Centroid Community CNC Support Forum

If you hit the sensors, soft limits are not set ok, or you are loosing steps...

.. I had this only with setting rapids (and frequencies ) to fast for the driver and wiring 5V to Headers with resistors

Uwe

Thanks Tom. How do I go about setting the soft limits?

Here is a screen shot of the current software travel limits. Can you please let me know specifically what I should change?

I just checked the Centroid installation manual (Section 7.15). Unless I am missing something, it appears that the software travel limits will help stop the machine from colliding with a limit switch. It does not prevent the machine from hitting a homing switch.

In my scenario, the machine is over-running the homing switch when a tool change is requested. The homing switch is located at the top of the Z-column.

Thanks... Richard

You have the soft limits set 0.1" past the limit switch. Do you actually have this extra travel before the switch is damaged?

Hello Tom,

I do have extra space before the stop, but I do not think this is the issue.

When I started this post, I thought the problem was due to cutter comp. I now believe something is wrong with the homing switches affecting my machine coordinates. This is a problem I previously posted; thought was resolved... but now I see it has not.

I read the manual section 7.5 and found that the software travel limits only protect the limit switches. I only have homing switches, not limit switches.

To help clarify my question, I just reposted under "Centroid Acorn CNC Controller" a new post "Homing & Limit Switch Unsolved Mystery"

Thanks.... Richard

That is the issue. The one side of the soft limit needs to be zero. I replied to the other thread, make those .01" to 0 and you will not go past the switches.

RJS100 wrote: ↑Sat Nov 19, 2022 4:17 pm Here is a screen shot of the current software travel limits. Can you please let me know specifically what I should change?

Read what it says right in this picture, positive or negative, not both.

Thanks.. I will give it a try.