Homing and material loading

[justingro]

Hi guys.

Trying to set up our new rebuilt plasma mill cutter .

I set the homing position at front left same as screen on masso but I would like to load material from this end so is there a way I could set a home potision to rear right after homing and after cut this leaves my whole table open for loading cutting area is X 1500 Y 3100 s large table

Justin

 

[cncnutz]

@justingro

The only way that I know of at this time is to put your homing switches at the rear of the machine where you want the axis to move too. Because you have a plasma it will stop at the homing switch position. You can use "Go To Home All Axis" on the MDI screen to move it back to the home position if you need too. In your Gcode you can add a G28 to the end to send it to the home location.

You got me thinking though and I have just implemented this on my machine and I can see it will be very useful.

1. Set up an input as Jog Y+ and connect a switch to it as per standard Masso wiring. Shown here
   
2. Set up another input as Jog/Rapid mode and connect to the same switch as the Jog Y+ button. Just connected the 2 inputs together.
   

To move my Y axis to the back of the machine I can press and hold the button until it reaches the end of the axis or the desired position. The Y axis will automatically stop when it reaches the Soft limit. I usually don't care where the X axis is so long as the gantry is at the back out of the way.

Hope this helps

Cheers Peter

 

[breezy]

Peter,

You got me thinking though and I have just implemented this on my machine and I can see it will be very useful.

1. Set up an input as Jog Y+ and connect a switch to it as per standard Masso wiring. Shown here
   
2. Set up another input as Jog/Rapid mode and connect to the same switch as the Jog Y+ button. Just connected the 2 inputs together.
   

Brilliant idea, as I wired up spare switches on the Bicton Men's Shed router, I will implient when I attend the shed again. It will beat entering Y900 in MDI to move the head out of the way.

Maybe this should be documented as I'm sure that others will use it.

Regards,

Arie.

 

[justingro]

Hi guys.

Thanks Peter .

Switch idea is good . I would like it to go there Evey time so I will move my limits to the rear ,as long as there is no problems with doing this with offset etc . I am completely new to CNC I have no idea what I am doing , learning as I go . I have to learn again with how to modifying g code like adding a G28 to end of code ???????????l???? I am using fusion 360 so post processor is one that I got from some one on this forum as there is not a dedicated one for masso and fusion 360 and plasma cutting yet

Cheers Justin

 

[cncnutz]

Hi Justin,

If your not sure about offsets watch my video on Masso coordinate systems. Hopefully it will explain them.

I think Fusion 360 puts a G28 at the end of the Gcode anyway. There is an Autodesk Post processor under development at present.

Cheers Peter

 

[justingro]

Thanks Peter.

I have been through all your video s about 10 times great information my pause button must be worn out Evey time I stop try something and go again learning a lot from everyone on this site but I am a bit overwhelmed by every thing the way fusion puts its G 54 code and way masso uses it just trying to get my head round everything tried to draw a simply square with a circle cut out and found my soft limit alarms come on even when my square was 500 X500 on a table of 1500x 3200 so properly had my G54 point in the wrong place so much to learn I'll get there

Justin

 

[cncnutz]

Hi Justin

The reason your soft limit comes on is you have not set them up.

It is important to do things in the correct order. Certain things rely on other things and doing them out of sequence causes nothing but trouble.

1. Set up homing
   
2. Set up soft limits
   
3. PLAY
   

Cheers Peter

 

[breezy]

@justingro,

I am a bit overwhelmed by every thing the way fusion puts its G 54 code and way masso uses it just trying to get my head round everything

In Fusion you can set G54 through to G59 on the last tab of the job setup screen.

The default WCS is G54 and in Fusion that is 0 or 1, so if you want any other G5x, you set a value of 2 to 6 in the Post Processor tab in Setup screen.

Regards,

Arie.