Hello everyone. I have been looking at 32 bit boards for my hobby printer at home and in my classroom at school. I picked up a couple of the kickstarter Re-Arm for Ramps boards and have a few questions about two other boards. The Cohesion3D Mini can accept a high voltage signal from an inductive sensor without requiring a voltage divider. I have a few of these sensors in my drawer and this would make it easier/tidier to use them. Does the Azteeg X5 mini require a lower voltage signal from the inductive sensor?
Also, Roy Cortes is using Octoprint with his arm board through UART from a RPi3. Is this difficult to set up? Any info or pics are appreciated.
Here’s my latest blower cooling fan mount for my home printer. It’s sooo quiet. Now all I need to do is to get rid of the noisy fan in the power supply somehow. The rubber and steel motor isolators are amazing, too.
Thank, Jim
Hello @raykholo . Comments enabled. The UART communication from a Raspberry will be new for me but I think it is the only way to go as the Re-Arm doesn’t have a usb port…, right? 
You can still hook up to a pi over USB. The serial is just a cool thing that a few people do. Makes the pi + Cohesion3D Mini package a lot more compact and fit into a single box without a USB cable sticking out.
Oh, there’s the usb plug on the Re-Arm. I didn’t look closely enough. I feel kind of dim! Duhh. Thanks for the info. I think I’d like to give the UART a try. Is there much to configure in the Smoothie and Pi3 besides 3 pins?
Hardware wise that’s it. @Eclsnowman has done this, I can dig up some old screenshots he sent me, but there was just one line that had to be put in the octoprint settings to set the COM Port, if I remember correctly.
I ran on UART for a while, but usb was more stable so I went back.
Here are some of my notes when I used UART: https://github.com/eclsnowman/HercuLien/blob/master/Azteeg%20X5%20GT%20Smoothieware/TX%20RX%20Pi%20to%20Azteeg.docx
usb is definitely faster. the uart serial is meant for debugging and logging and is not optimized in any way for streaming gcode.
@Wolfmanjm @Eclsnowman and @raykholo thank you for explaining this. I’ll go usb from the rpi as I’m doing now at home and school.
You’ve seen this one: https://www.kickstarter.com/projects/1245051645/re-arm-for-ramps-simple-32-bit-upgrade
@Awesome_Coder Thank you, I sure have. I thought, although the cost of three is up there, that it would be a rather painless way to flip one or two of my printers over to Smoothieware based system. I’m looking forward to the 3 Re-ARMs arriving! I’ve never had a Ramps fail on my systems for the last 9 years… They’ve all been ramps based and all with cooling fans blasting over them.
@Jim_Christiansen mine arrives in Jan. Currently cutting my teeth with ramps delta printer. Trying to make a bracket to secure my heater wires from moving while printing. I’ve lost the head heaters already.