I do not have the spec as i called in favour from a company I do work for. They sent mine to a "supplier who makes load cells. It came back sealed but I believe they used two half bridge cells to make it up. I can ask if they will give me the spec. What country are you in?I have a machine here with exactly the same issue (although this one is going about 10 kilo's above calibration). I've replaced the flatcable (these are known to delaminate and die), I've switched the offset board to exclude issues with the measuremnets / amplification and it made no difference. This weekend I will replace the loadcell as it's likely broken. @Mike345 Do you have the specsheet for the replacement straingauges? Reason I'm asking is that I'm in contact with a cell manufacturer and I may have them do a run of cells to get a bunch of these babolats working again. They can take it from an existing cell, even a broken one, but an actual spec sheet would be best. Creating the aluminium bars is not an issue, it will take 5 minutes to program the CNC and cough up enough of them to sink a battleship...
How much is he charging?I'm in Holland. Right now I'm using the service of a guy in Germany for a loadcell repair, but he's been doing essentially the same routine: he found a company to repair or replace the strain gauges. It's pretty expensive though. Given that there are tons of machines waiting for a new cell, I want to try to get a bunch manufactured. I could even go to a Chinese manufacturer if I can get all the specs sorted. Chances are it's cheaper and the quality would probably be a lot better than what Babolat used 25 years ago..
It looks like you modded the adjustment wheel on your Yonex/Kimony starting clamp. Would you be willing to elaborate on what you did?I will definitely want one load cell as spare part though my star 4 still works fine.
Hi Galicia,Continue with the subject of calibration, if someone has the load cell broken; we need babolat to give us the data sheet.
Do you know if possible to get specs of the load cell of CR40? If not is it possible the data sheet of CR50? THANKS
hello @Mike345Just a thought. Did you try setting all three potentiometers to the middle of there range. Count 20 turns counter clockwise then 10 back clockwise. Pot 3 next to the head needs to read 0.9 volts secret button 4 should read 000, then try calibrating the pulling tension, if you can do this whilst having a test meter across the gold pins you will notice you have to balance pot 3 and pot 1 adjustments against each other. Do this set to 60lb or 27kg.
This may cheer you up, if the load cell is damaged.
I can now get the load cell repaired, its possible to fit new strain gauges to the beam load cell.
As long as aluminium load beam has not been bent or over stretch.
I'm looking into getting new beams CNC machined but will need to see if this is cost effective with the cost of fitting the new strain gauges as well.
hello Josh (@Babolat Official)Hi Galicia,
I will reach out to Babtec and let you know if they have any information for you.
Close to 300. It works though, you can see they replaced the strain gauge and the machine works ok, calibrates almost as original (it's a little off but not much).How much is he charging?