Z Axis Slow after Firmware Update March 10, 2017 06:47PM |
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Re: Z Axis Slow after Firmware Update March 11, 2017 01:26AM |
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Re: Z Axis Slow after Firmware Update March 11, 2017 02:29AM |
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Re: Z Axis Slow after Firmware Update March 11, 2017 08:32AM |
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Re: Z Axis Slow after Firmware Update March 11, 2017 09:38AM |
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Re: Z Axis Slow after Firmware Update March 11, 2017 10:29AM |
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Re: Z Axis Slow after Firmware Update March 11, 2017 12:27PM |
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Re: Z Axis Slow after Firmware Update March 11, 2017 12:37PM |
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Re: Z Axis Slow after Firmware Update March 11, 2017 12:44PM |
Registered: 7 years ago Posts: 27 |
Quote
Supermec
Vgala9,
I somehow had I it in my mind that you had an A8 when I posted my last reply. However the mechanics of calculating steps per mm are the same, with the relevant figures for your printer.
Slow movement of the Z axis could simply be an incorrect value for Z Axis Maximum feed-rate in the firmware (assuming that the lead-screws turn freely when operated by hand with the steppers off). What value do you have set currently ? The only guidance that I can give you, is that the value for my A8 is 8mm per second, which represents 1 rev per second of the lead-screws. You could also have an incorrect value set in your slicer (the machine settings for Z feed-rate on mine are the default of 100mm per minute).
The nozzle should not be scraping against a previous layer, since it should rise by the layer thickness before starting to print the next one. It sounds very much as though the Z steps per mm setting in firmware is also incorrect. If the value is too small then the control board will not generate enough steps to raise the nozzle the full layer thickness, but it will still extrude the same amount of filament as though the height was correct. You could try using manual controls to raise Z by a specific amount and then measure the actual amount with a ruler, this will give you a check as to whether the Z steps per mm is correct. Also, just double check the filament diameter in you slicer, as some of them default to an odd value.
#define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,398,94.4962144} // default steps per unit for ultimaker //78.7402, 78.7402,1070,865.88 #define DEFAULT_MAX_FEEDRATE {500, 500, 5, 25} // (mm/sec) #define DEFAULT_MAX_ACCELERATION {9000,9000,100,10000} // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for skeinforge 40+, for older versions raise them a lot.
Re: Z Axis Slow after Firmware Update March 11, 2017 01:38PM |
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Re: Z Axis Slow after Firmware Update March 11, 2017 04:02PM |
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Re: Z Axis Slow after Firmware Update March 12, 2017 12:55PM |
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Re: Z Axis Slow after Firmware Update March 13, 2017 03:26AM |
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//define this to enable EEPROM support #define EEPROM_SETTINGS #if ENABLED(EEPROM_SETTINGS) // To disable EEPROM Serial responses and decrease program space by ~1700 byte: comment this out: #define EEPROM_CHITCHAT // Please keep turned on if you can. #endif
Re: Z Axis Slow after Firmware Update March 17, 2017 09:48PM |
Registered: 7 years ago Posts: 27 |
Quote
o_lampe
You either haven't sent M500 after the calibration or you haven't enabled Eeprom usage in firmware.
//define this to enable EEPROM support #define EEPROM_SETTINGS #if ENABLED(EEPROM_SETTINGS) // To disable EEPROM Serial responses and decrease program space by ~1700 byte: comment this out: #define EEPROM_CHITCHAT // Please keep turned on if you can. #endif
You can also put the M92 Z2560 line in your slicers start code, before G28.