Mini Kossel Filament: 1.75 mm PLA Hotend: E3D V6, 0.4 mm nozzle Slic3r 1.1.7 in Debian Wheezy Linux Layer height: 0.3 mm Simple object like below I can remove the spider webs easily. Overall printing quality is good. But when printing hair-like object the Printer shows tiny spider webs. It's kind of annoying. I have no idea how to clean it. Thanks in advance, Hugheby janpenguin - Printing
Now I know how Brim works.by janpenguin - General
I started designing the printed parts for 2020 Aluminium extrusion. Upper endstop that mounts the switch. This one hardly develops side play or movement. Lower endstop Endstop comparison - Original 1515 one vs mine Look at the size difference.by janpenguin - Delta Machines
I like to test three point effector that three diagonal rods are connected. Three points form a perfect plane in geometry. I had this idea few weeks ago and was contemplating it. I found one 3D Printer company that uses three point effector with six diagonal rods yesterday. Three Sphere System (TSS) of Regards, Hugheby janpenguin - Delta Machines
It's better to modify the 3D model than using the support material IMHO. The right hand arm fell apart from the support pillar. Small, complex model like this dome, to remove all the support material takes time, leave unwanted pieces inside. Regards, Hugheby janpenguin - General
In my case lose endstops at the top caused printing problem for a while. Calibrations need to be done properly: Stepper motor current calibration Center of bed, the Z height Leveling the bed Dimensional calibration Extruder feed rate Temperature calibration for the filament type, i.e. 1.75 mm PLA Flow rate Enclosure improves the printing quality greatly too.by janpenguin - Delta Machines
Have you done temperature calibration for the ABS filament? It takes less than one hour. I found 190 - 200 degrees Celsius is the sweet spot for the 1.75mm PLA filament I use. I learned that to have good quality printing, flow rate and feed rate of the extruder need to be done, and printing speed per model.by janpenguin - Delta Machines
@Paul I found M5 bolts and nuts are the right fastener for 2020 Aluminium extrusion. But it turned out except the six vertex frames, I would have to rethread all other printed parts for 1515 Aluminium extrusion. My Kossel Mini has 9 pairs of M5 bolt and nut for six vertex frames. I used M3 cap/philips screws and T slots for other parts to save time. Here is the latest picture of the 3D Printby janpenguin - Delta Machines
I think it's an incandescent bulb.by janpenguin - Look what I made!
Hi, I like to share an experimental warm air blower for Mini Kossel. Instead installing heating device on the aluminium print bed, I decided to build a warm air blower. 60W light bulb produces around 165 Celsius degrees heat. Blowing wind to it creates warm air. It maintains the aluminium bed above 30 Celsius degrees. Parts: Cardboard 60W light bulb Light bulb driver - holder, switch, power coby janpenguin - Look what I made!
Hi, This is my first Reprap 3D Printer, Mini Kossel. It's almost done and I'll organize all loose wires and make it a finished machine. I'll print a plastic case for the controller unit, and build 12 cm height of base that houses the modified ATX PSU. I was going to install the controller unit on top of the frame but two stepper motor's wires were too short. I disliked spending few hours juby janpenguin - Controllers
Thanks. I'll try it again later.by janpenguin - Repetier
Hi, Yesterday I got forced to install Marlin instead Repetier due to the following compile errors in Arduino IDE. In file included from HAL.h:77:0, from Repetier.h:264, from Eeprom.cpp:24: fastio.h:27:32: error: pasting "DIO" and "-" does not give a valid preprocessing tok en #define _READ(IO) ((bool)(DIO ## IO ## _RPORT & MASK(DIO ## IO ## _PIN)))by janpenguin - Repetier
I uploaded Marlin Blomker version and performed basic function tests before the real calibration today. - Homing the nozzle - Status of four endstops - Temperature control of E3D V6 Hotend - Cooling fan control of the board I gonna print out cases for RAMPS 1.4 controller, LCD controller, modified ATX PSU, some other parts then organize loose wires.by janpenguin - Delta Machines
I finished calibrating four NEMA 17 stepper motors few days ago after uploading a test code to the Arduino Mega. It's ready to rock.by janpenguin - Delta Machines
Definitely!by janpenguin - Delta Machines
It seems how to design fail safe device is sacred knowledge in electronics field. There is well known phrase "You get what you pay for!" In ideal situation every builder can afford decent components that have proven reliability. But in reality especially hobbyist, tinkerer who do electronics as second activity, money is always an obstacle. Every time I decide to build something, I spend good tby janpenguin - Developers
