Hello all.
Just realised I never updated this thread about my wireless tablet controller.
So, a little tweaking to go, but essentially there.
The receiver is mounted under the CNC with the relays. This talks to the Rambo controller on it’s own serial port, so you can still use Repetier on the USB socket and the LCD screen all at the same time.
Upon CNC boot (Rambo boot), it retrieves the current data and also will home X, Y and Z if you wish (a handy function I find).
The wireless handset is very light, and I might even shrink it down further.
Has a 4000mAh Lipo inside. Runs for most of the day without issue.
A tilt switch inside shuts the screen off after 2 minutes if it hasn’t moved. Comes on upon movement.
4x Buttons on the left control the LED bed lighting, tool power (both laser and router), extractor and I have put the facility for a later date lubrication pump.
Displays X, Y and Z - taken from the Rambo. It tracks it’s own position commands (if you send X+100, then it updates it’s own screen first). But every 60 seconds, it does a compare with the Rambo to ensure they both match.
RPM is not quite finished. I have made a digital to analogue converter and its all working, but I need to install the optical disc on the router to deduce the IR pulse.
There is a page for direct typed commands. You press the >_ button and it steps through F, G and M.
Then simply enter your bespoke command and press GO.
There is a G code preset page. This allows you to quickly jog the machine in multiples of 0.01, 0.1, 1, 10 and 100.
You can also home All, just X and Y, Just Z, raise Z for tool change and reset the X,Y and Z position (zero them).
Also lock/unlock the steppers.
The setup page has the same home functions and set zero.
Plus you can calibrate the bed, turn the piezo on/off (in the handset), turn the endstop microswitches on and off, request the status of the endstops and quiz the Marlin controller for data (Marlin Debug).
I also added a fast tap move function. This allows you to touch the screen (which has a scaled box the size of the bed) and it plots a cross where you touched.
Hit GO and it will zoom over there at high speed.
Voltages are also shown on the setup page. The adjustment pots are the fine tuning for how much the voltage has to drift, before it updates the handset (you don’t want it polling the handset constantly with updates on every 0.01v fluctuation).
I have it set at 0.5v.
Oh, and every page has an emergency stop button.
Can’t lie… it’s been a right pain to get working.
Will get a video done asap.
