CNC Torch Table Z Height Control: Difference between revisions

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The firmware consist only of a few lines of Arduino-code, which makes it easy to extend and modify.
The firmware consist only of a few lines of Arduino-code, which makes it easy to extend and modify.
== BOM ==




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Os_manthc_ramps2mega.png | Mapping of the Ramps-Pins onto the Arduino-Mega ports
Os_manthc_ramps2mega.png | Mapping of the Ramps-Pins onto the Arduino-Mega ports
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== Firmware ==





Revision as of 00:42, 24 June 2017

Os manthc zaxis.png

Manual adjustable version of CNC Torch Table Height Controller

This is a simple POC-version that allows a manual adjustment of the Z height by turning a jog wheel. The wheel can be 3d-printed [1] and is connected to a rotary encoder of type KY-040.


- demonstration video on youtube: [2]


Design Rationale

With this rig it should be possible to manually operate the torch table height by following its slowly moving and regulate the height personally. This can be useful even if in the full version there is a capacitive sensor is doing automatically that task, but one may use it then for setting the starting height or use it in other applications where a frequent manual control is an appreciated option.

The rotary encoder gives up to 20 pulses per revolution to an Arduino-Mega, which translates it into a number of motor steps and triggers these by a TB6600-based stepper-driver. A RAMPS 1.4 may act as a connection layer on top of the Arduino, but can also be omitted. We will show here which pins to wire on the Arduino and on the Ramps as well.

The firmware consist only of a few lines of Arduino-code, which makes it easy to extend and modify.


BOM

Wiring


Firmware