User:Mcmaster/Pr0ncnc - Revision history

Mcmaster at 04:05, 3 February 2020

2020-02-03T04:05:50Z

Mcmaster at 02:09, 5 March 2019

2019-03-05T02:09:17Z

Mcmaster: Created page with "pr0ncnc is the standard platform that I use to build my CNC microscopes. A typical system consists of: uvscada for high level control AmScope MU800 camera ** Driver bo..."

2018-12-26T13:47:57Z

Created page with "pr0ncnc is the standard platform that I use to build my CNC microscopes. A typical system consists of: ** uvscada for high level control ** AmScope MU800 camera ** Driver bo..."

New page

pr0ncnc is the standard platform that I use to build my CNC microscopes. A typical system consists of:

** uvscada for high level control
** AmScope MU800 camera
** Driver box
** BBB running machinekit
** BBB cape w/ optional CD4050 3.3V => 5V boosters
'''''' XYZ output standard
** Connected over USB w/ static USB-ethernet bridge IP
** Case: Hammond 1591-E
** TODO: standard rubber feet
** IMS MDrive stepper motors (such as MDrive17 or MDrive23)
** Linear stages vary
** Step/direction connectors: Combicon 4 pin
** TODO: move to mini connectors
** Where applicable, bipolar motors use Combicon 5 pin
** Newport 39 mirror mount (tip tilt stage)

BBB bolt pattern

** WARNING: not square. According to breakout.py:
** 0.000, 0.000
** 0.000, 1.900
** 2.600, 0.125
** 2.600, 1.775
** For 4-40 standoffs into case
** Standoffs are CA glued in
** Standoffs should not peek out other side
** Consider putting Kapton on back in case they stick through slightly
** Need tight fit. Drill size?

= Motor connector =

Although there is a de-facto DB25 standard for step/direction pulses (from Compumotor?), I don't like DB25 connectors. Instead I use Combicon connectors since I can quickly wire them up and plug/unplug them.

#29 drill for panel mount Combicon bolt holes using 6-32 SHCS

Cable colors

** Step+: red (left)
** Step-: black
** Dir+: blue
** Dir-: white (right)

= BBB 5V cape =

Defunct: I now use b3index

Based on CRAMPS pinout

[File:mcmaster_brainscope_bbb_breakout_5v.png]

P8

{| class="wikitable sortable" border=1
! Pin !! CPU GPIO !! CNC function !! I/O !! Color !! Note
|-
| 12 || gpio1[12] || X dir || O || White ||
|-
| 13 || gpio0[23] || X step || O || Blue ||
|-
| 14 || gpio0[26] || Y dir || O || White ||
|-
| 15 || gpio1[15] || Y step || O || Blue ||
|-
| 18 || gpio2[1] || Z dir || O || White ||
|-
| 19 || gpio0[22] || Z step || O || Blue ||
|-
|}

Colors

** Dir: white
** Step: blue

I'd like to stick with 5 V CMOS style outputs since all my units can take those

** Traditional drivers are optocopulers and take resistor limited +/- 5V inputs
** MDrive17, MDrive23 basically 5-24V open drain but can also operate CMOS

IMS MDrive probably don't take much current (TODO: verify)

My Compumotor M-Drive requires 20 mA min

** CD4050 can typically only source 3 mA or so
** HEF4050 can do 20 mA max…borderline
** Sparkfun BOB-12009 theoretically can do 220 mA

Originally I shied away from the BOB, but think I can simplify the soldering process to make it more attractive

= BBB pinout =

[[File:mcmaster_pr0ncnc_p8_pinout.png|600 px]]

[[File:mcmaster_pr0ncnc_p9_pinout.png|600 px]]

= Camera calibration =

Put white piece of paper under camera

Run manbal.py to get RGB values

Adjust V4L controls until balanced

Place V4L control values into microscope.json

** see example configs for specific usage

= Combicon misc =

[[File:phoenix_combicon_combicon_pins.jpg|400 px]]

Pin 1 on the left when
* Female: looking in with round side down

= Motor cables =

Use 5 pos combicon for bipolar motors (wires: 2 A, 2 B, GND)

BOM
* Molex 1552200235 (Digikey WM15664-10-ND)
* Phoenix Contact 1786200 (Digikey 277-5776-ND)
* Phoenix Contact 5448640 (Digikey 277-11353-ND)

Notes:
* 6' cables
* Cut sheath 2" from ends
* Expose wire 3/8"
* 3" of heatshrink (think its 1/2")

