Signatone Micropositioner

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

S-725

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.

The bent spring goes on the side

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-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

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-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