Servomotor disaster
I was forced to reduce the size of the sand table mechanism I've been powering with iHSV servomotors and was running tests after reassembling the mechanism. The machine homed OK, so i selected one of...
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Re: Servomotor disaster
The problem I ran into is apparently well known among those who work with servomotors on a regular basis. There is a pretty cheap and easy solution described in this document from the Gecko Drives...
View ArticleElectronic boards
Most of electronic boards apply potting compounds to protect the board. However, I've found there're several problems by applying potting compounds. The shell of compounds is larger than expected....
View Articlenema17 moves only one step
Hi, can anyone explain why stepper motor in extruder seems to take only one step? (I heated it above cold extrusion limit) After that it rotates freely. There is same problem in two printers but 3rd...
View ArticleRe: nema17 moves only one step
Found solution.. there actually was problem in motor wiring Just cross connected two wires ABAB <--> AABB
View ArticleSteppers move only manual
Hello everyone, I am building my first 3d printer for hobby purpose. I am currently still in the testing phase. As setup I have the following: - power supply 12v 30 amp - Arduino mega - Ramps 1.4 -...
View ArticleRe: Steppers move only manual
... could be, way too fast speeds (F-values in the G-code) or speed settings in the Pronterface-configuration -- try to reduce speed or rise microsteping value ...
View ArticleRe: Steppers move only manual
Thank you VDX for your response. (and apologies for my late response) It was indeed too high a speed of the engines. By really bringing this down quite a bit, it now works properly! Thank you very...
View ArticleCurrent for steppers of Anet A8 Plus
Hi, my Robin Nano v3 just arrived, MKS TMC2209 v2.0 drivers includet. But I don't know what current my stepper motors need. The ons for the x-axis is labeled 'STEP MOTOR 42SHDC3025-24B' and I found...
View ArticleRe: Current for steppers of Anet A8 Plus
... search datasheets of the motors -- They don't need the full rated current ... have some running happily with 40-30% only B)-
View ArticleRe: Current for steppers of Anet A8 Plus
The motor data sheet is 0.9 amps. There is no harm in going lower, if the motor will provide the torque you need.
View ArticleLerdge X and stepper
do not give signs of life stepper motors with this board. I think I just got the links wrong. On scooters the phases are right lateral with left central and left side with right center, then black,...
View ArticleStepper driver selection
Dear forum users, I once again have a question which requires your vast knowledge. For a project that I am currently working on I am using 2 Nema 23 stepper motors which run at 24V, 2Amp peak current...
View ArticleRe: Stepper driver selection
The Duet 3 controller board could drive those motors directly without any additional heatsinking (though you would probably want to have a fan blowing on the board). The Duet ecosystem is under active...
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Re: Servomotor disaster
I prepared a PCB and gathered most of the parts for the returned energy dump. I ran a simple test and it appears to work properly. Details, including a link to the KiCAD PCB design files is here....
View ArticleRe: Servomotor disaster
Bear in mind that the current that can be absorbed by the 33 ohm resistor will be limited. For example, if you use a 24V supply then it's only about 700mA.
View ArticleRe: Servomotor disaster
The diode is normally forward biased which holds the transistor off. When there's a voltage spike at the motor that exceeds the supply voltage (24V in this case), the diode gets reverse biased and...
View ArticleNEMA 34 for DM556T driver
Hi there, I have DM556T drivers (https://www.oyostepper.com/goods-112-Digital-Stepper-Driver-18-56A-20-50VDC-for-Nema-23-24-34-Stepper-Motor.html) and I'd like to get NEMA 34 series motors for them. I...
View ArticleKlipper config Manta 8P servo steppers 3DP1000 printer
I'm about changing old Marlin 1.0.6 in 3DP1000 printer with Manta 8P/Klipper because orginal firmware lacks pause macro and filament sensor logic does not work. Have tried this: [reprap.org] but it...
View ArticleTMC2130 not working in standalone mode
Hi everyone, My problem is that A4988 drivers work fine on my Robin Nano 1.2 Board but 2130 standalone drivers don't. Any idea what the problem is. (Yes jumpers adjusted, firmware 2130 standalone mode...
View ArticleHow do I calculate the theoretical max speed of a motor?
I'd like to know how to estimate the maximum speed of a stepper motor before the torque drop-off. There are several existing calculators of varying degrees of complexity for that: - RepRap calculator...
View ArticleRe: 100:1 Geared nema 17 wont turn
Can you use this one? i find it similar to yours; https://www.oyostepper.it/goods-304-Motore-passo-passo-Nema-17-bipolare-L%3D48mm-44Ncm-0018-gradi-168A-28V-con-riduttore-epicicloidale-100-1.html
View ArticleRe: 100:1 Geared nema 17 wont turn
@maogeken -- you're added to the "eventually SEO-spammers" list - any more similar posts will remove the "eventually" 8-)
View ArticleTMC2209
I have a question? Is there any benefit using a TMC2209 for extruders stepper motors. Please be specific. Thank You
View ArticleRe: TMC2209
Did not phrase it correctly. I was asking it there would be a benefit to use a TMC2209 instead of the A4988.
View ArticleY motor ticks after stopping
Hi all, I think I am missing something simple here, I hope someone can help. I have put together a Bear Prusa clone, kinda. Anyway, I printed some parts and assembled it mostly like a Bear. It is...
View ArticleRe: Y motor ticks after stopping
... could be EMI (Electro-Magnetic-Interference), whats causing wrong impulses on the STEP input ... would be reduced with shielding the cables ...
View ArticleRe: Y motor ticks after stopping
Well I was able to figure it out, kinda. It turned out that the Mega board was the problem. Once I swapped out the arduino clone, it started functioning correctly. Thanks for all the views. Is there a...
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