blog/data/2009-04-13-reprap.txt

   1 Title: Reprap stepper motor RJ45 pinout
   2 Tags: english, nuug, reprap, 3d-printer
   3 Publish: 2020-01-01
   4 Date: 2009-04-13 10:00
   5
   6 Since my last reprap update, a lot of progress has been made.  I write
   7 this blog post in English instead of Norwegian, because I have some
   8 proposals regarding cabling I would like to reach the entire reprap
   9 community.
  10
  11 I managed to complete the building of the reprap cartesian robot
  12 before Go Open 2009, but ran into some problems when trying to get it
  13 working.  The axes are not moving smoothly, and the motors have
  14 problems pulling the bands with enough force.  More on that later.
  15
  16 <p>When connecting the electronics, I decided to follow the lead of
  17 the next generation of electronics, and use RJ45 connectors to plug
  18 everything together.
  19
  20 I bought connectors at Clas Ohlsson,
  21 <a href="http://www.clasohlson.no/Product/Product.aspx?id=61105401">part
  22 number 38-2224 "Modularuttak RJ 45/splinttilkobl."</a>.  I also got
  23 some from ELFA, part number 42-687-77 "Jack för panelmontage" after
  24 emptying the stock at Clas Ohlson Storo.
  25
  26 I went a bit further and use RJ45 connectors to connect to the stepper
  27 motors and to connect the stepper motor driver cards with the arduino
  28 controller.</p>
  29
  30 <p>For the motor, I decided to pass all motor cables through the RJ45
  31 cable for maximum flexibility in the future, and short the cables used
  32 to change the unipolar motor into a bipolare one on the controller
  33 card side.  I further decided to stay close to the color coding used
  34 in TP cables when connecting them to the RJ45 connector, and thus
  35 connect green with green, blue with blue, orange with red and brown
  36 with black.  This give me the following pinout:</p>
  37
  38 <table>
  39 <tr><th align="left">RJ45</th><th align="left">Stepper motor</th></tr>
  40 <tr><td>pin 1 org/wht </td><td>red/wht</th></tr>
  41 <tr><td>pin 2 org     </td><td>red</th></tr>
  42 <tr><td>pin 3 grn/wht </td><td>grn/wht</th></tr>
  43 <tr><td>pin 4 blu     </td><td>blu  (short with pin 5 red/wht on controller side)</th></tr>
  44 <tr><td>pin 5 blu/wht </td><td>blu/wht</th></tr>
  45 <tr><td>pin 6 grn     </td><td>grn  (short with pin 7 blk/wht on controller side)</th></tr>
  46 <tr><td>pin 7 bwn/wht </td><td>blk/wht</th></tr>
  47 <tr><td>pin 8 bwn     </td><td>blk</th></tr>
  48 </table>
  49
  50 <p>For the connection from the stepper motor controller to the
  51 arduino, I followed the pin numbering used by the IDC connector in the
  52 next generation electronics, mapped to an RJ45 plug:</p>
  53
  54 <table>
  55 <tr><th align="left">RJ45</th>      <th align="left">Stepper motor controller</th></tr>
  56 <tr><td>pin 1 org/wht (unused)</td> <td>VCC</td></tr>
  57 <tr><td>pin 2 org</td>              <td>GND</td></tr>
  58 <tr><td>pin 3 grn/wht</td>          <td>Step</td></tr>
  59 <tr><td>pin 4 blu</td>              <td>Dir</td></tr>
  60 <tr><td>pin 5 blu/wht</td>          <td>Enable</td></tr>
  61 <tr><td>pin 6 grn</td>              <td>Min</td></tr>
  62 <tr><td>pin 7 brn/wht</td>          <td>Max</td></tr>
  63 <tr><td>pin 8 brn (unused)</td>     <td>N/A</td></tr>
  64 </table>
  65
  66 <p>I plan to map the other controller card connections to RJ45 too.
  67 Will try to keep power on pin 1 and ground on pin 2, and put control
  68 signals on the rest.  One sad issue is that the print head controllers
  69 (DC motor, PWM and temerature) in total uses 9 pins - one to many for
  70 the RJ45. :( Guess I will have to find another connector for these.  I
  71 will have to keep an eye on the plans to make print heads
  72 hot-swapable, and see what kind of connector will be used there.
  73
  74
  75
  76  - z axes - remove springs and spacers
  77
  78
  79 Skrivehodeutfordringer
  80 ======================
  81
  82 http://www.futurlec.com/Pictures/HDPIN.jpg
  83
  84 elfa artikkelnummer 43-833-86 eller 43-833-78 ?
  85 43-009-64
  86
  87 varmetrådstørrelse 0.25mm diameter, areal ca. 0.0509mm^2
  88 "AMPMODU hylsa 0,04-0,09 mm²" (43-833-86)
  89
  90 kjøpte "AMPMODU hylsa 0.13-0.36 mm²" 43-833-78, da de måtte bestille
  91 den mindre varianten.
  92
  93 http://renoirsrants.blogspot.com/2009/04/coach-bolt-hack.html
  94
  95 plastsveisetråd
  96 http://www.inter-supply.no/site/maler/x/?case_vis=artikkel&HmenyID=12&artikkelid=15&v_meny2=3
  97
  98
  99 http://objects.reprap.org/wiki/Builders/Alternative_firmware
 100
 101 kapton-tape:
 102  Elfa - 80-899-97 eller 80-900-29, hhv 12 og 19 mm bred, og dyr :)
 103
 104 Elfa - 80-899-97 eller 80-900-29, hhv 12 og 19 mm bred, og dyr :)
 105 <divid> pere: 80-907-07 for 33 mm