3D Printing Forum

mpoling wrote:Hi Chip, I have your firmware running fairly well now, but one problem I can't seem to change. When I run the stock firmware, the Z Axis is fine. But when I load your firmware, the Z-axis is too high by several mm, probably 3 or 4. Changing the inductive Z-sensor doesn't seem to matter-the Z-home seems to be fine, but when the print starts, it is 4-5 mm above the bed.
Any settings in the firmware I can change that may affect that?

// Default AXIS STEPS, MAX_FEEDRATE, ACCELERATION settings

// Default AXIS STEP Settings (motor steps) X, Y, Z, E
// 1a) default axis steps per unit for Ultimaker steps/mm ={8.7402,78.7402,200.0*8/3,760*1.1}
// 1b) default axis steps per unit for HIC i3 steps/mm ={80,80,2560,94.4962144}, OEM z-axis threaded rods =8mm wide x 1.25mm pitch
//#define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,2560,94.4962144} // original default for HIC i3, (steps/mm)
#define DEFAULT_AXIS_STEPS_PER_UNIT {80, 80, 2559, 94.6} // CL: default steps for _my_ HIC i3, you may need to change the Z and/or E for your machine

dragsterbox wrote:Dear all,

Thanks chip luck for this awesome job.

Is it going to work on my Hictop prusa I3 (3DP17) with filament monitor and auto leveling ?

Thanks.

blc wrote:Thanks for the awesome work with this. I haven't gone through all lines of both configuration.h and configuration_adv.h yet - I'm in the process of doing so before adding an inductive sensor - but I notice that you left EEPROM disabled (line 775 of config.h).

Just checking whether that was a mistake or if it was deliberate? Previous versions of the firmware you've uploaded (at least the ones I've used) have had EEPROM enabled.

I'm enabling it for my config because it makes calibration that much easier.

rcabor wrote:So how is the firmware running? Could you post your configuration.h?

Thanks!

Chaco wrote:I just got my config settings moved over to RC8... currently printing off it... lets see how it goes.

Chip Luck wrote:

mpoling wrote:Hi Chip, I have your firmware running fairly well now, but one problem I can't seem to change. When I run the stock firmware, the Z Axis is fine. But when I load your firmware, the Z-axis is too high by several mm, probably 3 or 4. Changing the inductive Z-sensor doesn't seem to matter-the Z-home seems to be fine, but when the print starts, it is 4-5 mm above the bed.
Any settings in the firmware I can change that may affect that?

You have to change your Z AXIS STEPS in the Configuration.h file. It looks like you have non 'stock OEM' z-axis threaded rods and your pitch per mm is different. Do not know exactly what you have so I cannot tell you the change you need to make. Again, you need to research your z-axis travel and set the Z STEPS (third value shown in the #define statement) to match your particular setup. Sample part of the code is here: