Parts order from PCB way

Question

Hi, I love the project and hate that it is not available to purchise any longer.

The plan is to order parts from PCBWay or similar and I have 3 questions.

In which material to order printed parts?
Are the files on Github enough for PSBWay to make a complete board?
I read in one of the posts that Arduino shield can be used instead of ordering the board?

I will use the Chameleon on Duet controlled printer and it is a perfect solution for us who are not good with coding.

Thanks a lot.

Bill · Accepted Answer

The firmware only needs the pins changed... there is no code changes necessary other than the Enable, Step, Direction pins as well as the I/O for the button. The code has those pins defined at the top and all you need to do is match the proper pins with the board you choose.

https://www.amazon.com/s?k=cnc+shield&crid=3MVR50G4IYYQ1&sprefix=cnc+shield%2Caps%2C153&ref=nb_sb_noss_1

BIll

Jim Kramer · Answer

Working on this.  Have both a shield v3 and V4.  Have connected the switch and an OLED display to the V4 and uploaded the code.  Switch triggers the display.  Stepper moves using simple code so should work fine also.  Putting the Chameleon together watching the vid by Chris Riely.  Hope to do more on it in the next few days.

Noble Samuel · Answer

Hey @googler25 I put the jumpers on and the Motors are taking better steps. I am not sure if it's enough to move everything but I will get the rest of the parts I need next week and try assembling the 3D Chameleon. I did try the power adapter on the Arduino UNO. It powers up and I can get the LCD to work but when I try the limiter switch nothing happens the motors don't do anything. I connected the power back to the CNC shield with the Arduino connected to my PC with the UBS cable and the motors move with the limiter switch. Need to figure this out now how to get power needed from 1 adapter to both devices.

googler25 · Answer

Hi Noble Samuel, thanks for the pictures. You are writing "no jumpers means full step". But You need 16 microSteps - not full step. Have a look at the firmware code: "const int microSteps = 16;".

Specs of the A4988 driver:

MS1 MS2 MS3 Microstep Resolution

Low Low Low Full step

High Low Low Half step

Low High Low Quarter step

High High Low Eighth step

High High High Sixteenth step <--- that is the correct setting (3 jumpers set)

I deliver 12V/3A to the black, round power input of the Arduino UNO. I do not use the USB-Port for power input and I do not use the blue power screw thing on the CNC Shield at all. Have a try and please report back. Keep on trying :-)

Noble Samuel · Answer

I am using a 12V 1A Adapter to supply power to the CNC Shield.

Here is my Frankenstein. CNC Shield has separate power and I did some more research no jumpers on means full steps which I am not getting. I saw some where about possibly swapping the red and green wires. Tried that same issue. The motors hardly turn.

Sorry about the mess working on this in limited space at the moment.