Signatone Micropositioner

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Mcmaster signatone signatone probers.jpg Mcmaster signatone s-900 mostly.jpg

https://www.signatone.com/products/micropositioners/

Probe tip holder

Like the spring tips, but they are sometimes hard to spring back to insert probes

CAP series

CAP-945

Drive motors (can't see whole labels, estimated combination):

 MICRO MO Electronics, Inc
 1624E001 ... 12S123
 16/8  ... 485:1
 HEM1624 ... E1624HF
 KW 34/99

Notes:

  • Motors
    • All three motors appear to be identical
    • "MICROMO is now FAULHABER MICROMO LLC"
    • https://www.faulhaber.com/en/products/series/168/
    • this specs
      • 16/8 485:1
      • N: 5
      • MCont (mNm): 100
      • MInt (mNm): 150
      • n:1: 485:1
    • General specs
      • "Spur Gearheads Series 16/8"
      • Zero Backlash
      • Number of gear stages: 4 ... 6
      • Continuous torque: 100 mNm
      • Intermittent torque: 300 mNm
      • Reduction ratio: 76 ... 1.670
      • Diameter: 17 mm
      • Length: 32 ... 36,2 mm
    • EN_IE2-16_DFF.pdf
      • Motor – *
      • Motor + *
      • GND
      • U DD
      • Channel B
      • Channel A
  • Brought out to DB-25
  • Each axis
    • Cable going to main PCB (5x2 IDC)
    • Only 6 / 10 pins used
    • Two mechanical limit switches (tied into cable)


Motor IDC10
Pin Description Note
1 Motor+

(limit switch NC)

1 to 6: limit switch NC. 24 ohm

Into motor from limit switches


1 to 6 seems to also be motors

seems to be DC

thumb turning gear generating about 4.5V


8V @ 20 mA

20V @ 30 mA

2 Encoder +5V Not sure if actually 5V, but seems to work

One encoder active drew 5 mA

Reverse voltage at one point did something like 1.1V @ 100 mA (current maxed out)


2 to 3: 10k

2 to 4: 10k

2 to 5: 1.7k

3 Encoder A out 3 to 4: 20k

3 to 5: 11.6k


Open drain? Seems to output 5V

4 Encoder B out 4 to 5: 11.6k


Open drain? Seems to output 5V

5 Encoder ground
6 Motor-

(limit switch NC)

COM6

All channels tied together on PCB
7 N/C COM6 on PCB
8 N/C COM6 on PCB
9 N/C COM6 on PCB
10 N/C COM6 on PCB
DB25
Pin Description IDC Note
1 J5.2
2 J3.2
3
4 J3.4
5 J3.3
6 J4.5
7 J5.4
8 J5.3
9
10
11
12
13
14 J4.2
15 J3.1

J4.1

J5.1

16 COM6 (all)
17 J3.5
18 J4.4
19 J4.3
20 J5.5
21
22
23
24
25


Driver?

Gecko G320X: have a few on hand, but pretty overkill / pricey


https://www.tindie.com/products/crispty/quadquad2drv-4ch-motor-controller/

  • Seems like a good candidate, but limited run / out of stock
  • Contacted them, got one on order and talked about future models

CAP-946

S-725

Mcmaster signatone s-725 725.jpg Mcmaster signatone s-725 parts.jpg

The S-725 uses a gimbal mount at the front that pivots as the X or Z leadscrews are turned. These leadscrews put pressure against the leaf springs, noting the springs are not identical.

To disassemble for leadscrew cleaning, loosen the gimbal and gently pull out the arm assembly. You do not need to remove the leaf springs. I also disconnected the final head on the pivot head so that I could fully detach the arm, which was connected via a cable epoxied to the case.

Mcmaster signatone s-725 arm assembly.jpg Mcmaster signatone s-725 leadscrew cleaned.jpg

Mcmaster signatone s-725 side btm.jpg Mcmaster signatone s-725 side front empty.jpg Mcmaster signatone s-725 side front.jpg Mcmaster signatone s-725 side right.jpg

Mcmaster signatone s-725 spring1.jpg Mcmaster signatone s-725 springs.jpg

The bent spring goes on the side

Mcmaster signatone s-725 vac btm.jpg Mcmaster signatone s-725 vac top.jpg


S-M90

SP-100

SP-150

S-900 series

Moderate resolution (roughly 1 um). As of 2018 only the S-926 is in production

Probe arm

Lost the screws on one :(

S-925

S-926

S-930

Has a fine and a coarse adjustment knob. The coarse knobs was seized on all three surplus units mcmaster purchased.


Stripped out screws on side. Smaller than 2-56, might be 0-80. Was maybe going to loctite them in but found parts unit on eBay, going to try to combine. Also looked into heli-cal but couldn't quickly find one of that size (also thread size not confirmed)

Economy micropositioners

Mcmaster signatone s-600 s-750 complete.jpg

Above: 3 S-750 at left, 2 S-600 at right

Low resolution, maybe 10 um.

The S-600 was discontinued in favor of the S-750.

The handle is compatible between the economy positioners. The finer knurled handle is the original one I had while the coarser grained ones were purchased in 2018.

S-600

S-750

"Economy Micropositioner" "The model S-750 was developed specifically for contacting larger areas (Pads)"

Stats:

  • Joystick ratio 9:1
  • Probe scanning area 0.100” x 0.180”
  • Vertical movement “Z” 0.50”
  • Probe pressure: 10 grams