Topic: faster Z axis?
where are the controlls for z axis speed? i like how the Ultimake 2 platform moves down into its park position real fast. and when it goes to print it moves up to the print position real fast
2 2014-02-24 22:36:48 (edited by adrian 2014-02-24 22:37:36)
Re: faster Z axis?
to adjust homing speeds, the settings are in printer settings in repetier-host (not slic3r) on the "printer" tab.
But keep in mind faster speeds equals less torque, so you risk binding.
Uses (or is constrained by) the acceleration/max settings in EEPROM.
Re: faster Z axis?
cool, thanks. it seems to max out at 500 mm/ minute ive tried all kinds of numbers this is as fast as it goes still much faster than it was. is there some kind of firmware code that prohibits it from moving faster? i know the NEMA 17 can move faster than that...
the more i see of the ultimaker2 the more i want one! i hate cura though lol
Re: faster Z axis?
Yes, you could change the f/w limits.
Re: faster Z axis?
coo where about in the firmware are the limits stored?
i got it moving quick when it parks, but when it homes it still moves slow
under printer setting in r host what was the default travel and Z axis feed rates i changed them when playing around but forgot what they were now lol
6 2014-02-25 04:51:26 (edited by MolecularConcept 2014-02-25 05:03:19)
Re: faster Z axis?
i found it in config.h under movement settings.... now im getting compiling errors!
In file included from /Marlin.h:23,
from BlinkM.cpp:5:
/pins.h:1495:2: error: #error Oops! Make sure you have 'Brainwave' selected from the 'Tools -> Boards' menu.
saying that even with the marlin file as is without changing anything.
Re: faster Z axis?
Have you done what the error says - and made sure to select Sanguino from the Tools->Board menu in arduino....
Anyway - that error means what it says - either you dont have the board file selected in tools->board or you have the wrong motherboard type selected in Configuration.h
Re: faster Z axis?
i have a RUMBA i looked and it was set as the sanguino in marlin i reset to 82 thats RUMBA now its saying to selct brain wave i edited my previous post to reflect ^^ there is no "brainwave" board
9 2014-02-25 05:11:02 (edited by adrian 2014-02-25 05:12:28)
Re: faster Z axis?
Rumba is type 80
// 80 = RumbaA brainwave is indeed 82, and an at90usb646 ...
Anyway - if you pick Type 80, and select Mega 2560 ADK from board, all good...
10 2014-02-25 05:17:10 (edited by MolecularConcept 2014-02-25 05:17:51)
Re: faster Z axis?
haha how embarrassing yeah im retarded today 80 is rumba i just went to the rumba wiki and rechecked.. its late lol its compiling now thanks
Re: faster Z axis?
HAHAHA PERFECT!!! thanks a bunch! could this introduce any negative artifacts? it only moves a few step or so when printing
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Re: faster Z axis?
Homing is generally slow for precision. When it comes to X/Y axis, theres not a really great need for precision and repeat-ability as each print job is relative (do you really care if your print is 0.2mm off center of the bed?). But the Z axis is homing to your bed surface. The variance you would see would translate to the thickness of your first layer. For some people, this could mean intermittent problems with sticking depending on how good there bed setup is. Granted, since the mm/revolution is much smaller on the Z axis, this could very well be a moot point. Just saying there is the potential to cause problems.
In general, I always manually move my Z axis close to the homing switch while the bed is warming up because of how slow the homing speed is.
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Re: faster Z axis?
Yes - totally agree. Marlin does have the *_HOME_RETRACT setting:
//homing hits the endstop, then retracts by this distance, before it tries to slowly bump again:
#define X_HOME_RETRACT_MM 5
#define Y_HOME_RETRACT_MM 5
#define Z_HOME_RETRACT_MM 5 which mitigates it to some extent. From memory the slow-re-home (which is after it retracts the above distance off the first time it hits home) is 50% of whats set as homing speed in the firmware...
Re: faster Z axis?
thats about what im seeing . xy were set to 50*6 z was 4*60 i changed it to 50*6 that was to fast, caused some jerky motion brought it down to 40*6 no more jerky motion and z axis feedrate is 1000. im still playing with it im gonna slow it up a little more
what do you guys have for travel feed rate in printer settings i changed it while playing around and i dont remember the default