The name of the printer is G&C Printer from Good & Cheap Printer. My goal was to design an printer that was good print quality and was cheap. The printer use the next corexy mechanism: https://github.com/jand1122/RepRap-XY The total cost of the printer is about 490€. specifications of the printer: All structure is made of aluminium, super rigid, each side was 4 2020 bars. Z axis all aluminium for rigidity and precision. Easy to transport. Support bowden or direct extruder. All electronics and core xy mechanism are hidden and protected with printed panels. Total Volume: 40x40x52cm Real print volume: 20x20x27cm Use 6 endstop, two for each axis. Hotend E3D v6 little, hotbed up to 110ºC Ramp 1.4, mega 256, 1/32 steppers, big LCD with SD card support I have added some extras that are not included in the BOM file: Raspberry with webcam and octoprint Light LED Button on/off with green light filament support with bearings and M8 screw colling for the x,y and extruder motors. Radial print fan. Uploads: I have upload the 3d project where you can get all the necessary printed parts (123dx format). To get the parts to be printed, download for free the software http://www.123dapp.com/design, open the project g&c_core.123dx, select the part you want and export in stl format. The bom file contains all the necessary hardware and the link where you can buy. Uploaded the last firmware marlin (1.1.0) and repetier already configured for this printer. Note: the menu are in Portuguese, you can easy modify this. Uploaded T-nuts printed to fix the printed panels to the printer, do not use this printed t-nut to fix the main structure. I have used and modified several parts that are not my original design, but if you have the intention to build this printer use the parts of my upload because a lot of parts was modifications. I have already finish to build this printer and it can easy print at 100mm/s without any lost of quality. https://www.youtube.com/watch?v=7JI13ryVor8 [14-09-2015] some update information of my tests. The printer use bowden extruder (mk8) with hotend E3D v6 little. The ptfe tube goes from the extruder to the end of the hotend. Already have put more than 60h of printing PLA and never have any jam. But, is necessary to configure the retractions in slider correctly or else i have lot of blobs and tiny filaments. After lot of testing i found that the next configuration work well: retraction 5mm at speed 50mm/s. At very low speed and speed superior to 80mm/s the printer have vibrations and noise in the carriage. After some investigation i found the problem is related with the lm8uu bearings, they are not tight enough/precise. To try to solve this problem i have ordered igus linear bearing, when i receive i will put the result and an video. [23-09-2015] I have replaced the lm8uu with the igus bearing and installed 2 dampers in the x, y axis. Was result the vibration are totally gone and the noise of the carriage movement is almost none. https://www.youtube.com/watch?v=7eLx6U7Vdlw The damper and igus bearing do not increase the print quality, but remove almost all the noise/vibrations made by the corexy movements. This is an almost to do upgrade to print with fast speed. Another problem, printing more complex object the hotend was micro stops and irregular movement, i found the problems is caused because i using a board ramps 1.4 with full graphic lcd. Simple print with not many vortex this problem do not happens. To solve temporary this i have disconnected the lcd and use octoprint to control the printer. The arduino mega do not have the computation power to move the corexy printer correctly with the full graphic lcd, using an simple 20x4 lcd the problem do not happens. An good solution is to built the printer without lcd or with an 4x20 lcd. Was a better solution is to use an 32 board; arduino due + radds, duet, smoothieboard, etc...[25-09-2015] An arduino due and radds 1.5 board ordered, when i have this 32 bit board installed i will post the result. updated boom file with upgrades information i have made.[28-09-2015] Added list of screws and nuts need for the corexy mechanism in the bom file. Corrected dimension of one piece that secure the Z screw at the bottom of the printer.[29-09-2015] updated bom file, added info of missing 608zz and M4 washers[03-10-2015] Added an direct mk8 extruder 1.75 mm in the 3d project and some missing information about the right idler. updated bom file.[04-10-2015] Modified the direct extruder to be attached to the carriage with 4 x M3 25mm and 4 x M3 screws. There is no more need of using glue and the extruder can be rotated in different positions. Added better belt holders (they are in purple color in the file g&c_core.123dx).[06-10-2015] Added hair spray holder to put in the 2020 extrusion. It can be used to put some tools.[08-10-2015] Corrected errors and added more util info in the bom file.[11-10-2015] Redesign of the Z axis, the Z motor was moved from the top to the bottom of the printer. Vantages of this change: necessary less cables for the z motor, motor is hidden and protected, better support of the bed structure, less vibrations and removed one printed pla piece used to remove the vibrations. Updated bom file: removed one 608 bearing that is not more need with the new Z axis. New Z axis homing test and fast moving: https://www.youtube.com/watch?v=Ybw2uwPLdk4 Thank you David for your help.[12-10-2015] updated bom file with information of the screws and nuts used for the Z axis.[15-10-2015] modified the piece that connect the z screw to the bed, removed the 2 upper holes. Uploaded the repetier firmware for radds board and arduino due.[28-10-2015] Added repetier firmware configured to use 1/128 steppers and radds lcd. Put more 40h of printing using the 32 bit board radds 1.5 (used repetier and reprapFirmware), and all the problem of speed and micro pause are gone.[30-10-2015] Added printed arm that secure an cheap windows 10 tablet. The tablet allow to make the sliding, controls the print process in real time. Added an new panel that allow to use an radds lcd 20x4. tablet used: http://www.gearbest.com/tablet-pcs/pp_219480.html?vip=63969Consult the 3d project where you can find all the parts and how they are put together.marlin.zip: marlin firmware with full graphic LCD and 1/16 steppers.Repetier.zip: Repetier firmware with full graphic LCD, 1/16 steppers.Repetier_NoLcd_32steppers.zip: repetier firmware with lcd disconnected and SD card active. using 1/32 steppers. The version was a lot of little upgrade, use this one was base.Repetier_radds_128_LCD20x4.zip: repetier firmware with radds+ arduino due, lcd radds 20x4, external sd card, 1/128 steppers, watch dog active.Repetier_due.zip: Repetier firmware with radds + arduino due, 1/32 steppers, no lcd, internal micro SD, watch dog active.Support for an radds board + arduino due: http://www.thingiverse.com/thing:832353Arm to add an tablet: http://www.thingiverse.com/thing:731012