First Build Issue: End Stop Switches

[3amjosh]

I've gone through the troubleshooting in the forums and none have worked. They show up in terminal L and when pressed change to H. I've cleared the Eprom and have verified the information in the configuration.h tab was correct for the endstop settings. I counted the teeth on the Y axis pulley to ensure that it was indeed 20 teeth. It seems to be the one that is not stopping when I click home. Would love some help! I'm up for a google chat if that works better for anyone.

[Nylocke]

Could you provide more information? What happens when you press the home button? What does the wiring look like (picture)? The Y axis is the issue? Is it plugged into the Y Max endstop? Are the wires all good? Do you have a custom Repetier, or are you using SeeMe's premade Repetier firmware? Are you using a RAMBo or something else?

[3amjosh]

If I hit the home button, they all go up to the end stops but keep going and make a very loud, unhappy noise. When I go into the software to test them in Terminal, they are all responding exactly as they should. I have not done anything custom, I'm using the software as guided in the setup guide. I downloaded the Repeater firmware from SeeMe and using the RAMBo.

[3amjosh]

Here is a pic of the wiring.

[guanu]

most of the time when I've seen this is that you have the x and the z motors swapped (providing when you tested them with M119 individually they were correct (x changed to H for x tower etc.) make sure the the plugs are in the right place basically, or it will do what you are describing..

Guanu

[KAS]

Off the wall question if everything above doesnt work out. Is the stop screw on the cheap skate on the correct side to hit the switch?

[BenTheRighteous]

What you could try is this - manually bring the hotend down near the build plate, then hit the home button, and trigger the endstop for a tower with your finger before the cheapskate actually gets there. Make sure the cheapskate for that same tower is the one that stops moving! Do it for all 3 towers.

Also keep your finger on the power switch and turn the printer off as soon as you have your information - you don't want your towers to start fighting with each other and damaging the effector platform after you hit the endstop prematurely.

[3amjosh]

What you could try is this - manually bring the hotend down near the build plate, then hit the home button, and trigger the endstop for a tower with your finger before the cheapskate actually gets there. Make sure the cheapskate for that same tower is the one that stops moving! Do it for all 3 towers.

Also keep your finger on the power switch and turn the printer off as soon as you have your information - you don't want your towers to start fighting with each other and damaging the effector platform after you hit the endstop prematurely.

I tried that, here is the result!
https://www.youtube.com/watch?v=IPYUqx1 ... e=youtu.be Didn't work though.

[BenTheRighteous]

When I go to your link, I get a youtube error:

This video is private.
Sorry about that.

[3amjosh]

Try it now, it was private for some reason!

[BenTheRighteous]

Oh man! I didn't mean to try to fit all three switches in to one run! Sorry for not being more clear!

What I meant was something more like this:
1. Press Home button, activate X tower end stop switch
2. Observe which tower stops moving
3. Immediately power off machine
4. Reposition hotend near build plate
5. Reactivate machine
6. Press Home button, activate Y tower end stop switch
etc...

Anyway, after watching your video a couple times, I think I can tell that for some reason your end stops aren't matching the steppers that are hitting them, which would seem to agree with what Guanu suggested might be wrong.

I'll try and describe what I saw. Since I don't know which of your towers are X, Y or Z, I'll call them "left tower," "top tower" and "bottom tower" based on where they were in the video frame.

You first manually triggered the endstop for the Left tower. The Left cheapskate stopped moving immediately. Perfect!

Then, you manually triggered the endstop for the Bottom tower. HOWEVER - it was the Top cheapskate that stopped moving! So what happened at that point was that the Bottom tower didn't get the signal to stop, and continued to try and send its cheapskate into the sky.

Lastly, you triggered the endstop for the Top tower, which cause the Bottom tower to stop grinding.

So either you have the endstop wires for your Top and Bottom towers mixed up going into the RAMBo, or the stepper motor wires.

[3amjosh]

I would try that, but now it won't power on... Getting one orange blinking LED on the Rambo, but no sound or indication of power. Is this how all 3d printers are? I was hoping going up in quality I would avoid this sort of frustration.

[Earthbound]

Check to see if wire fell off or pulled out of crimp terminal on power switch. The LED you are seeing may be getting its power from the USB connection.

The "good" indicator of power present is the RAMBo fan. If it is on then the power switch, power supply, and one fuse are all validated.

[bot]

This doesn't sound like a common occurrence. I've ran the rostock for over 400 hours in three months (first three months, at that) without much of a hiccup that wasn't caused by me.

You'll figure it out soon enough.

[3amjosh]

Check to see if wire fell off or pulled out of crimp terminal on power switch. The LED you are seeing may be getting its power from the USB connection.

The "good" indicator of power present is the RAMBo fan. If it is on then the power switch, power supply, and one fuse are all validated.

Is there a place with power on pads that I can short to see if it will power on. I don't see any issue with the cable on the power switch.