8 hours ago, scott-har said:Hi All,
I have a UM2+ which I've upgraded in the following way....
Mechanical
Fully enclosed top and front panel.
Converted to 1.75mm filament (ender 3 extruder hardware) and capricorn bowden tube.
Hotend
E3D V6 all metal hotend with pure copper volcano, 60Watt cartridge, 24v 30A Makers 3D mosfet. PT100 sensor
Custom water cooling with 120mm radiator.
Heated bed
E3D 215x215 AC Silicone bed controlled by solid state relay. 10mm aluminium plate on top with PT100 inserted in the side of it.
The issue I'm faced with is the software limits for temperatures. I've had the nozzle up to 385c and the bed up to 190c (measured with fluke infrared thermometer gun - PT100 sensor measure 115c as it wasn't inserted into build plate).
I've been using a E3D hex file and a
Eeprom detailed here. https://wiki.e3d-online.com/E3D-v6_on_Ultimaker_2.
The stepper motor for the extruder goes sooo fast it stops and beeps loudly.
I've tried about 10-15 hex files and marlin uploads with limited success or various issues.
So I'm reaching out to others who have ventured on similar pursuits with the following proposal.... I will happily pay via Paypal for someone who can demonstrate a working code on a UM2+ or assist me with finishing the coding to get things running correctly.
Thanks in advance.
Best Regards, Scott
I will send u my hex which can give u about 450C on the nozzle...but the u will need the chamber warm to help it go there ..... cant just go 450C on its own ..... about steppers going too fast and all ..... i hope u havent changed any steps and all..... however if u heated the chamber too much you could have damaged the motors already and then u might need replacements..... for the file i will just send it to @gr5 i guess he will dropbox it or something ..... please be careful and measure all temps correctly ...... cause at 95-100C the UM2 enclosure will start to melt ..... and u would want any melting or fires around ..... be safe while doing these kinda materials ...... use proper equipment like face masks(for those bad gasses etc) also gloves for handling the equipment at its very hot ..... and i wouldnt suggest taking the bed over 170C unless u have better solders ....... ur bed solders might start to give in above those temps....
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gr5 2,224
First of all read the below post. Then contact @rajilpahuja as he has a version of the UM2 firmware that can go much hotter for the bed and the nozzle.
What Rajil did was to put TWO heated beds together. The exsiting UM one which has it's own PT100 and heat pad already and an extra heater that assists. The actual temperature regulation is controlled normally by the ultimaker firmware but it gets an assist from a second heater.
Note also that he had to protect the steppers from overheating as the air needs to be at least 65C and preferably 80C (80C is definitely too hot for the steppers).
Hopefully Rajil can put a copy of the firmware on dropbox or similar location and post a link to it here. And then I will also edit his post below and add it to the first posting (unless Rajil does it first).
If Rajil doesn't reply within 24 hours send me a DM and I'll contact tinkerGnome.
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