I've acquired 2 or 3 K2 IND systems and have mixed/matched parts to combine them into a working system.
Basically what happened was I tried really hard to get one at local auction but kept getting outbid. I found one at reasonable price on eBay (after some negotiation) and acquired it. However, it didn't come with any objectives. Somehow after this I managed to win a very nice system at industrial auction for pretty low price (lower than the objectives would have cost on eBay). I ultimately had to mix/match parts from the two systems to get good optical quality.
Nikon clamps are 8-32 (revolving nosepiece and such)
Given the quality of this system and how much I bid to get other systems, this system has been surprisingly low cost to build.
Combining parts into a working high quality system composed of:
|Zygo / Tech Inst||KMS310RT||Chassis||KMS310RT||base / Z axis|
|Nikon||HB-10103AF||Lamp PS||KMS310RT||Mercury burner PS|
|Tech Inst?||?||XY stepper table||Disp Serv XY|
|Compumotor||M57-102||XY stepper driver||Disp Serv XY|
|Gecko||G320X||Z servo driver||Gecko|
Came with a gecko!
10x, 20x, 50x, 100x
Missing the 5x, has a slot for it
|Nikon||?||Observation tube, trinocular||Nikon K2||Original system was binocular|
|NRC||Model 39||Tilt correction||eBay||Mirror mount|
|McMaster||Enclosed pr0ndexer||Indexer||Digikey, Amazon|
|Lenovo||t61p||Control laptop||weird stuff|
Motorized Z axis
Above: Zygo electronics overview
Have this sort of working using Gecko drive but not very well
|Signal||Encoder wire||Cable wire||Notes|
|Z||Yellow||N/C||Probably once-per-rev reference mark|
Motor: Harmonic Drive "HiT Drive SERVO ACTUATOR, RH-11-6001-E100DO5"
- Encoder (sold with motor): ENCODER-02A 1000P /R
Website] decoding of RH-11-6001-E100DO5:]
- RH Type: RH mini series
- 11 size 11
- 60 Output shaft rated rotational speed (r/min) 60 r/min
- 01 Rated output (W) x10 10 W
- E incremental encoder
- 100 encoder resolution 1000p/r
- D Encoder power supply 5-12
- Case says 5V
- O: open collector
- 5: ?
- Not a special suffix
- indicates 5V operation?
Glass rotary encoder with open drain outputs.
I opened this up because I was having trouble getting signal (2014-09-29) and thought it might have been broken. Now I know it was just an open drain vs actively driven issue.
Above: troubleshooting encoder signals
When I asked Gecko about my linear encoders they didn't seem that familiar with them (which seems a bit odd but w/e). In any case, they recommended the follow qudrature encoders:
- CUI AMT102-V
- US Digital quadrature encoder
"super high pressure mercury"
Model: Nikon LH-M100CB-1
Use bulb: USH-102DH
Not original stage but roughly footprint compatible
Control cable is a DB-9 to funky female connector
FIXME: think table is wrong. Conflicts with M-Drive appendix C and motor isn't working
|DB-9 pin||Indexer pin||Cable color||Name||Notes|
|3||C||Blue||SHUT+||N/C if unused|
|4||F||Brown||SHUT-||N/C if unused|
Had a driver box but it got lost in the move.
Trying to troubleshoot why not moving. Notes from a while back
20 mA drive required
100 ohm resistor + diode
(3.3 V - 0.7V) / 100 = 0.026
Currently using 5V. Is that somehow too much?
Driver boxes are on: motors are locked in place. Any chance the shutdown input got triggered?
Double checked pinout vs above and it sounds like its wired correctly with step/direction
Maybe try switching them if its backwards somehow?
Can't find the k2 stepper config. How many steps per mm?
M-Drive manual has note:
TTL Inputs: 3.5 to 6.0 V pulse height
500 ns pulse width minimum
20 mA minimum current
1 MHz maximum pulse rate
|STEP OUTPUT +||RED|
|STEP OUTPUT -||BLK|
|DIRECTION OUTPUT +||GRN|
|DIRECTION OUTPUT -||WHT|
|SHUTDOWN OUTPUT +||BLU|
|SHUTDOWN RETURN -||BRN|