QuoteWannaFly Hi. I am new to the 3D printers. Now I want to build a 3D printer with 3 extruders and only 1 nozzle. Which are the best electronics and software choices? I am starting to read the repetier firmware, is it possible to use repetier firmware and repetier host for my machine? Should I use 1 arduino for controlling XYZ and another for 3 extruders? Any idea or pointing is greatly appreciby Xabbax - General
Bought the pigment at my local hardware shop in the paint department.by Xabbax - Plastic Extruder Working Group
Quoteianmcmill I just found your Masterbatch guide. Wonderful !! I made some pictures of the filament and recorded an extrusion. This is my extruder in action. The cracking sound of the pellets is nasty... This is the result of around 30 minutes extruding. Extrusion temp. around 270-280°C Extrusion temp. around 270-280°C Here you can see that the pellets are hollowed. May this cause tby Xabbax - Plastic Extruder Working Group
Quoteianmcmill Thanks for the pictures Xabbax ! But I wonder what parts you used in picture F and G. And how did you fasten the nut on the motor shaft. Is this a square nut that connects the axis to the nut (from picture E) ?? I put a hex-nut onto the motorshaft and drilled a hole between the thread of the nut and shaft and put a 2mm steal bolt into it so that it doesn't loosen while driving thby Xabbax - Plastic Extruder Working Group
QuoteShawnT98027 IMHO I think Slic3r developers, at this time need to put a halt to Slic3r as it is known, take what they have learned and create a ground-up new version, and stop patching/upgrading the garbage. Personally I think they try to fix a bug, and then create 10 more bugs from the bug they fixed. I appreciate their endeavors, but the world does not need another Microsoft Vista. .by Xabbax - Slic3r
QuoteSublime Quotejcabrer Repetier Firmware supports multiple extruders. Have a look at Panucatt Devices line of controllers. They are in communication with the Kraken guys about getting these things working out in the wider 3D hobby printing world. They only have a couple of the new boards in stock right now. I just went through Repetiers config file and it only has settings for two extrudeby Xabbax - General
I use it to insulate the hotend and to keep the thermistor and heater element inside the heater block. I am printing at 260 degrees C and thus far no problems.by Xabbax - General
An alternative - wrap the filament around the drive gear for better grip Drive gear with a 1mm groove cut with a dremel ( )by Xabbax - General
There are 6 slots for steppers on the Rumba board - You will also need stepper drivers - A4988 Pololu or DRV 8825 Designed by Kliment Pololu compatible driversby Xabbax - Developers
Quotesdavi The menu system is very flexible and easy to modify. You will need to edit uimenu.h which has some instructions in it. You can choose to modify the current "page3" and add the 3rd extruder line or even add a new page, look at the top of the file there is a lot of information you can potentially display. In UIMenu.h you will need to scroll down to around line 178 (in my v0.91) which loby Xabbax - Repetier
This issue sorted out In the uimenu.h replaced the following line #define UI_MENU_EXTCOND &ui_menu_ext_temp0,&ui_menu_ext_temp1,&ui_menu_ext_temp2,&ui_menu_ext_off0,&ui_menu_ext_off1,&ui_menu_ext_off2, &ui_menu_ext_sel0,&ui_menu_ext_sel1,&ui_menu_ext_sel1, with #define UI_MENU_EXTCOND &ui_menu_ext_temp0,&ui_menu_ext_temp1,&ui_menu_ext_temp2,&by Xabbax - Repetier
I use Braided Fiberglass Sleeving Impregnated With Silicone - one on each wire - must be the silicone impregnated tubes - not other plasticsby Xabbax - General
Still a few small things to sort out but will most certainly post some pictures in the next week or two. I received so much from this forum and it will be a pleasure to share some ideas.by Xabbax - Repetier
Thank you Repetier for the hard work and quick response to queries. I got my first prints from the hotend with the 3 colour feeder and one heaterblock. From the software side I still need to get the smartcontroller problem sorted but it is running direct from Repetier Host without problems.by Xabbax - Repetier