Pins (ordered by color code):
* 1 Black
* 2 Brown
* 3 Green
* 4 Blue
* 5 White

= Power cables =

Two position combicon

Pins (ordered by color code):
* 1 Black
* 2 Red

@@ Line 1: / Line 1: @@
 pr0ncnc is the standard platform that I use to build my CNC microscopes.  A typical system consists of:
-** uvscada for high level control
+* uvscada for high level control
-** AmScope MU800 camera
+* AmScope MU800 camera
-** Driver box
+* Driver box
 ** BBB running machinekit
 ** BBB cape w/ optional CD4050 3.3V => 5V boosters
-'''''' XYZ output standard
+*** XYZ output standard
 ** Connected over USB w/ static USB-ethernet bridge IP
 ** Case: Hammond 1591-E
 ** TODO: standard rubber feet
-** IMS MDrive stepper motors (such as MDrive17 or MDrive23)
+* IMS MDrive stepper motors (such as MDrive17 or MDrive23)
-** Linear stages vary
+* Linear stages vary
-** Step/direction connectors: Combicon 4 pin
+* Step/direction connectors: Combicon 4 pin
 ** TODO: move to mini connectors
-** Where applicable, bipolar motors use Combicon 5 pin
+* Where applicable, bipolar motors use Combicon 5 pin
-** Newport 39 mirror mount (tip tilt stage)
+* Newport 39 mirror mount (tip tilt stage)
 BBB bolt pattern
-** WARNING: not square.  According to breakout.py:
+* WARNING: not square.  According to breakout.py:
 ** 0.000, 0.000
 ** 0.000, 1.900
 ** 2.600, 0.125
 ** 2.600, 1.775
-** For 4-40 standoffs into case
+* For 4-40 standoffs into case
-** Standoffs are CA glued in
+* Standoffs are CA glued in
-** Standoffs should not peek out other side
+* Standoffs should not peek out other side
-** Consider putting Kapton on back in case they stick through slightly
+* Consider putting Kapton on back in case they stick through slightly
-** Need tight fit.  Drill size?
+* Need tight fit.  Drill size?
 = Motor connector =
@@ Line 38: / Line 40: @@
 Cable colors
-** Step+: red (left)
+* Step+: red (left)
-** Step-: black
+* Step-: black
-** Dir+: blue
+* Dir+: blue
-** Dir-: white (right)
+* Dir-: white (right)
 = BBB 5V cape =
@@ Line 49: / Line 51: @@
 Based on CRAMPS pinout
-[File:mcmaster_brainscope_bbb_breakout_5v.png]
+[[File:mcmaster_brainscope_bbb_breakout_5v.png]]
 P8
 {| class="wikitable sortable" border=1
-!  Pin !!  CPU GPIO !!  CNC function !!  I/O !!  Color !!  Note
+!  Pin !!  CPU GPIO !!  CNC function !!  I/O !!  Color !!  Note |
 |-
 |   12  ||   gpio1[12]  ||   X dir   || O  || White  ||
 |-
 |   13  ||   gpio0[23]  ||   X step   || O  || Blue  ||
 |-
 |   14  ||   gpio0[26]  ||   Y dir   || O  || White  ||
 |-
 |   15  ||   gpio1[15]  ||   Y step   || O  || Blue  ||
 |-
 |   18  ||   gpio2[1]  ||   Z dir   || O  || White  ||
 |-
 |   19  ||   gpio0[22]  ||   Z step   || O  || Blue  ||
 |-
 |}
@@ Line 72: / Line 74: @@
 Colors
-** Dir: white
+* Dir: white
-** Step: blue
+* Step: blue
 I'd like to stick with 5 V CMOS style outputs since all my units can take those
-** Traditional drivers are optocopulers and take resistor limited +/- 5V inputs
+* Traditional drivers are optocopulers and take resistor limited +/- 5V inputs
-** MDrive17, MDrive23 basically 5-24V open drain but can also operate CMOS
+* MDrive17, MDrive23 basically 5-24V open drain but can also operate CMOS
 IMS MDrive probably don't take much current (TODO: verify)
@@ Line 84: / Line 86: @@
 My Compumotor M-Drive requires 20 mA min
-** CD4050 can typically only source 3 mA or so
+* CD4050 can typically only source 3 mA or so
-** HEF4050 can do 20 mA max…borderline
+* HEF4050 can do 20 mA max…borderline
-** Sparkfun BOB-12009 theoretically can do 220 mA
+* Sparkfun BOB-12009 theoretically can do 220 mA
 Originally I shied away from the BOB, but think I can simplify the soldering process to make it more attractive
@@ Line 106: / Line 108: @@
 Place V4L control values into microscope.json
-** see example configs for specific usage
+* see example configs for specific usage

User:Mcmaster/Pr0ncnc - Revision history

Mcmaster at 04:05, 3 February 2020

Mcmaster at 02:09, 5 March 2019

Mcmaster: Created page with "pr0ncnc is the standard platform that I use to build my CNC microscopes. A typical system consists of: ** uvscada for high level control ** AmScope MU800 camera ** Driver bo..."

Mcmaster: Created page with "pr0ncnc is the standard platform that I use to build my CNC microscopes. A typical system consists of: uvscada for high level control AmScope MU800 camera ** Driver bo..."