Y Axis will not move. 80 w CO2 laser red/Black Ruida controler

moved the gantry back and forth away from the homing position but it still show as x when moved across, not y

Is there a light on the sensor when it’s actuated? If so, find out what’s triggering the X sensor when moving the gantry back. It’s likely running into something, perhaps the back of the machine.

Can you physically see what’s preventing Y sensor from being actuated? How far away is the gantry from the Y sensor when pushed all the way back?

the gantry touched the y sensor when moved back to the top rh corner as it has moved the sensor on an angle and i had to straighten it up

i pushed the gantry or rail to the top back of the machine, then moved it over to the RH side to see if i could make any difference. nothing

Try this please. For each position I list below, indicate the status of both the XLImit- and YLimit- in the Diagnostics screen:

  1. Laser head at extreme lower left of machine
  2. extreme lower right of machine
  3. center of machine
  4. extreme upper left of machine
  5. extreme upper right of machine

just checked again and the x limit is on the gantry rail so when i move the rail back or forth left or right the x shows on the ruida as x
The y axis is the homing position at the top rh corner and that is showing up as x when it hits homing

Do your sensors have lights when actuated? If so, do you actually see the light on for the Y sensor when you push the gantry all the way back? Or is the light on for X sensor?

Note that Y-sensor should not depend on back right home position to actuate. It should actuate when the gantry is all the way back but the head anywhere along the gantry.

The XLimit- should only actuate with the laser head at the right side of the gantry. Are you saying that it’s on at other times?

Tried everything you asked for nothing is showing up in diagnostic except for machine at top and bottom rh side, checked sensors again and they are showing up in diagnostics as y on top and x below

the diagnostic screen shows nothing for centre or left top or left bottom

What do you mean by Y on top and X below?

y sensor is top rh homing position and x is on the gantry

To confirm, I take this to mean that the sensor is located at top-right corner of machine. But confirm that it’s positioned in such a way that it’s meant to be actuated anytime the gantry is at the top of the machine. Lateral movement of laser head should not factor in. Please explicitly confirm this.

If that’s the case, please try this:

  1. Tape something to the right side of the gantry that you know can manually actuate the sensor such that it will directly come into contact with the switch when the gantry is moved back. I want to eliminate other factors.
  2. With the extra piece taped in place, manually move the laser head approach top-right and confirm that both X and Y sensors get actuated.

What are results?

not sure if i understand what you want but i taped the screwdriver to the gantry and the y axis lights up when touched

This proves out that the failure of Y sensor actuation is due to either sensor placement or something physicaly impeding the gantry from reaching the sensor.

Try to sort out what that is.

when the gantry is moved back and forth to right the sensor lights up in the x box on ruida,
it doesn’t light up in the homing position as Y… don’t know what to do. I am not an expert

maybe it has something to do with the gantry move position when i fixed the angle!!!

Is it possible that it’s still out of square? And that the left side of the gantry is reaching the back of the machine before the right side of the machine?

In any case, very slowly move the gantry backward until it stops moving? What’s the first point of contact? Then check if something is wrong with the location of that contat point.

Separately from that, absolutely make sure that the location of the Y sensor is actually correct.

In terms of fixes there are your options in order of preference:

  1. Fix the mechanical reason why your machine isn’t actuating the sensor
  2. Relocate the sensor. Assuming that the sensor is currently located where it’s supposed to be, relocating the sensor closer to the front would likely allow for actuation but basically is a workaround that’s changing the planned geometry of your laser
  3. Permanently affix something to the gantry that could actuate the sensor. This is a bit of a hack but could get you going.

Hi Berainlb I am lost for words, moved the y sensor lower it made no difference, tried homing once again and it crashed against the back wall… dont know what to do anymore its very frustrating, wife is complaining now… OMG

Physically examine the gantry. What part of it is supposed to come into proximity of the Y sensor? How close is it getting? What’s preventing good proximity?

Undo the sensor placement and directly touch the sensor against the gantry to confirm that it can indeed actuate the sensor. While making sure that you continuously have active actuation, position the sensor where you can secure it. Again, make sure you continue to have actuation. Then firmly secure the sensor.

removed the Y sensor and touched the sensor to the gantry, nothing showing in diagnostics. and tried touching many areas still nothing.
moved the gantry across to rh side and touched the sensor and it lights up on diagnostic.
checked the sensors again in diagnostic and the y sensor lights up in the y sensor box, and the x sensor lights up in its box,
so we know the gantry sensor is working,
but the y sensor even when removed and placed near the gantry is showing nothing, how hard can this be…