i never noticed this problem (small hill in the center), but i never printed less of 0.15...by filipeCampos - CoreXY Machines
Builded my printer with 8mm Y rods 360mm. I agree that 10mm rods is better that 8mm, and 12mm will better that 10mm rods. BUT, in a small printer (30cm x 20cm) i pretty sure that using 8mm, 10mm or 12mm will produce the same print quality. I not saying there is no bending at all, but the bending will be very small and most of the time always apply in the same direction. In my opinion this is oby filipeCampos - CoreXY Machines
yes, it can be rectangular 30x20 is still pretty small, 8mm or 10mm rods will work fine. 12mm is overkillby filipeCampos - CoreXY Machines
The cnc is pretty messy, is definitely not something you want in the house... I have used to cnc only to cut some 2 e 3 mm acrylic, wood and mdf, and it works great. In the future i will try with aluminium, but i still not sure if the machine was enough power for the job... About the center panel you are correct, one big 40cm x 40cm in not easy to remove in case you need to access to board. Iby filipeCampos - CoreXY Machines
Hi, Some updates on the printer... I have build an printed CNC, the CNC is called Mostly Printed CNC. where is the link: There are two version: the original and the internacial. I have build the internacional. The cnc is finished and allows me to add some new upgrades to the G&C printer. the CNC: First upgrade i working on is some nice acrylic panels. I designing panels to cover all siby filipeCampos - CoreXY Machines
I have a simple question... i building a cnc and only want to home x and y axis when doing the homing all operation. In the repetier online configurator i not found this option. This is possible?by filipeCampos - Repetier
1) First i need to say i not 100% sure what are all the necessary changes to put an 30x30 bed, but i will try to not forget anything. -The obvious changes: buy all lateral 20x20 extrusion with more 10cm, The 20x60 extrusion add too more 10cm and more 10 to the 2 20x20 bed arms - instead of two 12mm rods use 14mm rods and buy the receptive 14mm linear bearings for this rods. I not sure if the 12mby filipeCampos - CoreXY Machines
Quotepeps1 LCD: when ever I turn on the printer I have to hit the reset button on the LCD to bring up the display. I think i have the same problem, solved by upgrading the firmware of the usb chip. The solution is explain in the next several posts:by filipeCampos - Controllers
Printing at 300-600mm/s, up to 500 mm3/s... The only hotend that maybe could achieve this is the E3D vulcano, what hotend you will use?by filipeCampos - CoreXY Machines
about the bowden extruder, i have used one at first and spend several weeks to try to get to work without retrations problems, the bowden ptfe tube was 50cm. at the end i was using retration value that reduced the problem but never complety solved. Changed to an direct one and never have any retration problem. somes get good result with bowden, but not in my case. And to be honest i do not see hby filipeCampos - CoreXY Machines
very cool design... i have the same opinion was dalius98 about the frame, looks very cool but i not sure if you will have some stability problem. But if your atual design was problem then you could add a 3 vertical bar behind to add ridigity and put on it an third rail for the z axis. i sugest to replace bowden to a direct setup, it will give less possible problem and better print quality.by filipeCampos - CoreXY Machines
extend the 4 verticle posts by 20mm to compensate the missing cubes. in the bom file there have 500mm, you need to buy with 520mm. You need 8 joints, before buying check if the dimensions are the correct one for your 2020 profile. The link i have put was only an example and i do not have confirmed if the dimension are ok. If you have already buy the 4 x 2020 posts, you can still use is... but thby filipeCampos - CoreXY Machines
I do not know for sure, but i think is not an good choise. The cube was 20x20mm, you can add 20mm more to the 4 horizontal 2020 bars and use other type of metallic connector, like this one: or better, an bracket to put on the top: You have lots of possible option, avoid at the maximum to use printed parts on the main structure.by filipeCampos - CoreXY Machines
The use of cantilevered bed depends to size of the bed and is weight. When you have small bed (up to 30x30 cm) cantilevering bed is the best option, most of the times is the simplest solution and the cheapest. I have an cantilevering bed of 20x20cm with 12mm aluminium rods and linear bearings, the bed just work fine. With bigger beds like 30x30 you can simple use bigger rods of 14 or 16mm.by filipeCampos - CoreXY Machines
Quoteeviltoy could i use this instead of the SCV12UU as they are not available in my country No, you can not secure correctly the sc12uu bearings to the 20x60 aluminium bar. The sc12uu and scv12uu are almost the same, but the sc12uu use 4 screws to be secured on the aluminum profile and the scv12uu only 2 screws. On the original design, the 4 linear bearings will be secured on the 20x60 alumby filipeCampos - CoreXY Machines
