Difference between revisions of "Allied MultiPrep"
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Tach board | Tach board | ||
| − | * Adapts 8 pin to 4 pin | + | *Adapts 8 pin to 4 pin |
| − | * Includes cap + 4 pin SMD component (489, probably hall effect sensor) | + | *Includes cap + 4 pin SMD component (489, probably hall effect sensor) |
| − | * Must interface to those two red things I was confused about...looks like they have magnets on the end<br /> | + | *Must interface to those two red things I was confused about...looks like they have magnets on the end |
| + | *Minitek 4x2 | ||
| + | **1: 4x1.1 | ||
| + | **2: 4x1.3 | ||
| + | **3: hall, cap | ||
| + | **4: hall | ||
| + | **5: 4x1.2 | ||
| + | **6: 4x1.4 | ||
| + | **7: hall, cap | ||
| + | **8: chassis ground<br /> | ||
==McMaster== | ==McMaster== | ||
Revision as of 07:17, 24 February 2020
Motor
Both motors (drive, osc) were identical
PITTMAN GM8712-41 19.1 VDC 187:1 RATIO MFG 05-29-98 S
33 and 17 ohm. Is one of these damaged? Why are their resistances so different?
Tried testing under load
- black goop
- 12.19 V @ 1.266 A (current limited)
- 8 ohm after
- other
- Initially drawing way less current than first
- 12.12 V @ 0.332 A (voltage limited)
- then started smoking
- 11.68 V @ 1.248 A (current limited)
- 6 ohm after
- Initially drawing way less current than first
Aren't these rated 19.1 V? Am I misunderstanding?
Try pinning out the spare bad head
- 1-5: 2.8 k
- 2-6: 147 R
- weird...
what does the secondary machine test? (believe good)
- 1-5: 9.0 R
- 2-6: 10.4 R
What is max voltage allied puts out on motors?
- 1-5
- 7.6 (fixed)
- osc
- 2-6
- 15.0 (max)
- drive
Head connector
Head plug
- 4x2 (8 pins)
- 3 mm pitch
- Head female, cable male
- Maybe Minitek Pwr™ 3.0 Series
- https://www.digikey.com/product-detail/en/amphenol-icc-fci/10132445-08LF/609-5283-ND/7590945
| Mini-amphenol | mini-DIN | Signal | Note |
|---|---|---|---|
| 1 | 1 | ||
| 2 | 2 | ||
| 3 | 8 | ||
| 4 | 7 | ||
| 5 | 3 | ||
| 6 | 5 | ||
| 7 | 6 | ||
| 8 | N/C |
| Mini-amphenol | mini-DIN | Signal | Note |
|---|---|---|---|
| 1 | |||
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| 6 | |||
| 7 | |||
| 8 |
Motor on mini-DIN
- 1: drive motor +
- 3: drive motor -
- 7 V
| Mini-amphenol | cpc | Signal | Note |
|---|---|---|---|
| 1 | 8 | ||
| 2 | 6 | ||
| 3 | 1 | ||
| 4 | 4 | ||
| 5 | 5 | ||
| 6 | 3 | ||
| 7 | 2 | ||
| 8 | N/C |
Tach board
- Adapts 8 pin to 4 pin
- Includes cap + 4 pin SMD component (489, probably hall effect sensor)
- Must interface to those two red things I was confused about...looks like they have magnets on the end
- Minitek 4x2
- 1: 4x1.1
- 2: 4x1.3
- 3: hall, cap
- 4: hall
- 5: 4x1.2
- 6: 4x1.4
- 7: hall, cap
- 8: chassis ground
McMaster
2020-01-14
- Win cross sectioning kit
2020-02-20
- Order sample holder
- Order replacement tubing
- Later found I had some spare, but meh can use for other projects
Primary
S/N 568
Hermitage: Allvia Sunnyvale? Not sure if they are still in business
2019-12-19
- Submitted offer. Negotiations failed
2020-02-19
- Seller accepted offer (was firm at old offer). Local pick up
2020-02-232
- Swap DRO from spare to primary machine
- Replace rusted micrometer
2020-02-23
- Observe osc motor is not moving
- Observe osc doesn't have slit like spare to keep in place...how is it supposed to work?
- Is this a DRM thing of sort where they didn't supply the right adapter if the user didn't purchase osc option?
- ie the motor was intentionally disabled and also mechanically hindered
Spare
???
- Won a few lots of parts TechPrep heads
- Goal: combine into one good head and mount on SBT machine
2019-03-20
- Try to get old TechPrep base. Negotiations failed
2019-12-20
- Won old TechPrep base machine. Change plan from retrofitting SBT machine to actually fitting on this machine
- Without reference machine a little difficult to piece together
- Machine filthy. Significant cleaning
2020-02-23
- Used reference machine to greatly accelerate repairs
- Made cable to hook up head
- E1.43 (error code?) persists, but machine seems to work fine