@sdavi - Thank you for the help. Will try and get it to work - if not will certainly get back here. It is not so easy if you do not work with code on a regular basis.by Xabbax - Repetier
Thank you for the quick response. Although I can help myself to a certain extend with programming I am at mercy here for someone with greater knowledge to help me here. Will the sellers of the smartcontrollers please help out!!!!!!!!!!!!!!!!!!!!!!!!by Xabbax - Repetier
I attached the configuration.h and pins.h files if that can help.by Xabbax - Repetier
Thank you for the wonderfull piece of software that you share with us. I am using Repetier-Firmware configuration tool for version 0.91 Rev 4 and the latest Repetier host software V0.95E on a delta printer (with RUMBA board). I want to run 3 extruders(filamentfeeders) into one heaterblok with one nozzle. In the pins.h file I changed the HEATER_2_PIN and HEATER_3 _PIN to HEATER_0_PIN value ofby Xabbax - Repetier
Quoteumkulo I am Herman le Roux, from George. I have been looking at 3D printing for quit some time now, and decided to get into this. I have studied the RepRap wiki, and like the Prusa. I will appreciate any advise, and words of wisdom or caution. Looking forward to make a contribution. You can build a delta printer with the minimum of printed parts and then print your own parts once operationaby Xabbax - South Africa, Cape Town RepRap User Group
Some perspective on thisby Xabbax - General
The main problem is to remove the heat in the stainless tube 2 mm from the heater block - not a lot of heat in the tube itself to remove. You only need about 2 mm exposure of the tube to some heatsink to remove the heat from the tube but the problem is to find a suitable way to do it so close to the heat source.by Xabbax - General
It is just a little bit easier to implement water cooling on a delta printer than aircooling especially if you go dual or more extruders.by Xabbax - General
The reason for using water instead of air for cooling is the higher heat carrying capacity(Thermal Conductivity) and the Specific Heat Capacity of water compared to air that can be utilized at a very small section where you want to remove the heat. Heatpipe (http://en.wikipedia.org/wiki/Heat_pipe) will be better but not so easy to implement.by Xabbax - General
#define MAX_FEEDRATE_X 300 #define MAX_FEEDRATE_Y 300 #define MAX_FEEDRATE_Z 2 #define HOMING_FEEDRATE_X 300 #define HOMING_FEEDRATE_Y 300 #define HOMING_FEEDRATE_Z 2 change to #define MAX_FEEDRATE_X 300 #define MAX_FEEDRATE_Y 300 #define MAX_FEEDRATE_Z 300 #define HOMING_FEEDRATE_X 80 #define HOMING_FEEDRATE_Y 80 #define HOMING_FEEDRATE_Z 80by Xabbax - Reprappers
Quoteaduy have you noticed any corrosion yet? On the outside yes. The colour turned to a more dark copper but the outside corrosion should not be a problem. The threaded part is protected by a high temperature copper compound (http://www.spanjaard.biz/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=833&virtuemart_category_id=1) so no worries there. Corrosionby Xabbax - General
I am currently using a water cooled copper hotend with a brass tip. After reading about the concerns about corrosion of the copper I wondered if one can electroplate the hotend to stop corrosion. What do you think will be the best to coat it with - silver and zinc comes to mind - silver may be the better one for thermal conductivity. Is it chemically possible?by Xabbax - General
Quotepourcirm Have you run this through a printer yet? I'd be curious to know how well it goes through the hotend and what the finish and strength of the parts printer with it are. Yes, on a daily basis with this hotend -. Printing at temperatures ranging from 245 to 260 degrees C depending on the what I want to do with the print. Structural printer parts where I do not want any delamination Iby Xabbax - Plastic Extruder Working Group
QuoteReplace @ xabbax great thanks. it works :-) I will redesign my spaceship with your module ! Thomas I got it from the regular_shapes.scad file - lots more modules there * OpenSCAD Shapes Library (www.openscad.org) * Copyright (C) 2010-2011 Giles Bathgate, Elmo Mäntynenby Xabbax - OpenSCAD