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  1. #11
    Thanks.

    Can't wait until the new Maplin store opens up in September here in York - would be dead handy for this sort of thing, especially as it happens to be on my way home from work :-)

  2. Register with Farnell... cheaper than maplin, postage free, no minimum order

    Here you go 10 for a £1

  3. Also check Rapid Electronics
    http://www.rapidonline.com/
    Last edited by irving2008; 06-08-2009 at 11:57 AM. Reason: corrected URL

  4. Quote Originally Posted by bikepete View Post
    Minor progress last night - opened up one of my donated Dell ATX PSUs and armed with a multimeter started looking around for the ground-to-case connection as per the various instructions around e.g. here. Aiming to link three PSUs to give a 36V 10A supply.
    Just a note for anyone else planning to do this... a safety point that is not stated in the article referenced:

    When connecting two or more supplies in series to give 24, 36, etc volts - the one that isn't modified (i.e. still has the case connected to the negative output) MUST be the bottom one in the stack. I know its probably obvious but its not explicitly stated and is a big omission IMHO..

  5. #15
    Thanks both - had ordered from Rapid before but had forgotten Farnell - do remember their paper catalogue from years ago!

    Good point Irving.

    Another point is that once you stack three of them up it gets pretty bulky. I'll also need to make quite a large cutout or series of cutouts in the back of my enclosure for all the fans to exhaust through.

  6. Thanks for editing that Irving :)
    (It's a real pain to edit with Opera on an PDA )

  7. #17
    For some reason

    http://cpc.farnell.com/

    seems even cheaper than normal Farnell - and free shipping if over £10 today at least...

  8. Quote Originally Posted by BillTodd View Post
    Also check Rapid Electronics
    http://www.rapidonline.com/
    Their prices are good, (50p for 100 CR25 resistors, single value) but postage @ £4.95+VAT

    Just compared costs for my BOB & 3 axis driver - Farnell £32.21, Rapid £33.18 both inc VAT. Rapid don't have the range Farnell have.

  9. Quote Originally Posted by bikepete View Post
    For some reason

    http://cpc.farnell.com/

    seems even cheaper than normal Farnell - and free shipping if over £10 today at least...
    Cheaper on some items, strangely much more expensive on others and a much smaller range than the base Farnell service.

    My test list: Farnell £32.21, CPC £40 (inc £4.25 delivery charge), both inc VAT.

  10. #20
    Good price here on Ebay for e-stops. Ordered two. Already got one e-stop in with the DIYCNC bundle but want one on the driver box, one on the machine (X-Y section) and another on the Z-axis assembly.

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