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Z travel is really slow, don't know why.
Posted: Mon Sep 23, 2013 8:24 pm
by Jimustanguitar
I've got a new laptop, and I've obviously set something up in Repetier incorrectly... When I run the manual controls, homing the axes moves the machine up at a normal speed. When I manually jog Z down, it moves like a snail. Like really really really slow.
I found the setting to change in the printer setup tab under "Z axis feedrate" (duh, right?) and was able to get everything to move at the right speed when I manually jog the controls.
My problem is: when I run a job from Repetier (GCode from Cura, in this case), it still moves really slowly in the Z direction. It's like the setting that I changed only applied to the manual controls, and it's still getting the wrong speed when it's operating off of the sliced G-Code...
It feels like I have a firmware thing going on, but I didn't change that until later in my troubleshooting, and it behaved the same... What am I missing?
Re: Z travel is really slow, don't know why.
Posted: Tue Sep 24, 2013 7:29 am
by foshon
Is the speed correct in the G-code? If so I would double check the EEprom settings, I'm assuming that new laptop = new host software = clear EEProm.
Re: Z travel is really slow, don't know why.
Posted: Tue Sep 24, 2013 8:11 am
by Jimustanguitar
foshon wrote:Is the speed correct in the G-code? If so I would double check the EEprom settings, I'm assuming that new laptop = new host software = clear EEProm.
Doesn't the EEPROM live in the RAMBO board though?
Re: Z travel is really slow, don't know why.
Posted: Tue Sep 24, 2013 8:59 am
by geneb
Changing hosts isn't going to affect the EEPROM settings on the RAMBo.
Try this:
G28
G0 Z50 F3500
Does it go fast?
g.
Re: Z travel is really slow, don't know why.
Posted: Tue Sep 24, 2013 9:31 am
by edward
Jimustanguitar wrote:foshon wrote:Is the speed correct in the G-code? If so I would double check the EEprom settings, I'm assuming that new laptop = new host software = clear EEProm.
Doesn't the EEPROM live in the RAMBO board though?
Yes it does. There is no reason new software should overwrite the EEPROM unless there is a massive "KILL ALL PRINTERS!" bug present.
What values do you have for the Z acceleration and jerk?
Re: Z travel is really slow, don't know why.
Posted: Wed Sep 25, 2013 7:54 am
by foshon
I did not know that, so if I switch to pronterface or something, my EEProm settings stay? Either way you should be able to check them right with the new software right?
Re: Z travel is really slow, don't know why.
Posted: Wed Sep 25, 2013 8:52 am
by geneb
Pronterface doesn't grok EEPROM settings. (I don't think). The EEPROM btw, is a little Electrically Erasable/Programmable Read Only Memory chip that lives on the RAMBo board.
g.
Re: Z travel is really slow, don't know why.
Posted: Wed Sep 25, 2013 10:12 pm
by Jimustanguitar
geneb wrote:
Try this:
G28
G0 Z50 F3500
Does it go fast?
g.
Yep, Gene. It moves normal speed when I manually send this code...
Tried a different Slicer and it seems that I have a glitch in Cura that caused this. Interesting that Repetier started with odd settings that made it move slowly with manual controls as well.
Re: Z travel is really slow, don't know why.
Posted: Thu Sep 26, 2013 7:36 am
by foshon
geneb wrote:Pronterface doesn't grok EEPROM settings. (I don't think). The EEPROM btw, is a little Electrically Erasable/Programmable Read Only Memory chip that lives on the RAMBo board.
g.
Did I spell it wrong or are you really "nazi" ing my lack of capitalization?

Re: Z travel is really slow, don't know why.
Posted: Thu Sep 26, 2013 9:14 am
by geneb
Nope. If I was going grammar nazi on you, you'd know it. I'm about as subtle as a brick to the face.
g.
Re: Z travel is really slow, don't know why.
Posted: Thu Sep 26, 2013 10:37 pm
by foshon
No, thanks. I've seen you insulted, not interested in going there.
Re: Z travel is really slow, don't know why.
Posted: Fri Sep 27, 2013 8:50 am
by geneb
*looks up, whistles innocently*
g.
Re: Z travel is really slow, don't know why.
Posted: Mon Oct 07, 2013 5:31 pm
by Jimustanguitar
I'm fighting with this again...
On GCode form Slicer built into repetier, it runs normally over USB but runs slow with the SD card...
Any ideas of what to look for? Is there a speed setting that I might have wrong in the firmware that is buggering my SD print but would be overridden by software settings while running it from Repetier?
Re: Z travel is really slow, don't know why.
Posted: Mon Oct 07, 2013 8:00 pm
by Jimustanguitar
The plot thickens... Running another print over USB moved it slowly. Flipping the power and trying the same thing again yielded better results.
What the heck is going on?
Re: Z travel is really slow, don't know why.
Posted: Mon Oct 07, 2013 8:04 pm
by Eaglezsoar
Jimustanguitar wrote:I'm fighting with this again...
On GCode form Slicer built into repetier, it runs normally over USB but runs slow with the SD card...
Any ideas of what to look for? Is there a speed setting that I might have wrong in the firmware that is buggering my SD print but would be overridden by software settings while running it from Repetier?
Jim, do you have the ferrite cores on your lcd module wires? If not that is one of the first things I would do. I have previously posted at
least two messages about which ones to get from Digikey, perhaps you can find them and if not I will look it up again if need be.