Difficulties in probing

That’s what I thought. Thanks for confirming. It does transition to a slower speed when the float switch trips. I’ll post a backup config when I get home from work.

Thanks for replying!

I have attached a backup of my configuration, so hopefully this will be helpful in finding my problem.

Thanks in advance!
 

Any chance for some video?

That would be really tricky at this point. If the configuration doesn't help, I'll have to figure out how to record and post a short video.

I cant visualize your Z axis setup, so pictures would do, video is not strictly necessary.

At any rate, here is what I see:

You are using hm2_7i96.0.gpio.001.in for both max-z and float-switch. I cant visualize how you could be using the same switch for both functions, so this doesn't seem right to me. I am fairly certain this is the source of your probing angst.

For your ini file, in the [AXIS_Z] section, your MAX_ACCELERATION should be 1500.0 and not 1000.0 (it needs to be double the value of the corresponding joint. Similarly, in the [JOINT_3] section, your STEPGEN_MAXACCEL should be 937.5 instead of 950.0 (assuming you didn't have it set that way to negate some sort of following errors, etc).

Yeah, the question now becomes: do you actually have a floating head with it's separate switch?

tommylight wrote:

Yeah, the question now becomes: do you actually have a floating head with it's separate switch?
 

Precisely.  So hopefully he can provide us some pics/more insight.

At any rate, here is what I see:

You are using hm2_7i96.0.gpio.001.in for both max-z and float-switch. I cant visualize how you could be using the same switch for both functions, so this doesn't seem right to me. I am fairly certain this is the source of your probing angst.

For your ini file, in the [AXIS_Z] section, your MAX_ACCELERATION should be 1500.0 and not 1000.0 (it needs to be double the value of the corresponding joint. Similarly, in the [JOINT_3] section, your STEPGEN_MAXACCEL should be 937.5 instead of 950.0 (assuming you didn't have it set that way to negate some sort of following errors, etc).

 

# external input signals

# --- HOME-Z ---
net home-z     <=  hm2_7i96.0.gpio.000.in

# --- MAX-Z ---
# net max-z     <=  hm2_7i96.0.gpio.001.in

# --- HOME-Y ---
net home-y     <=  hm2_7i96.0.gpio.002.in

# --- MAX-Y ---
net max-y     <=  hm2_7i96.0.gpio.003.in

# --- HOME-X ---
net home-x     <=  hm2_7i96.0.gpio.004.in

# --- MAX-X ---
net max-x     <=  hm2_7i96.0.gpio.005.in

# --- HOME-X2 ---
net home-x2     <=  hm2_7i96.0.gpio.006.in

# --- MAX-X2 ---
net max-x2     <=  hm2_7i96.0.gpio.007.in


 

I thought that I had commented out the max-z. (which is how I had initially set it up in the pncconfig, but plasmac complained about this at startup)  Is this in a different location as well?


Noted on the accelerations which I corrected last night while still trying to figure it out. 

If nothing else, tonight I might try starting over with a fresh pncconfig without a z-max limit switch.

I didn't intend on using both.

Thank you all for your help.

John


 

Jflesburg wrote:

# external input signals

# --- HOME-Z ---
net home-z     <=  hm2_7i96.0.gpio.000.in

# --- MAX-Z ---
# net max-z     <=  hm2_7i96.0.gpio.001.in

# --- HOME-Y ---
net home-y     <=  hm2_7i96.0.gpio.002.in

# --- MAX-Y ---
net max-y     <=  hm2_7i96.0.gpio.003.in

# --- HOME-X ---
net home-x     <=  hm2_7i96.0.gpio.004.in

# --- MAX-X ---
net max-x     <=  hm2_7i96.0.gpio.005.in

# --- HOME-X2 ---
net home-x2     <=  hm2_7i96.0.gpio.006.in

# --- MAX-X2 ---
net max-x2     <=  hm2_7i96.0.gpio.007.in


I thought that I had commented out the max-z. (which is how I had initially set it up in the pncconfig, but plasmac complained about this at startup)  Is this in a different location as well?

Whoops, I looked at this quickly on break at work, apparently too quickly. You are correct, Z was commented out.

I am still not picturing what you have for a probing/z axis setup. Is it possible for you to share pictures or not? It's unclear if you have a floating head, or what you have going on. Without that, it's difficult to help you further.

 

Trying to attach a short video.  You can hear the change in speed when the float switch trips.  I'm planning on making a fresh configuration (without trying to put a z-max limit.  Wondering if commenting it out afterward didn't actually cause problems.