage/work shop for most of the day drilling the legs ready for the stepper mounts
to say he loved it is a understatement at the end of it I received the biggest hug,smile and kiss ever and as he was walking out the door he turned around as said dad " it's been the best day ever dad I love you"
I've taped the motor mounts with just a couple of mm to go but that's for Monday and Luke to do
Jonathan that jig worked really well
I think I've had the best day of my life as well
James and Luke
I have a spare torodal transformer and some 4700-100v caps and probably Br-rec that will get you 70+volts if you haven't bought them yet.
The torod is almost new I think it's 1000va but will have to dig it out to get full specs to be sure then i'll be able to work for you the exact volts + amps.
I think i've got 4x caps which can be wired parallel and If memory serves me I think this transformer and 4 caps was giving me around 76 ish volts and 14A ish.
PM me If this is any use to you and I'll give you my contact details.
James,
what about something like this: http://www.antekinc.com/details.php?p=317
Ian
That would be ideal - it's just a lot more expensive than the one from Rapid, especially when you include postage.Quote:
Originally Posted by Web Goblin
Sounds good...but where are the pictures?Quote:
Originally Posted by luke11cnc