I have tested the reprapfirmare with radds and for an firmware in testing phase i was very impressed. At the moment i using repetier firmware because the lack of radds lcd support of the reprapfirmware, but when it will have the lcd support i definitely planning to move to the reprapfirmware. Was print quality or velocity, i do not have noticed any big difference between the two firmware (testeby filipeCampos - Controllers
I think pla is better, easy to print and more rigid. I have uploaded the dual hotend version on thinginverse.by filipeCampos - CoreXY Machines
Looks like an great design, looking forward to see the evolution of this printer... You are planning to use heavy hardware, this will be expensive. About motor use nema 17, 1.5 or 1.7A and 1.8 degre. The fan to cold down the pla is an must in my opinion, without the fans there are prints that are not possible to print with good quality. If you whant to print only abs them forget the fans, if youby filipeCampos - CoreXY Machines
Quotecritter42 Hi! I've been doing some looking around and I plan to make this my next build. I'll probably get started sooner, but it may take a month or more before I really get ramped up on this. I did have two questions: 1) If I wanted to increase the build plate size, is there any issue with the cantilevered bed if I widen the Z axis rails? Also, what are your thoughts on adding a crossbeamby filipeCampos - CoreXY Machines
Hi I only uploaded the project of the printer in 123d format. Stl format do not allow to have all pieces together in one unique file. 123desing support windows and mac, what do you have?by filipeCampos - CoreXY Machines
Hi, Finished the conversion of the printer to an dual hotend. It use 2 E3D v6 or E3D v6 little version. The carriage is was not modify, this allow to easy modify or change again to only one hotend. Where are some picture of the final result. I still need to make some final adjustment to the 3d files, after theses adjustment i will upload the project. I have made some prints to tests and overalby filipeCampos - CoreXY Machines
This is an slider problem. Check the value of the height of the first layer in cura or slic3r. Your are sliding with what layer height?by filipeCampos - Repetier
Hi, I changing my printer to have an second hotend. Still not made any tests, but pretty sure i will have oozing problems. found several solutions online, but the best one i think it will work to not have oozing of the hotend that is not in use is to lower is temperature. I have checked the repetier online configurator and for each extruder is possible to add Select commands and Deselect commanby filipeCampos - Repetier
wowwww, heavy stuffs... Can you explain better how theses servo motors works and why using it instead of the normal stepper motor? about your nozzle problem, can you post some photos of the setup you have and give more info of the problem.by filipeCampos - CoreXY Machines
Hi, If the x, y, z axis are not moving but the motor are making noise, them it can be the problem of the lack of voltage or you need to increase the Amps of the steppers to something more of 0.9. You are using big nema23 motors that work 24v to 42v, have you checked if the rumba board is providing the minimum 24v? If the 4 cables motors are not correctly connected this problems happens too, checby filipeCampos - Controllers
Hi dnewman, Have you done progress on the lcd support for the reprapfirmware?by filipeCampos - Controllers
I changing my printer to have two E3D v6 hotend and two direct mk8 extruder, the carriage will have +/- 800gr. This is my first try and i will try to use the 8mm rodds one both x and y axis, not sure if the weight of the carriage will give me problems or not. But my printer was an small print area (20x20), so i hope the 8mm rodds will be ok. In my case if i found artifacts problems i the prints iby filipeCampos - CoreXY Machines
something soft will remove most of the vibration, there is no need of something so drastic. Instead of making this mods, you can remove most of the vibrations made by the printer upgrading the steppers to 1/128. these steppers will remove almost all vibration and there is no need of this type of dampers.by filipeCampos - CoreXY Machines
At the moment i have an big motor in the carriage and already printed as 120mm/s without any problem. I will add a new small motor (285gr), mk8, e3d and one more radial fan, adding more an total 350 to 400gr My goal is to have an good print quality with speeds between 60mm to 80mm/s, i think there are good chance to achieve this. In case i have artifact in the print, then i planning to change thby filipeCampos - CoreXY Machines
Hi David, I making an new design to add an second E3D v6. I´m trying to design the new pieces without the need to change the carriage, so far i have the first version of the 2 piece that will secure the two E3D V6. I still need to design an piece that will secure two mk8 extruder on the top of the carriage, I will use two china aluminium mk8. The two E3D will have an bowden setup, there will beby filipeCampos - CoreXY Machines