1. Just a thread to show these boards, and my build. Not the latest technology but cheap parts and cheap to assemble

    Boards available from Phil Moore, more info here and buy from here

    Parts sourced from Farnell except L297/L298 and the main heatsink which were from Cricklewood Electronics as they were cheaper and I was passing. The main heatsink was one piece, chopped into 3 with a hacksaw and tidied up with a facemill on the Warco (cutting chips at last!)

    First, a pic of the stepper driver board:
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	stepperdrives.jpg 
Views:	825 
Size:	256.2 KB 
ID:	743  

  2. Phil likes using SMD chip capacitors on his boards.

    Here is a technique for holding the capacitor against the board while soldering, using a device constructed from a clothes peg and some coat hanger wire (nothing Heath Robinson here...)
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	boardnchip.jpg 
Views:	240 
Size:	46.9 KB 
ID:	744   Click image for larger version. 

Name:	chiponboard.jpg 
Views:	243 
Size:	50.3 KB 
ID:	745  
    Last edited by irving2008; 16-08-2009 at 04:20 PM.

  3. Here is a view of the completed driver and breakout boards without heatsinks
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	stepperdrives 001.jpg 
Views:	389 
Size:	65.1 KB 
ID:	746  

  4. Final view fitted with heatsinks.

    The large heatsink was bought a a bigger item, cut into 3 using a hacksaw then tidied up on my Warco (cutting chips at last) with a facemill.

    At 36V and 1.5A the heatsinks are needed else both the L298 and the L317 regulator get too hot...
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	stepperdrives 013.jpg 
Views:	638 
Size:	47.3 KB 
ID:	747  

  5. #5
    Looks nice and neat Irving excellent job :clap:

  6. #6
    Ditto. Id be well chuffed if I could solder like that..

    What are they like in use? Do the motors Buzz, hum etc.?

  7. Quote Originally Posted by Ross77 View Post
    Ditto. Id be well chuffed if I could solder like that..

    What are they like in use? Do the motors Buzz, hum etc.?
    only tried unloaded so far, but quiet as a mouse... faint whine if you listen hard...

    soldering's easy - I did my time hand-building pre-production boards, many many moons ago!

  8. #8
    only tried unloaded so far, but quiet as a mouse... faint whine if you listen hard...
    Happy days... Is that in full or half step?

    When I tested my board,(simlar to PMINMO) at 1/2 step they squeeled like little piggys. (probably didnt help as the pulse came from me tapping a wire at o.5v onto the pin :whistling:) havent got around to trying it with the pulser you designed.

    BTW. is that + 0r - edge output? I beleive the L297 requires a - edge.?

Similar Threads

  1. USB breakout boards from China
    By asbo in forum Motor Drivers & Controllers
    Replies: 0
    Last Post: 07-10-2013, 01:29 PM
  2. 542 Vs Geckodrive boards?
    By Musht in forum Motor Drivers & Controllers
    Replies: 18
    Last Post: 13-12-2012, 11:19 PM
  3. breakout boards what are you using
    By wilfy in forum General Electronics
    Replies: 6
    Last Post: 01-12-2012, 12:35 PM
  4. FOR SALE: routout cnc driver boards
    By johngoodrich in forum Items For Sale
    Replies: 12
    Last Post: 24-11-2011, 06:28 PM
  5. DIY Driver Cards - pminmo.com
    By Lee Roberts in forum Electronic Project Building
    Replies: 1
    Last Post: 31-08-2008, 01:01 AM

Bookmarks

Posting Permissions

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