I just got a TwoTrees TTC450 a few weeks ago. I’ve been using Candle to control it but there are several things I don’t like - not the least of which it is soon to not be supported on MacOS with the next OS release.
The control board is using GRBL 1.1H and I can connect and control it with gsender which is what i’m hoping to use as I like the interface much better than Candle but I cannot get the Z probe (2 pin) to register in gesnder at all. After a lot of searching and Chat GPT, it was suggested that I needed to switch the wiring on the pins of the probe. I did this. It works with the machine controller. Works in Candle. Still absolutely nothing in gaender. It doesn’t register anythingi tried the invert pin option and it stops functionality on the machine controller and in candle but still no connection in gsender
I know there are people using gsender with this machine. I do not know what the problem is. Any ideas?
This is a shot in the dark but what is grbl setting $10 Status Report Mask set to? If it’s not set to 1 try setting it to 1. I know gSender gets some info from that report so worth checking/trying IMHO.
I tried that yesterday before posting with $10 at 0-3 and none of them did anything as far as gsender recognizing the sensor. It really makes no sense to me what is going on. I have another probe ordered but I don’t expect the results to be any different as it’s the same type only it moves the plug from directly attaching to the box on the z axis. It has a short tether that stays attached to the box and then plug the probe into the tether instead of directly to the box which will be better but I don’t expect different results. I just don’t understand why it works perfectly in candle and with the control box
That has me stumped as well. I can’t think of a reason for it to work in Candle and not in gSender. I didn’t have high hopes for my suggestion because it worked in Candle but it was all I could think of.
@jemmicat I’ve moved your issue to the gSender category so that the gSender group at Sienci will see it.
As an aid to them, can you link to the probe that you are using?
This is the probe mine came with the TTC450 pro itself. I cannot seem to post a link. It is an acrylic puck with a metal block in the center and an alligator clip to attach to the bit
@jemmicat Understood. I can’t find it on the TwoTrees site. It’s not particlarly important that I can. When you say that you switched the wiring, do you mean that you tried the two settings in gSender to invert the probe pins and/or invert the tls input set out here?
I tried the settings in the firmware (changing it to invert) and it failed instantly in candle and on the machine itself but no change in gsender behavior (no green light) and then I also switched the pins in the connector (signal to puck and gnd to alligator) and it still worked in candle and on the machine but still nothing in gsender. I have tried gsender 1.5.7 and the latest edge release and the same behavior on both
@jemmicat when you’re connecting to gSender, is the connection in the top corner appearing as grbl or grblHAL? that might help narrow things down. Also, when the probe is triggered, you should be able to go to the Carve screen to the bottom, right ‘Console’ tab and send “?” as a command, and you should see a “Pn:” response that shows the probe as triggering, if you don’t see this then it would mean that gSender isn’t able to get access to your machine pin status
One thing I forgot to mention is that you need to set $10=19 first for this to work, then set it back to $10=3 afterwards if it does.
I have the same problem. G Sender seems to recognize the probe connection but will not activate the process. It seems you have to do that off of the two trees control box