Also ,you can try my decision for large heat bed. (450x600mm)by rarprint - Developers
Quotedc42 I suggest you search this forum for "CoreXZ". There is at least one thread on this subject. Thank u dc42! I found answers in this topicby rarprint - Developers
Quotenewbob Have you looked at Klipper firmware? It's still in development and since recently has a feature to control multiple controller boards. You'll need to add raspberry pi to your setup. It's not a drop in solution but I think it would the most cost effective and high performance. Here's thread with more info: http://forums.reprap.org/read.php?147,667655,page=6 Very interesting! thanby rarprint - Developers
May be you need to define 1 extruder, then // This defines the number of extruders // :[1, 2, 3, 4, 5] #define EXTRUDERS 2 ( Need to be 1, because you define SINGLENOZZLE later for cuclops) // For Cyclops or any "multi-extruder" that shares a single nozzle. #define SINGLENOZZLE Also you need define temp sensor for second extruder #define TEMP_SENSOR_0 1 #define TEMP_SENSOR_1 0 ( define 1 fby rarprint - Developers
Hello! I try to make kinematics like in 3dp fdm 3d printer only with belt. In original they use screws: I made drawing with reference to original coreXY kinematics, tell me where I made mistake? There is only X axis where extruder moving and Z axis where all vertical portal move up and down. Could be this reproduce with coreXY kinematics?by rarprint - Developers
Hi all! thank u for questions. In back side of 3d printer I moun two Arduino MEGA 2560 +Ramps 1.4 + RepRap full graphic display (front side). One board run one side of 3d printer. You can print directly trhrough USB from computer. But I print from SD card via RepRap full graphic display At this render you can see two boards mounted on 12V 30A power supply. Novadays I try to find decision hoby rarprint - Developers
Hi all! My name is Mikhail, 28 years old. I am free engineer from Siberia, Russia. May be someone know me from these open source project, that I made 3 years ago RAR Print - Open source, low-cost, photopolymer 3D printer/. Last year I repaired UP!plus2 3d printer. It is made a good impression on me and worked for a long time, but... all the engineers have to improve things and I could not resisby rarprint - Developers
Hi all! Some testing doing today. Heating works fine, but to heat all 12 segments (150x150mm one segment) to 70 degrees, takes about 15-20min. After heating to target temperature all stable. I use 12 cartridge heaters 4.8 Ohm one. Power supply is 12 Volts 30A DC. 70 degrees target heating done Temp is stable. Second photo View from side to the prototype 12 segments heat bed with 4mm glby rarprint - Developers
Hi! In my experience with 30x30 extruded aluminium profiles it is better to use steel 3 or 4mm thick corners. It is easy to make with laser or plasma cutter with very good accuracy,also it is automatically gives you parallels and 90 degrees angles.by rarprint - Developers
Hi all! Good news 12 heaters have control board for my big 3d printer GIGA The decision is: 1) Main board is Arduino MEGA 2560 (because it's cheap and have 12 analog and 12 digital pins with PWM) 2) Display is Nextion HMI 7" (basic version), also cheap and easy to coding I attach project files, may be it will be useful for somebody... Programm code is not perfect it use Arduino Nextion libraby rarprint - Developers
Thank u for answer! I think another arduino + Ramps for controlling heat beds are better. I shot little video of printing procces with 2 of 12 heat bed's : https://youtu.be/7d-dO_frRug About current consumption: 12 Volt / 6 Ohm = 2 Amps It is for one heat bed. For 12 is 24 Amps. I have power 12 Volt 30 Amps = 360 Watt. It will be enufby rarprint - Developers
Hi all! I made prototype of fff 3d printer with build area 450 x 600 x 700 mm (XYZ). It have core XY kinematics. There are problem to find and make so big heat bed and i decide make it with 12 separate heat bed's (150x150 mm) each, see photo in attach. Also it give chance to heat only one small build area, not all heat bed. See attach Each heat bed platform have 12 Volt heater and temp senby rarprint - Developers