SoliForum - 3D Printing Community — Need help dialing in my new printer

Re: Need help dialing in my new printer

2019-11-02T22:53:20Z

OK looks like I put my foot in mouth once more.

I did find this info on the ultimaker forum

As @ultiarjan said, the UM2(+) and UMO are completely open source.
Though I'd like to add that:
The python code running on the UM3 S5 and S3 is readable/writable. If you enable developer mode you can log into the printer and gain access. The UM3 display is then the only exception, the S5 and S3 display use plain readable python and qml for the display as well.
I was also given to understand from some of the support members that if you have the UM3/S5/S3 and request the open source code you'd get more than just the marlin code. The marlin code is most definitely open source and available upon request.
A lot of the parameters you might want to change in the UM3 are in configuration files so depending on what you want to do it might be easier to modify this in small ways. look in /usr/share/machines/um3.json and related files in that directory on the UM3/S5/S3 for some examples. but for instance the steps per unit (a unit being a mm of motion) can be easily changed if you changed your feeder for instance.

So yes you can make changes but the machine in no longer open source.

https://community.ultimaker.com/topic/2 … -firmware/

Re: Need help dialing in my new printer

2019-11-02T19:15:01Z

IS it ?? His new machine is an ULTIMAKER which has its roots as a repstrap machine. But is see no current info on the reprap wiki . Going to the ultimaker web site also had no real information like a downloadable pdf manual.

This link mentions that the board is ,based on MEGA 2560

https://www.ebay.com/itm/New-for-Ultima … 100623.m-1

So does this machine indeed have a mighty board like the MakerBot and clones or something different.

Re: Need help dialing in my new printer

2019-11-02T16:44:15Z

Tim his machine uses a Mightyboard. None of that stuff works on it.

Re: Need help dialing in my new printer

2019-11-02T14:15:55Z

Dale there are actually three methods of changing steps in your firmware are three ways' of accessing steps per mm.

1) get a copy of the firmware open it with an IDE make the desired changed then compile and load to printer. I believe this is the method carl refers to.
2) access the setting though control software.

In repiter Host under config there is a option to read and adjust these settings under the option Firmware eprom settings.
The chitcat option needs to be turned on in the firmware for this to work .
I expect other host programs have this option as well.

3) last but not least you can use m codes to read and adjust these settings.

There are several tutorials on line that explain the procedure

https://all3dp.com/2/how-to-calibrate-a … explained/

M503 lists current settings

M92 enters a new value ex M92 X98.52
and m500 saves the new value. you will have to calculate the new value for each axis.

Probably a good idea to calibrate your extruder first then the x,y.z

hope this helps

Re: Need help dialing in my new printer

2019-11-02T06:29:42Z

The only way to fix this is through calibration of your xyz steps per mm.. Unless you have access to your firmware there is no other way to do it. If you don't have firmware access then this is the best you can get and will have to scale down to compensate for the overage.

Need help dialing in my new printer

2019-11-02T02:55:08Z

I have an ultimaker S3 and am running stock software ( Cura )
Printed a Calibration cube with the Tough pla that came with the printer.
the cube below (2nd one printed) is still oversize it is a 20mm cube
X - 20.33
y- 20.33
z- 19.90
after first cube i slowed the speed done
Travel speed was 150mm/s now 100mm/s
print speed was 50mm/s now 40mm/s

what do I need to do.
Thanks
Dale