Forum Posts

Bill
Nov 01, 2022
In Getting Started
With the introduction of the Mk3 units, we've also introduced a new way to command the 3D Chameleon. You can reprogram your electronics with the new firmware by downloading the new firmware (attached to this thread), installing the Arduino environment and then running the following command from the location of your downloaded (and extracted) firmware. "\Program Files (x86)\Arduino\hardware\tools\avr\bin\avrdude.exe" -v -p m328p -c usbtiny -U flash:w:SelectorFirmwareMk3.hex:i -C "\Program Files (x86)\Arduino\hardware\tools\avr\etc\avrdude.conf" Please note, I am use the Adafruit USBTiny programmer, but you can use anything you choose... you'll need to update this command to reference your own programmer in that case. You can also use any operating system you choose, but be sure to also update the paths in the command to match your OS specific requirements. Bill
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Bill
Mar 05, 2022
In Support
In some of the 3D Chameleons, the motor current might not be high enough (specifically, the older kit units.) If you have one of these units and are experiencing issues with either the selector or the extruder motors skipping, please adjust the motor current to the 1 o'clock position for both of the motor controllers in the 3D Chameleon electronics. The steps are very simple... 1) Unplug the power to the electronics and the printer. 2) Locate the two adjustment POTs on the small stepper driver boards in the electronics. 3) Rotate them to the 1 O'Clock position. By default, they'll be at the 12 O'Clock position. 4) Replace the lid and power it back up. Here's a picture of the POTs of before and after.
Increase Stepper Motor Torque/Current content media
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Bill
Jan 01, 2022
In Support
The 3D Chameleon uses a spring tension cam mechanism using a small 2.5mm x 10mm spring and a 100% solid infill 3D Printed part with a "B" imprinted on it. That part can wear over time, or in the the worst case, can actually break. If that occurs, you can print out a new part using this file. You can print it with 100% infill using either PETG or PLA. Here's the file: https://www.thingiverse.com/thing:5181728
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Bill
Dec 29, 2021
In Support
If you're using a printer with multiple physical extruders, there is an issue with the latest version of PrusaSlicer in that they're no adding a Tool (T{extuder}) command AFTER the tool change gcode is inserted. The issue is that our code is changing it to the selected code in our Tool Change, and they're then overriding it. There doesn't appear to be a way around it in their settings, so I wrote this little post processor that switches all T{extruder} commands back to T0. (If you have the 3D Chameleon on another extruder, simply edit the code to replace the T0 with your specific extruder number.) Attached is the code... simply use the following post processor command to run it: "C:/Program Files/Python38/python.exe" C:\Users\Username\Desktop\T0Only.py Be sure to replace the Username with your correct username, and use the correct location for your installation of Python.
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Bill
Oct 08, 2021
In Support
Hi Folks, On the Ender 3 V2, the normal switch mount has the switch too far towards the back of the printer. Under normal circumstances, that doesn't effect anything, but if you have an automatic bed level sensor added to it, then the two will interfere with each other. I now have my switch at 230mm on the Y axis by making a new custom switch holder for the Ender 3 V2 that extends it further forward to allow for printers with ABL as well. You can find it here: https://www.thingiverse.com/thing:4663605 (Look in the files for the Ender 3 V2 specific one.) Bill
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Bill
Aug 12, 2021
In Getting Started
Please feel free to ask any questions, post your creations or help others out! Bill
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Bill

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