after using the press brake all day with no issues i went back to use it and now the height for the homing is off by about .5 of an inch. anyone else had any issues with this? i checked all the settings and its like its all out of calibration now.
Once you align your backgauge, you will need to move it to slowly touch off the limit switch for the axis you aligned. You will only trigger one limit switch. Then you will need to go to the back of the machine and adjust the limit switch trigger on the limit switch that has not been triggered so that it also just barely clicks. That way the machine will keep the alignment when it homes.
If you are losing this calibration, there are two things that could be shifting:
- The backgauge finger’s position on its mount. You can keep track of the finger’s position using the ruler on its side.
- The limit switch triggers are shifting somehow. You can make sure those are screwed (or jam-nut fastened) tight.
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Im having the same issue. Looks like the cylinders aren’t retracting as far as they did. I can see the dust rings on the shafts, and there is about a 1/2” difference. Sometimes it will have a tonnage fault, and then it will home, and work as it’s suppose it with the exception the travel being off. All the number show right in the screen, just doesn’t home in the correct spot
Are you using the extreme gooseneck punch? It could be failing due to the edges of the extreme gooseneck punches catching on the walls of the machine. Send me some pictures of your settup and the post-homing ram position to support@langmuirsystems.com and I can help you resolve the issue.