How to set motion limits in PlanetCNC TNG software

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This tutorial will explain how to set motion limits of your machine under File/Settings/Motion-> “Range”.

First you need to configure step per unit values, limit switch inputs of controller and motor limits:

How to set Steps Per Unit values in PlanetCNC TNG software

How to configure limit switch inputs of controller in PlanetCNC TNG software

How to set motor limits in PlanetCNC TNG software

 

If you use normal XYZ axis machine, then we recommend that you set your motion limits to same values as motor limits.

You are probably wondering what is the difference between motor limits and motion limits?
We try to think that motor limits are limiting actual motor movement while motion limits are limiting  effector (tool) movement.

Eleboration:
With use of combined motors and special mechanics you can achieve movement which doesn’t follow the same kinematic rules as linear motion CNC’s. Examples of such machines are H-bot, Delta or multi-axis machines. In such cases values for motor limits and motion limits would not be the same.

 

To set motion limits of your machine click: File/Settings/Motion-> “Range”

 

Limit- value sets limitation of effector (tool) movement in negative direction, Limit+ value sets limitation of effector (tool) movement in positive direction for specific axis:

 

 

If we want machine to stop when limits are reached we must enable them. To enable motion limits for specified axis enable round button for specified axis: