Hello Everyone, I am building the Mini Mill (thank you MarkC) but I was thinking of making some changes (trampling on someone else's better engineering choices no doubt!) as the original build requirement was to keep cost low and I believe I can stretch this requirement a little for my own build. The first use of my MiniMill will be on thin brass (1mm thick) to see if I can mark out the hour markings for a watch face but I also hope to be able to mill aluminium too (manufacturing speed isn't a requirement as this is for Hobby use only) up to and including 1cm cut through depth (can be many shallow cuts). Using the original Stepper motor specs as a guide ( 175 oz*in while physically weighing around 1kg ) I thought I would see what alternative Stepper motor types exist and found the following: 3 Phase 1.2 Step : Leadshine 573S15 : Leadshine 3 phase Stepper Motor 573S15 for NEMA23 5A Length 76mm Shaft 8mm Running @ 48v using 3DM580S. (Or if I waiver the weight concern: P Series Nema 23 1.2deg 3-phase Stepper Motor 5.5A 1.8Nm(254.95oz.in)) 2 Phase 0.9 Step : Nema 23 Bipolar 0.9deg 1.26Nm (178.4oz.in) 2.8A 2.5V 57x57x56mm 4 Wires Running @ 48v using DM542Y : Y Series Digital Stepper Driver 1.0-4.2A DC20V-50V for Nema 17, 23, 24 Stepper Motor Tons of 2 Phase 1.8 Steppers like the original OpenBuilds ones so will skip listing anything against this one. I've been trying to avoid the very heavy NEMA 23 motors as I imagine this would cause imbalance on such a small mill and was wondering if people ever balance out the other side with a similar weight? (but I am going off topic). So my question is, should i follow the norm and go with the 2 phase 1.8, dip my toes into 3 phase or turn to 0.9 steps? I will microstep regardless. The final question is on stepper motor manufacturing quality, anyone have a preference between Cloudray and StepperOnline? I am mainly looking at StepperOnline but only because they seem to be mentioned more often. I will be interested to see your responses. Thank you for your time.