Re: Swapping between step sizes in real time?
Hope you realize the ramps 1.4 is not a drop on and go module for a due. There are 5v vs 3,3v issues and pin conflicts.. see [forums.reprap.org] Also ramps-fd has its own issues (see [forums.reprap.org])
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Steppers not moving, tried everything ! Ramps 1.4 :S
Hi, thank you for viewing my post. I am trying to build a laser cutter myself, and bought a Ramps 1.4 Kit and 3 stepper motors [59Ncm(83.6oz.in), Rated Current: 2A, , Voltage 2.8V]. I'm powering the...
View ArticleRe: Steppers not moving, tried everything ! Ramps 1.4 :S
I only see one stepper driver plugged in. I guess that's because you're just testing with one motor to start with? How do you know that your motor is connected correctly to the RAMPS? When it's...
View ArticleRe: Steppers not moving, tried everything ! Ramps 1.4 :S
Hi, Yes, there is only one motor in because I wanted to test them each separately, but I tried 3 at once as well. The wiring from the steppers I took is from ramps 1.4 wiring diagram, being with the...
View ArticleRe: Steppers not moving, tried everything ! Ramps 1.4 :S
Quotedanieljack I remember I tried moving the motor by hand slowly while it's powered on, and I believe I was able to move it. I didn't measured the voltage on the motors, just the ohms. When powered...
View ArticleRe: Steppers not moving, tried everything ! Ramps 1.4 :S
what stepper driver do you have there ? it looks like a DRV 8825 (just the purple pcb) If it is a DRV 8825, it looks to be in backwards.. should look like ramps with drv8825 If its not (as your...
View ArticleRe: Steppers not moving, tried everything ! Ramps 1.4 :S
Quotefrankvdh When powered on, it should be very difficult to turn a stepper motor. When I suggested checking voltage, I meant the outputs from the stepper driver. When powered on and not moving, you...
View ArticleRe: Steppers not moving, tried everything ! Ramps 1.4 :S
Driver is upside down if its a DRV and it looks like that the driver is not pluged in correctly. On the picture I can see a pin in the air.
View ArticleRe: Steppers not moving, tried everything ! Ramps 1.4 :S
QuoteDust what stepper driver do you have there ? it looks like a DRV 8825 (just the purple pcb) If it is a DRV 8825, it looks to be in backwards.. should look like ramps with drv8825 If its not (as...
View ArticleRe: Steppers not moving, tried everything ! Ramps 1.4 :S
QuoteWurstnase QuoteDust Ok, so I changed my drivers, they were in the wrong position. Wired 1 stepper motor and ran the RAMPS test code and the motor start moving with some noise and small...
View ArticleRe: Steppers not moving, tried everything ! Ramps 1.4 :S
DRV8825 driver modules often use 0.05 ohm sense resistors instead of 0.1 ohm. So try turning the pots down to 0.8V.
View ArticleRe: Steppers not moving, tried everything ! Ramps 1.4 :S
Quotedc42 DRV8825 driver modules often use 0.05 ohm sense resistors instead of 0.1 ohm. So try turning the pots down to 0.8V. I changed the voltage only for 1 driver to 0.6V, the rest I can;t seem to...
View ArticleRe: Steppers not moving, tried everything ! Ramps 1.4 :S
You need to turn the pot just 180° or less once.
View ArticleRe: Steppers not moving, tried everything ! Ramps 1.4 :S
QuoteWurstnase You need to turn the pot just 180° or less once. I tried even 1/4 or 1/10 of a full rotation , the value just doesn't change below 1.6 :/
View ArticleSuper high current drivers for multiple steppers?
Hey there, I'm building a large-ish CoreXY and wanted to control the Z axis with three NEMA 17's. Two on the front corners and one on the rear. I guess they could be operated separately for bed...
View ArticleRe: Super high current drivers for multiple steppers?
Get yourself some modern electronics instead of RAMPS, run it from 24V, and connect the three Z motors in series. Then you won't need a high current driver. The reason people connect two Z stepper...
View ArticleRe: Super high current drivers for multiple steppers?
Consider using a single motor driving all three screws with a belt so that all screws always stay in sync. It makes it much faster and easier to work on the machine because when you want to raise or...
View ArticleStepper driver help
I recently purchased a power z table for my laser engraver. It comes with the stepper motor but no driver or anything to operate the motor. I am looking for the least expensive functional way to be...
View ArticleRe: Stepper driver help
Read the part number off the stepper motor and search for its data on the web, in particular its rated current, resistance and inductance per phase. Post the values here, then we will be able to...
View ArticleRe: Stepper driver help
Here is the information that I was able to gather. I hope this is sufficient. I took the motor off and looked over the entire thing and there was no part numbers. I had to go to the website to find...
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