I modified the Bench power supply I built before instead working on the previous one. Four modifications I made which mentioned on the wiki document() - 50 ohm resistor between Green wire and ground wire that acts as power switch* - Shorted one pair of +3.3V wires* - external fuse holder (5x20) - 1A load on +5V rail (*: ) What a mess! It was the level of my workmanship in electronics twby janpenguin - Controllers
Quotedc42 2. The trouble with using auto bulbs as loads is that they take a very high surge current when you first turn them on. It may be this surge current that is tripping the PSU. I had to agree with you. I did another load test on the ATX Bench power supply I converted two years ago. It has +3.3V@13A, +5V@15, +12V1@20A, [email protected], +5VSB@2A, power rating is 450W. When I connected 55W light buby janpenguin - Controllers
There was little progress. I had an advice from few members in the Reprap irc chat which was to install a load in positive 5V rail. So I installed two 10 ohm 10W resisters in parallel to the positive 5V rail. The PSU was providing two volts higher than previous test: 10W resistor gave 12.18V, 55W light bulb gave 12.01V (previous value was 10.09V). It lighted up two the 55W light bulb in series bby janpenguin - Controllers
I hooked up 10W 10 ohm resistor, 55W 12V headlight bulb, and two 55W 12V headlight bulbs in parallel to check voltage and current. Measurement of voltage and current of each load: 10W 10 ohm resistor, 11.58V, 1.17A 55W 12V headlight bulb, 10.09V, 3.75A 2x 55W 12V headlight bulb in parallel, the PSU went dead without blowing fuse. When I turned on the PSU, the fan gave a jerk motion then nothing hby janpenguin - Controllers
Hi, I just converted cheap 450W ATX power supply to 12V one for RAMPS 1.4 controller. The current output of this unit is total +12V@30A (+12V1@14A, +12V2@16A). I merged all +12V wires into single wire, almost same thickness of car battery cable, and attached two AWG 16 wires for two +12V output. I installed 15A blade fuse on the 12V side. The voltage output of the 12V wires were around 12.by janpenguin - Controllers
It's so *happy* to me that using zip ties to mount the extruder motor assembly. The original creator had to have good reason to do it instead printed mounting plate that uses bolts and nuts. ADMIN Edit: Offensive language will not be tolerated. Consider this a warning.by janpenguin - Delta Machines
Money I spent for the Kossel Mini is around $400 USD. A set of 2020 Aluminium extrusion - $10 from a local manufacturer. Printed parts - $70 from ebay seller and Reprap user RAMPS 1.4 kit - $35 from Aliexpress Mechanical parts - $158 from TriDPrinting.com Three sets of linear rail - $150 from a local company Fasteners - around $20, T nuts are few times expensive than regular nuts. Partsby janpenguin - Delta Machines
이 포럼에 정보도 얻고 도움을 받을려고 두달 전에 가입을 했는데 맨땅에 머리치기 해왔습니다. 알루미늄 프로파일은 (Aluminium Extrusion) 20 mm x 20 mm를 국내 업체에서 구입했습니다. 처음에 $300 정도에서 Kossel Mini를 만들 수 있을 것 같아서 시작했는데, 선형 이동 장치 (Linear movement)에 리니어 레일 구입으로 40만원 정도 들어갔습니다. 다 만들고 켈리브레이션 끝나 PLA로 물체 찍기 시작하는데로 정리해서 제작 과정 처음부터 끝까지, 비용과 구입처 정보 모두 올리지요.by janpenguin - Korea RepRap User Group
by janpenguin - Delta Machines
That looks fantastic. I want to experience the Kossel Mini's 0.03 mm printing accuracy also!by janpenguin - Delta Machines
My alternative linear rail device turned out questionable after two weeks of spending and cost of $40 dollars. I designed a L bracket that serves as the carriage and linear block that moves along 2020 aluminium extrusion, ordered three parts from a manufacturer. The quality wasn't up to my expectation, 0.1 mm of thickness difference. Anyway I let the machine shop make four threaded holes andby janpenguin - Delta Machines
Hi, I made simple vibration damper for NEMA 17 stepper motors out of rubber sheet. Hardware store that sells 300 mm x 300 mm rubber sheet. It only costed around $5 (5,000 KRW) and Vernier caliper, utility knife, scissor, compass, straight, a pencil and thick paper piece. The thickness of vibration damper is 1.0 mm. Making the damper template Three vibration dampersby janpenguin - Mechanics
I made simple vibration damper for NEMA 17 stepper motors out of 1 mm thickness of rubber plate. I used four M3x10 cap screws instead M3x8. Checking the squareness of the base assembly Checking alignment of the base and top assembly Any parts that are mounted on the aluminium extrusion needs M5 cap screw and M5 nut or T nut and Mx bolt combination.by janpenguin - Delta Machines