Register To Comment
Page 7 of 19 FirstFirst ... 5678917 ... LastLast
Results 61 to 70 of 184

Thread: 300A VESC in the works, feature suggestions wanted

  1. #61
    TechAUmNu's Avatar
    Roboteer

    Status
    Offline
    Name
    Euan Mutch
    Robots
    Robots: Triforce(HW) ESCS: A200S & A450S (in progress)
    Location
    Edinburgh, UK
    Posts
    283
    Its running at 12v due to the better availability of dc-dc converters at that voltage. Although since the 12v supply is off board I could change it to 15v or higher if needs be.

  2. #62
    Rapidrory's Avatar
    Roboteer

    Status
    Offline
    Name
    Rory Mangles
    Robots
    Nuts, Big Bully, Richie, and too many insect class bots
    Location
    Somerset
    Posts
    340
    Ah ok 12v will be plenty. I usually use an adjustable dc-dc converter so I can tune the drive voltage once I've got it running.

  3. #63
    TechAUmNu's Avatar
    Roboteer

    Status
    Offline
    Name
    Euan Mutch
    Robots
    Robots: Triforce(HW) ESCS: A200S & A450S (in progress)
    Location
    Edinburgh, UK
    Posts
    283
    First quote for the laser cut copper came back at £75 per set from daysteel.co.uk. Still waiting to hear back from other companies.

    At that price I would be better to cnc cut them myself.

    Have also asked for a quote from KCut since copper is much easier to waterjet.
    Last edited by TechAUmNu; 25th July 2017 at 11:47.

  4. #64
    Roboteer

    Status
    Offline
    Name
    N/A
    Robots
    The Unnamed, Bourbon, Deadlock
    Location
    UK
    Posts
    128
    I've used Lasermaster quite reasonably in the past.

  5. #65
    overkill's Avatar
    Member

    Status
    Offline
    Name
    Nick Martin
    Robots
    Mr Mangle - Australian 2015 Featherweight Champion 2016 UK Gladiator Shiny Scissorhands Decimator
    Location
    Sydney Australia
    Posts
    888
    For prototyping at least, why not bend some really heavy duty copper wire to shape? Its cheap 'n easy to get started with.

  6. #66
    TechAUmNu's Avatar
    Roboteer

    Status
    Offline
    Name
    Euan Mutch
    Robots
    Robots: Triforce(HW) ESCS: A200S & A450S (in progress)
    Location
    Edinburgh, UK
    Posts
    283
    I do have some copper wire already but I would rather test with something close to the final design. Since the heatsink contacts the copper it needs to be flat.

    I sent a quote to lasermaster but they are still to get back to me.

  7. #67
    emisnug's Avatar
    Member

    Status
    Offline
    Name
    Robert Keyes
    Robots
    Big Dave 3 (HW), Boing! (FW - In Design)
    Posts
    77
    Graham over at GSD Tech should be able to help you with most things we've used him for a lot of our custom parts with great success - graham@gsdtechnologies.co.uk

  8. #68
    TechAUmNu's Avatar
    Roboteer

    Status
    Offline
    Name
    Euan Mutch
    Robots
    Robots: Triforce(HW) ESCS: A200S & A450S (in progress)
    Location
    Edinburgh, UK
    Posts
    283
    Quote Originally Posted by emisnug View Post
    Graham over at GSD Tech should be able to help you with most things we've used him for a lot of our custom parts with great success - graham@gsdtechnologies.co.uk
    Thanks, I sent him a message and he got back to me on it.


    In other news, the 10 prototype pcbs have finished being manufactured and are on the way to me.
    unnamed.jpg

  9. #69
    typhoon_driver's Avatar
    Member

    Status
    Offline
    Name
    Gary Cairns
    Robots
    Hornet 2 - retired Boner - retired Smidsy - Sold 540 - Sold PP3D - Active
    Location
    Aberdeenshire
    Posts
    4,443
    I recently found a local outfit to me to be very reasonable water cutting pricing wise, www.poseidonengineering.com

    Their minimum invoice value is £40

  10. #70
    TechAUmNu's Avatar
    Roboteer

    Status
    Offline
    Name
    Euan Mutch
    Robots
    Robots: Triforce(HW) ESCS: A200S & A450S (in progress)
    Location
    Edinburgh, UK
    Posts
    283
    First batch of components have been ordered! Should arrive some time next week. Has enough of the expensive parts to do 2 boards for prototyping and enough passives to last a lifetime. (Total of 33356 components lol)
    mouser order.png
    Got some 0.3mm solder and a couple of programmable bench power supplies. To make my life easier.

    Also got some of these nice big thermal pads
    http://eu.mouser.com/search/ProductD...67-PL-2-1-1016

    Will be contacting lasermaster on monday to tell them to go ahead with the copper bus bars.


    As of now the BOM is basically complete and comes to £180 per board for 100 boards. Including power and logic boards (Not including assembly), heatsink and thermal pad and lasercut copper bus bars.

Register To Comment

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •