I made up a spindle mount, and tried a few cuts… first circle sure doesn’t look like a circle… think I have some settings wrong, going to recheck motor connections again too, maybe something is slipping on one of the couplers. Right now using a old computer with Mach3, a Wantai BOB, and DQ542MA Drivers on 425 Nema 32s for each Axis. (Just found my possible problem… All three drivers are set at 1600 Microsteps, and I told Mach 1800… changing that setting tomorrow… probably explains why I was having a hell of a time getting them to work properly with LinuxCNC’s stepconfig tester
Curious if I can hookup my Arduino mega with ESP8266 to the BOB and run the CNC with GRBL? I like the idea of wireless, don’t need to haul the computer in and out of the house
Nice build @Robert_Hogstedt
Make a rectangle with two diagonals and engrave it on your board. Once you get right dimensions of the engraved drawing and both diagonals are equal length, your machine will be aligned perfectly. Make sure steps/6mm setting in the software and on the controller is right.
I’m running my machine on TinyG and chilipeppr/tinyg workspace but my other one is Arduino with DM542A controlled with chilipeppr/grbl workspace.
Can i see how you wired up your drivers? i have the same type of driver for one of my motors. i’ve been trying to setup Mach4, but i can’t get my Motion Controller or BOB to send signals to my steppers.
All of my +5V is running to my VDD on my BOB (powered from old ATX power supply) All my -pulse, -direction connection are going to my BOB (Pins P2 - P6)
Pic of BOB - P2 to P6 are my Pul and -Dir out of my drivers, Pul+(+5V) / Dir+(+5V) / Enbl+(+5V) are hooked up to my VDD on my BOB, Enbl(ENB) is not hooked to anything. +5V and GND are hooked up to the old computer ATX +5V / GND respectively
I’ve been trying to hook up my spindle relay, I can get it to work with a NPN transistor, couple of resistors and a diode (Using Pin 17 on BOB for signal (2.2V -Not enough to kick in relay) to drive a +5V connection from ATX power supply to relay to enable my router… it works as long as you don’t enable the power to the control box until after Mach is on, or else the spindle will come on as soon as you switch power onto the control box
@Robert_Hogstedt oh sorry, I was away from the net for a while. Those are great! Thanks. Wonder if the wiring would be different from a ST-V2? Do you host a 3D website? The name sounds familiar.
I think it would be similar for a V2… I looked at one, and you have a relay built in for a spindle… should work the same for you. I don’t host any websites… There are some Hogstedts in the States, but I’m pretty sure they are all distant cousins, I’m in Canada, and not too many Hogstedts up here.
Right now I just want a motor to move. I’ve got a smooth stepper running to the ST-V2, which is sending signals to my drivers. I was getting the DROs to move initially, but no motor movement. The initial driver I’m trying to move is that DM542t. I have it connected to a. NEMA 34. It’s powered with a 48V PSU. BUT I only have the PSU running at 38V.
And, you have your enclosure grounded! I wish I had you here when I started mine. I had my electronics mounted to a piece of sheet metal. Causing ground loops and almost destroying my electronics. I’ve already blown 2 TinyGs the past year. I don’t want to blow my ESS (smooth stepper).
I’ll try to find the original Wantai sheets I used, they worked for me. I’ll post if I can find them