Set the home pos.

Have had the whole thing on again. Wireing is correct the keabord is jogging and all the endswitsches are working and the joint are connectet to right axis.

?????? i am pussled

Henrik

Yes i have tested them.

I must admit that I am puzzled by that error, I have never seen that and there seems to be very little information about it. I have the feeling that something basic is wrong with this setup.

[edit]

maybe tell us a bit more about this machine. What kind of motor drivers? What kind of motors? How do the motors drive the axis (Belts or gears)? I notice you have the scale set to 80 in your INI:Is this correct? Does the machine move the correct distance compared to the DRO when jogging?

First
Tommylight. I dont know what Axis GUI means.

I have yesterday moved the Axis and compaired with the hardstops and they macth.
When i first had the machine running and trayd to home the Z axis was moving since then i have installed the hardstops ( microswitches ) and added the lines Aciera suggested.

Aciera
The cnc mashin is a 6040cnc from china. There is no data on it, there is no name on the motors and no they are not moving the right distance. I have bought a mesure clock so i could messure the movement and use it under calibration.

It is not with belts but spindles (Whats DRO)
When it is moving in homing its moving very slowly.

The machine arrived as a USB device but the Mach 3 CD was curupted so we dicided that changing to linuxcnc was the best choise.
So we changed the CPU so it had a parralel output, and we ordered at parralel breakbord from china for the controller.

Comments on the failure it came up trying to stop the Y axis when it was homing by touching the Y axis microswitch.

I dont know what Axis GUI means.

Axis GUI (graphical user interface) is the screen graphics:

Whats DRO

DRO is the "Digital ReadOut" is what displays the coordinates on the GUI:




A useful tool is "halshow". You find it in the menu "Machine" and then "Show HAL Configuration". It opens as a separate window:
When you click on the "Watch" tab you can watch the inputs and outputs in real time (dark red = off , yellow = on). You can choose the pins in the left section of the window. For example: to find "parport.0.pin-13-in" you click on "Pins" then "parport" then"0" then "Pin-13-in". You can then press your microswitches and check if they are working properly. Just try it out a bit.

they are not moving the right distance

Ok, so let's first get the motors set up properly. There is a calibration tool. You can find it in the menu "Machine" and then "Calibration" but you can also change it directly in the ini: In the [Joint_ ] section of each axis there is a line "SCALE= 80" which tells LinuxCNC to put out 80pulses to move the axis 1mm. So this value "80" has to be adjusted so that if you see a change of , for example, 10mm the machine actually also moves 10mm in the positive direction. If the machine moves in the wrong direction you need to change the value to negative. (Say from "80" to "-80").

The actual value will depend on your motors (number of steps per revolution), motordrivers (microstepping) and your lead screw pitch (mm of travel per revolution). So say your motors have 200 steps/rev, drives are set to 8 microsteps and the lead screws have 5mm/rev:
200 x 8 / 5 = 320 -> SCALE=320.

So give that a try and report back.

[edit]
Maybe you want to disable homing so you can use the "MDI" tab without having to home the machine first. In MDI you can write commands like G91 G01 X50 F100 and press enter to get the machine to move and then measure the actual travel of the machine.
To do that add this to your INI file in the [TRAJ] section:

Thank you.

We are going to dinner with some friends soon, but first thing in the morning and i will be working with it .

You are really heiplfull both of you.

This is the report from today.

Parport.0 pin-13-in-not ==>both-home-X

Changed scale on X on Y to 320 and the result was Y100 gav very close to 100 mm

I guesed that F was speed so i tested F200 which was much faster movements.

I tryed the Hal show but without any luck , but i could se in the DRO that pressing the microswitches gave like a small cros.

When i am Keybord to move the axis it going the right way but using the MDI commands the are moving wrong.
Can i change that in the HAL or ini file.
I get a lot of lines in the DRO can i cut it down to only X,Y and Z.
Do i change the Z scale to 320 aswell
How do i move the softlimits. As it is now i can only move on a small part of the area.

Have nice weekend Henrik

Do i change the Z scale to 320 aswell

I have no idea of the microstepping settings on your drives or the leadscrew pitch of your machine.
The number 320 I used in the example might not be correct but if it fits then fine.

If you axis are moving the wrong direction then you need to change SCALE=320 (or whatever number you have) to SCALE=-320 (note the minus in front of the number). Make sure that the DRO counts correctly. ie increasing for positive direction and decreasing for negative direction.

As for the DRO, you should have X Y Z and then also the DTG (Distance to GO), the G53 (active offsets) G92 (absolute coordinatel) and maybe TLO (Tool length offsets). Not quite sure as I use a differnt GUI.

How do i move the softlimits.

I noticed you have the limits for the Z-axis set for 2mm of travel. So for say 100 mm of travel and homing at the top change this:

To this: