I am an electrical engineer by training and design electronics for manufacturing every day. I have this experiment kit and god I have the experiment. I read the instructions, downloaded the firmware zip file - compiled and tested. The Arduino spoke great to GRBL. I connected the shield, a motor and a motor as the instructions say. When I started sending the G-code, the motor ran fine. I switched off the power and tested each motor with the same driver. I started draining where the motor wouldn't stop and the ammeter on my PSU was going crazy - and I was being conservative as the PSU was keeping it at 11.5V so I checked the heatsink on the driver and it was getting very hot so I tried adjusting the trim for VREF and no improvement. I turned off the power, plugged in another driver and similar behavior - everything started fine but started to heat up and misbehave as expected. Didn't have time to play around with it. Came back to this tonight about two weeks later and started on another motor and motor driver. This time the driver exploded before I even sent the G-code - a brief trail of flame and some gray smoke. Turn everything off and the Arduino seems to be behaving strangely. Open the GRBL firmware project in Arduino and the Arduino doesn't accept it. Grab another UNO from my drawer and it loads with no problem, so I know it's not a settings issue - it blew up. Reconnect the candle to the old one and check if at boot the prints in the console differ from those of the other Arduino - that's why it doesn't accept flashing and the flash is corrupted. Try the shield with my other Arduino and the new motor driver. The motors don't turn. Try all three engines. Nothing. Pull out another CNC I own and plug in motors - they all work. So the shield blew, the Arduino blew, and at least two of the motor drivers blew - the question is if they ever worked. I followed directions to T to check and he sent me a smoke signal that literally said "We're out of business".
BIGTREETECH TFT35 V3.0.1 Graphic Smart Display Controller Board For 3D Printer Ramps 1.4 RepRap 3D Printer Can Select Two Work Modes
13 Review
BIGTREETECH SKR 3 EZ Control Board 32Bit New Upgrade Silent Board Support EZ2209/ EZ5160/ EZ2130 Stepper Driver Compatible TFT Series Touch Screen, DIY For Most FDM 3D Printer (With 5PCS EZ2209)
7 Review
BIGTREETECH SKR Mini E3 V3.0 Control Board + TFT35 E3 V3.0.1 Graphic Smart Display Panel Board New Upgrade 3D Printer Parts For Ender 3, Ender3 Pro, Ender 3 V2
13 Review
Befenybay 2020 Upgrade: X-Axis Synchronous Belt Tensioner For Creality Ender-3/Ender3 Pro/Ender3 V2/CR-10/CR-10 V2/CR-10 V3/CR-20 Pro –Straighten And Stretch For Enhanced Performance
50 Review
Flashforge Adventurer 3D Printer with Detachable Precision Leveling System
6 Review
High-Precision And Stable Creality Ender 3 V2 3D Printer With New UI, Silent Mainboard, Effortless Filament Feed-In, XY-Axis Tensioner, Resume Printing, And Large Build Volume Of 220×220×250Mm
11 Review
UV Curing Standard Photopolymer Printer by IFUN
5 Review
Economic Ender 3D Printer DIY Kit With Resume Printing Function, Large Printable Area Of 220X220X250MM By Creality 3D
18 Review