LONGER B1 30W. Just assembled and followed all directions. Upon connecting to Lightburn, the laser gantry moves to the left and continues to try moving past the limits of the gantry, slipping the gear belt. It then gives me an error code 9 and wont allow me to position it anywhere else on the board. Have to turn the machine off to stop the gantry from trying to move past 0.
Technically, the gantry is the part the laser head runs front to back (Yaxis) on. The laser head travels in the Xaxis riding on the trolley.
So… The trolley goes toward the limit switch, but does not stop?
Either the limit switch is not being reached, or the limit switch circuit is bad. this can either be a bad switch or a wiring issue.
Power up the machine. wait a few seconds, and then slowly push the trolley to the switch. If mechanical, you should hear a click. If electronic, a LED will either come on or go off.
Thanks for the quick reply. Ah yes the trolly doesn’t engage the limit switch. It’s about 1cm away from the trolly at the left limit. There is no additional set of milled holes to adjust the limit switch closer so it engages. Idk if this is a manufacturer error but I reread and watched the assembly videos a bunch and everything is correctly assembled. Any ideas?
Not without a picture of it. My Sculpfun came with Home switches (2), but I added limit switches (6) to my Sainsmart CNC.
You can see in the middle of the pic the silver limit switch about 1cm away from the trolly with the trolly pushed all the way over
When you push the trolley over, does it make a hard clunk or does it just stop?
If you put this thing together, I suspect no clunk. That could be the wire bundle to the laser is holding it back.
it’s a hard clunk. The gantry came assembled with the trolly so I just had to put it on the side rails wires holding it up. There aren’t any wires holding it up or getting caught on the raid, I thought the same possibility initially. It’s possible there’s something on the inside of the track where I can’t see that’s causing the hard stop like the end of a screw or something. So I might have to take it all apart to further investigate.
Sounds like you are going to find it. You bight start with a flashlight and mirror before taking it apart.
Going off the clock here. Will learn your progress in the morning.
Found the issue. A screw made for the limit switch was too long and hitting the trolly on the inside. Just backed it out a bit and it works just fine.
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