Show all posts by user

Re: Limited Y-axis travel and Y-axis endstop not working - 7 years ago

Thanks Steve, I made those changes and I'm getting great results as far as endstops working and direction and length of travel on the X and Y axis. Thank You! Now I'm trying to figure out how the 0,0 point is defined in Marlin. When I click the "bullseye" in Pronterface I can see that it is sending the following to the printer, "SENDING:G0 X85.0 Y85.0 F3000" and the hotend is being positioned

by bchamp4 - Prusa i3 and variants

Re: Limited Y-axis travel and Y-axis endstop not working - 7 years ago

Thank you very much for the response. Disabling the Z-axis was a mistake on my part. I was reading through several different tutorials on setting up Marlin and that was suggested as a way to fine tune the Z-axis position during a print. Re-thinking that now I see where that does not apply to my particular set-up (that tutorial was written about a printer that has knobs on the tops of the Z-axi

by bchamp4 - Prusa i3 and variants

Limited Y-axis travel and Y-axis endstop not working - 7 years ago

Greetings All! Trying to get the bugs worked out on my first build Here are my specs. Prusa i3 box frame ATmega 2560 with RAMPS 1.4 and 5 A4988 motor drivers. 3 mechanical endstops Arduino v 1.6.5 Marlin firmware I've gotten movement from X,Y, Z, and extruder. I've gone through the Prusa calculator and modified the firmware to match hardware I'm using. Here's the issue I've come up against.

by bchamp4 - Prusa i3 and variants

Re: UPDATE-Re: Yaxis not working with new step stick. Still Not working with new RAMPS board - 7 years ago

I agree that this is probably the best work around for my situation. I found a few posts about how to accomplish switching the yaxis over to the E1 port. It involved editing the stepper.cpp file but specifically indicated that the pins.h should not be changed. Here's the ref to that other forum entry, . That thread is from August of 2012 so it may be that something substantial has changed i

by bchamp4 - RAMPS Electronics

UPDATE-Re: Yaxis not working with new step stick. Still Not working with new RAMPS board - 7 years ago

The new RAMPS 1.4 board arrived today and I anxiously got it installed and rewired. Unfortunately it appears that the Yaxis port on this new RAMPS board is not functioning either. I suspect there may be damage to the Arduino board circuits that supply signals to the Yaxis port. Does anyone have any pointers or troubleshooting advice to share? I was hoping that there might be some diagnostics

by bchamp4 - RAMPS Electronics

Re: Yaxis not working with new step stick - 7 years ago

Thanks O_lampe! When I switched out the y-axis A4988 for a known working one I got the same results (no movement of the yaxis). And, if I move the y-axis motor leads to the x-axis port on the RAMPS board, the y-axis stepper runs normally. Thanks for helping me confirm my suspicion. I've got another RAMPS board on order and another ATMEGA 2560 in case the damage is deeper than just the RAMPS bo

by bchamp4 - RAMPS Electronics

Yaxis not working with new step stick - 7 years ago

Hello RepRap, This is my first post so if I break any cardinal rules please be patient. And yes, I'm a noob. I did a few searches on this (and other forums) but didn't find anything that looked like what I'm experiencing so I thought I'd post my cry for help here. Thanks in advance for any help! I've been working on my first build, Prusa i3, RAMPS 1.4, Stepper Drivers A4988, ATMEGA 2560. Man

by bchamp4 - RAMPS Electronics