hi guys i hope it is the right section, i have a problem with y1, when i move all the axes move perfectly and after if i try to move them obviously i struggle, but not for y1, it seems as if it does not receive power yet if i move it forward it goes well as y2 while if i move it back it loses steps, i replaced the cable and i have the same problem, possible that the problem is in the vref of the driver or the broken stepper?
Check the grub screws on the connector between the stepper and the lead screws. Make sure the lead screw on the weak side is well lubed and not binding. Beyond that more information could help troubleshoot the problem:
- Picture of your control board and its wiring
- Listing of your setup, including control board and firmware used
- Video of the failure (including sound).
possible that the problem is in the vref of the driver or the broken stepper?
If you are using DRV8825 or A4988 stepper drivers, this is a possibility and should be checked. It is unlikely for other drivers.
Thanks for your reply Roberto, I check the vref and everything else is let you know, maybe it can be of help to others in the future, yes as a driver I use the drv …
The problem is in the firmware, in the sense that only one y axis is configured, but the worst thing is that I noticed after about a year! 
Someone out there can tell me a working firmware for a skr.1.3, obviously using all 5 drivers separately …
Assuming you have separate wires and drivers connected to each stepper motor, you want a version of the firmware with the “Dual” in the title as well as LR for LowRider. Assuming you are using TMC2209 drivers or DRV8825 drivers, V1 maintains these versions of the firmware:
You can find the links on the firmware page. If you use different stepper drivers, you will need to make some simple modifications to the configure files and recompile the firmware.
2 Likes
Roberto you are really very kind and thank you so much for the help you give, but I have already tried this firmware and it is not good as one of the y motors did not move, at the time I had to modify it to solve, the problem is that it does not moves the same even if from marlin I set the dual stepper y, and I’m not sure the firmware is the problem, I probably have a card failure, anyway I decided to throw myself on grbl because as a cad cam I use Vectric aspire and marlin does not like it, I hope Rian does not get angry about this but estlcam is not the best not to mention repetier host, using aspire I am forced to have a card with grbl, because finding a pp with marlin for a lowrider is impossible, thanks anyway for your help!
Ryan will not care, and neither will anyone on this forum. There are a number of happy GRBL users on this forum, and some of the higher-end cards that people are using only have GRBL as a firmware. The only issue is that there are far fewer GRBL users active on this forum, so there is less potential support if you need questions answered.
Vectric aspire and marlin does not like it…pp with marlin for a lowrider is impossible
You need a Marlin postprocessor. There is nothing special that a post processor needs to do for the Lowrider. Ventric does not ship one (last time it was discussed on the forum), but there are a few third-party Marlin postprocessors for the Vectric products. Do a search for “Vectric aspire marlin post processor,” and you will find them.
probably have a card failure,
Your problem is unlikely to be the card. It could be the wiring, or the stepper driver, or it is remotely possible it is the stepper motor. If you swap your wiring at the control board for Y1 and Y2 and test whether the issue stays the same or moves to the opposite side, you can tell you if there is a wiring issue. Likewise, if you swap the stepper drivers used for Y1 and Y2 and run a test, that can tell you if you have a bad stepper driver. Going with GRBL will not fix your problem if it is a wiring issue, or if you use the same stepper drivers and it is a driver issue.
No intendevo grbl con un altra scheda, questa Skr1.3 mi ha sempre dato problemi, non a caso é stata sostituita dalla skr1.4 turbo, la 1.3 ha il difetto degli endstop anche se non so che farmene sul lowrider, cercherò di approfondire meglio i topic grbl in questo forum, grazie ancora Roberto.
Changing to another board might not solve your problem if 1) the issue is in the wiring, or 2) you use the stepper drivers from your old board, and the issue is the stepper driver.
Questa è l’unica prova che non ho potuto fare, non appena mi arrivano i driver nuovi ti faccio sapere, grazie ancora!
Driver guasto e un piedino della board rotto, problema risolto
1 Like
I’m glad you got it solved.
Nel frattempo ho anche acquistato una scheda a 32 bit dove si può mettere grbl mega 1f,se può essere faccio una recensione sulla categoria grbl, chiedo perché non so se è consentito da v1
Please share what you find. We are always looking for new options.
Perfetto Jeff, non appena ho la scheda fra le mani faccio una recensione completa
Jeff già che ci siamo, aggiornate la pagina del firmware per low rider con la skr1…3, li ho provati tutti e l’unico funzionante é l’ultimo di tutti in fondo alla pagina V1cnc_Skr1p3_Dual_8825, probabilmente la configurazione è uguale anche per le skr1.4 forse potrebbe essere utile a qualcuno senza impazzire troppo… 
I’m using google translator, so maybe something is getting lost.
I don’t see the problem with the firmware page. The V1CNC_Skr1p3_xxx_8825 is for the skr 1.3 (not pro or turbo) with simple drivers (like the drv8825 or a4498).
The dual is for 2x and 2y and 1z motor. The DualLR versions have 2y, 1x, and 2z with endstops. The Z homes up.
Is there a firmware combination that is missing? Or is it hard to find the right one?