MTG 4 Posted July 6, 2016 in Ultimaker 2+ technical documentation Dear Ultimaker Community, im new to this forum and i'm planning to try some modifications on our half year old Ultimaker 2+ Extended. I'm an engineering student, searching a project for bachelor thesis, and maybe an Ultimaker modification will be suitable. My special field is production technology. Parallel to my study, I have been working in our family business for a couple of years now. We are developing and manufacturing medical devices and medical supply units, so I have access to machinery like cnc milling and turning machines. I'm specially interested in making an enclosure (which shouln't be that hard) and a new approach on dual extrusion. Right now, I'm having hard times to get some information about the ultimaker. I found the 3d-models on Github, but I can't find an electrical documentation. I have these questions by the moment: Where to connect a second stepper/temp-sensor/heater for dual extrusion? Is there an official firmware which supports dual extrusion? Is there really a problem with the power supply? I read that you get trouble when using two 35W heaters, but two 25W are fine. What is the Ultimaker standard? 25W? Is there the possibility to connect an small stepper motor (just for tool change)? Can I get this kind of information at any place? I don't want to burden the community with every small question i have. Thank you for any help, I hope I can return it someday. Regards, Alex Share this post Link to post Share on other sites
neotko 1,355 Posted July 7, 2016 in Ultimaker 2+ technical documentation Where to connect a second stepper/temp-sensor/heater for dual extrusion? Is there an official firmware which supports dual extrusion? On the board you have the second heater/pt100/extruder. Read the pdf of the board googling 'github ultimaker 2' Official firmware no. I think tinkergnome firmware or just editing your own Marlin it's the way to go. Is there really a problem with the power supply? I read that you get trouble when using two 35W heaters, but two 25W are fine. What is the Ultimaker standard? 25W? Um2 non plus used 25W so in a future a second 25W could be added. Um2+ uses 35w since they officially said that there won't be dual from them on um2 (but there are a few mods that are in progress https://ultimaker.com/en/community/21676-dual-nozzle-ultimaker-2?page=last#reply-150491 ). For my dual tests on umo+ (same board) I used a meanwell 280W power supply since umo+ uses by default 40W heaters. Is there the possibility to connect an small stepper motor (just for tool change)? As long it's 4 wire bipolar I don't see why not. But also, if you want to make a servo to rotate the hotend or you need a third motor then you will need to find how since the board only has 1 extra stepper for the second extruder. Share this post Link to post Share on other sites
MTG 4 Posted July 7, 2016 in Ultimaker 2+ technical documentation Is there the possibility to connect an small stepper motor (just for tool change)? As long it's 4 wire bipolar I don't see why not. But also, if you want to make a servo to rotate the hotend or you need a third motor then you will need to find how since the board only has 1 extra stepper for the second extruder. Tank you, found it. That's the point, the extra motor will be used for the second extruder, so I need to find a way for an third (extra extra) stepper motor. Is there any way to get a signal from any unused pins or connectors? I can connect the small stepper by using extra electronics, but is there something on the mainboard which i could use to get a signal to the extra electronics? Share this post Link to post Share on other sites
neotko 1,355 Posted July 7, 2016 in Ultimaker 2+ technical documentation There are a few unused pins on the board, I know that there's a 5v pin somewhere. On the PDF 2.1.1 there's a list of all the unused pins. Maybe other fast solution could be using the led pwm as a signal to an external board. Share this post Link to post Share on other sites
MTG 4 Posted August 17, 2016 in Ultimaker 2+ technical documentation Can someone help me find an unused 5V pin? I'm not very good at reading circuit diagrams. Would like to give a signal to an arduino. LED pwm might work, but i would prefer a 5V pin. As far as I know I can control any pin with the M42 command? Is that right? Share this post Link to post Share on other sites
MTG 4 Posted October 10, 2016 in Ultimaker 2+ technical documentation (edited) Are these the unused pins that are controllable by the M42-Command? Sorry that I can't figure it out by myself, but im really not good at reding these circuit diagrams.. Edit: So what are the Pins that are 5V? Edited October 10, 2016 by Guest Share this post Link to post Share on other sites
