Messages

1

General Mach Discussion / Re: How to use Z soft limit with the Tool Length offset?

« on: February 23, 2017, 08:31:27 PM »

Agree, we need to be careful, and you can crash stuff for a lot of reason.

I just find it strange that this feature do not exist. Just allowing to add the tool offet to be optionnally added to the low-Z soft limit would have nearly completely eliminated one potential source of crash.

2

General Mach Discussion / Re: Configuration for Sherline Mill Metric

« on: February 23, 2017, 02:00:14 PM »

i have a working one for the UC100 who came from my cnc vendor.
I am still setting up the detail but the servo movement are fine.
I will send it to you tonight by private message.

3

General Mach Discussion / Re: How to use Z soft limit with the Tool Length offset?

« on: February 23, 2017, 02:57:58 AM »

thank for taking the time to answer.

great,  you just confirmed that I properly setuped my soft limit. thank.

this method work fine to me for everything with the big exception of the low z axis limit.

maybe I miss something but , in your example, a 10 cm end mill will crash with the table 9.7cm before hitting the softlimit (I suppose the limit switch at table level). so, I need to update the z low limit after each tool change or accept the fact that I get no low-z side protection.

I am right?

4

General Mach Discussion / How to use Z soft limit with the Tool Length offset?

« on: February 23, 2017, 01:57:48 AM »

Hi Mach3gicians,

   Mach3 Newbie here, i am doing my initial mill setup and i cannot figure what is the correct way to setup the Z soft limit (other axis are easy).


I want to use the Z soft limit to avoid my end mill to crash with the  table. My tools have a big range of length.

The Z soft limit is in machine coordinate, but for a reason i don't understand (explanation welcome) the soft limit in Z do not add the "tool length offset" before evaluating the trigger condition.
As a result, Z soft limit need to be manually updated after each tool change. Otherwise


if my current tool is shorter that my "reference tool" the soft limit will trigger with the endmill very far from the table.
if my current tool if longer, the soft limit will do nothing and i will get a big hole in my table.

In all case, it really feel awkward...

Do anybody know a way to add some "tool length" awareness to the soft limit?
Thank a lot in advance
Sylphio

5

General Mach Discussion / Re: Configuration for Sherline Mill Metric

« on: February 23, 2017, 01:19:01 AM »

Effectively, this config do not work at all. did you find one?