Re: Stepper driver question:S
Which is "the" controller, or do you mean a generic controller? The stepper driver itself can take VMOT from anywhere. When plugged into a controller board, VMOT is usually tied to heaters or other...
View ArticleRe: Cheapest Solution For Controlling My Steppers?
bryanandaimee thanks for the input this sanguish board is it pre assembled or would i have to assemble it? and what firmware does it run would i be able to use teacup and plug and play? with...
View ArticleRe: Stepper driver question:S
I'm using an Azteeg X3 right now running on 24V but I'd like to use 36V for the stepper drivers. Also, when all 3 axis move at the same time they seem to be bogged down. Thanks for your reply.
View ArticleRe: Stepper driver question:S
If you have a single power supply with multiple voltages yes. Otherwise to use different power supplies, i dont think so, and i wouldnt try it if i were you. Different power supplies can have...
View ArticleRe: Stepper driver question:S
Would it only be a problem if logic ground and motor ground are connected in the driver? Guess I'd have to find that out huh?
View ArticleRe: Stepper driver question:S
Be careful. First, take a multimeter and measure the voltage between the grounds. For example, you put step to 5v from one psu, and driver will have it referenced to the other psu ground. So measure...
View ArticleRe: New Smoothie Board
I'm interested as well. This looks like a perfect candidate for a moving light project.
View ArticleRe: Cheapest Solution For Controlling My Steppers?
Yes, it is assembled, and teacup is a good firmware for these drivers, as well as Repetier.
View ArticleRe: Stepper driver question:S
I've actually tried something like this for the heated bed http://forums.reprap.org/msg-191972. It worked but it was a hack and it made some LEDs stay on when they're not supposed to. I've since...
View ArticleRe: Stepper driver question:S
Perhaps a better way to do this is with optocouplers. Some stepper drivers have optocouplers by default for the control signals. With such a device then yes you can use different psu because the...
View ArticleRe: repstrap electronics
Update: I ditched the Arduino shift register idea. I just couldn't seem to get anything to happen. So I picked up a parallel port pci card off Amazon, put it in my desktop and installed LinuxCNC. It...
View ArticleRe: Melzi 5V supply drain current?
I just use a powered usb hub to power my pi on my reprappro mendel. Ben
View ArticleRe: Step pulse polarity settings w/ common firmware?
ShadowRam Wrote: ------------------------------------------------------- > Marlin Firmware. > > Configuration_adv.h > > //By default pololu step drivers require an active > high...
View ArticleRe: Power Supply Survey
1. Type of PSU: PC-PSU Raidmax RX630Z ATX power supply, 630W 2. Specified overall PSU power: 630 watts 3. Specified current on the 12V rail: 22.0 ampéres 4. Approximate current of the heated bed: 12...
View ArticleSD 8825 in parallel
Hi, Im using two big motors (2,5A each) on my X-Axis. So, is it possible to connect two Stepperdrivers in parallel? I already soldered it but Im to afraid to test it since I only got one spare Driver...
View ArticleHelp My Melzi board stopped communication.
Hi i just got my reprap from reprappro and i built it.I printed a few thing and they came out fine but then when i plugged by laptop into it this morning there was to red light and i couldn't connect...
View ArticleRe: SD 8825 in parallel
All the theory that I know says that linking two or more chopper type drivers to drive one motor will not work, so I am not inclined to even try it, although there is a school of thought that says "we...
View ArticleRe: SD 8825 in parallel
I assume he's trying to drive 2 motors from one set of step/dir/en signals, so the motor outputs would go to separate motors. In which case it AFAICS ought to be fine, you're just splitting the logic...
View ArticleRe: Power Supply Survey
1. Type of PSU: Meanwell SP-320-24 2. Specified overall PSU power: 320 watts 3. Specified current on the 12V 24V rail: 13.6 ampéres 4. Approximate current of the heated bed: 9.6A ampéres (Note: PCB...
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