Hi guys, I know this thread is old, but I bought an equal body tool setter and... of course I could not managed it to work... so I opened it.
Just in case someone buy it and want to know how it should work.
Attached some photos (and so the correct, I think, wiring):
This wiring has two contacts switches only:
black and red (long springy contact)
yellow and green (short fix contact)
Under the metal button there are 2 plastic parts, the first being the top of the body of the setter with the hole to insert the setter pole and the spring between them, the second is inside and (should be) attached to the metal button pole. Inside there are other two poles as guides to the sliding plastic (and to impede rotations...).
The first plastic (the top) has a pcb with two exposed parts = contacts, the second plastic has the two metal contacts (one springy).
SO, it should work like this:
IDLE: when not pressed, the two black plastic parts are one near the other, so both the contacts are closed.
TOOL MEASUREMENT: when the tool press a little, the central pole (that should be attached to the bottom black plastic part..) goes down and moves the bottom black plastic part away from the upper black plastic part, so the fix contact (yellow wire to green wire) opens and the tool is set. At this stage the springy contact remains closed.
OVERPRESSED: if for some reason the green/yellow fix contact does not open, than the black plastics parts keep on moving away from each other and also the springy contact (black/red) will open.
Where are the problems?
1) The lower plastic that should be well attached to the button pole... it's not well attached (can slide!). Mine had a little spring-fixing washer but it was so poorly fixed that it came off... If it can slide, contacts distance changes.
Being not fixed, the total height of the probe can changed from measure to measure... and being different from the height programmed in the software... the tool results not correct...
2) The spring does not always push the button back to the idle position (where both contacts are closed), so the yellow/green contact remains open like when the tool is already pushing the button.
I will try to fix both problem but for sure this is an unreliable probe... My idea is to put a thread M3 on the bottom of the button pole
and put a nut over and under the plastic that should not slide on it, so to block it on the pole. To do this I will need to drill (mill?) a little inside that plastic because the pole is too short and there is no space for the nuts. I don't have an M3 female threading now... but.. in the future.. let's see.
I opened it because when I received mine, the yellow/green contacts were always opened (as in problem n 2).
Photos attached if interested.
Have a nice day, Alberto.
