Z travel is really slow, don't know why.

Jimustanguitar · Post by **Jimustanguitar** » Mon Sep 23, 2013 8:24 pm

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?

foshon · Post by **foshon** » Tue Sep 24, 2013 7:29 am

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.

Jimustanguitar · Post by **Jimustanguitar** » Tue Sep 24, 2013 8:11 am

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?

Post by **geneb** » Tue Sep 24, 2013 8:59 am

Changing hosts isn't going to affect the EEPROM settings on the RAMBo.

Try this:
G28
G0 Z50 F3500

Does it go fast?

g.

edward · Post by **edward** » Tue Sep 24, 2013 9:31 am

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?

foshon · Post by **foshon** » Wed Sep 25, 2013 7:54 am

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?

Post by **geneb** » Wed Sep 25, 2013 8:52 am

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.

Jimustanguitar · Post by **Jimustanguitar** » Wed Sep 25, 2013 10:12 pm

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.

foshon · Post by **foshon** » Thu Sep 26, 2013 7:36 am

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?

Post by **geneb** » Thu Sep 26, 2013 9:14 am

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.

foshon · Post by **foshon** » Thu Sep 26, 2013 10:37 pm

No, thanks. I've seen you insulted, not interested in going there.

Post by **geneb** » Fri Sep 27, 2013 8:50 am

*looks up, whistles innocently*

g.

Jimustanguitar · Post by **Jimustanguitar** » Mon Oct 07, 2013 5:31 pm

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?

Jimustanguitar · Post by **Jimustanguitar** » Mon Oct 07, 2013 8:00 pm

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?

Post by **Eaglezsoar** » Mon Oct 07, 2013 8:04 pm

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.

Welcome to the SeeMeCNC Community

Z travel is really slow, don't know why.

Z travel is really slow, don't know why.

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Re: Z travel is really slow, don't know why.

Re: Z travel is really slow, don't know why.

Re: Z travel is really slow, don't know why.

Re: Z travel is really slow, don't know why.

Re: Z travel is really slow, don't know why.

Re: Z travel is really slow, don't know why.

Re: Z travel is really slow, don't know why.

Re: Z travel is really slow, don't know why.

Re: Z travel is really slow, don't know why.