Here is what I found about the problem of normal extruder out of curiosity. Solutions Ninjaflex! Printing flexible filament with Gregs/Wades extruder!by janpenguin - Fisher
One or two days after hours of printing, the Z height increases 0.2 to 0.3 mm. To have good first layer, I manually increase Z height before printing a model. Yesterday the Z height was 172.37, today at Z 0, the nozzle failed to grab a test paper. The nozzle was -0.3 mm off on the print bed. Thanks in advance.by janpenguin - Delta Machines
What firmware do you use? In Marlin there is M92 gcode that modifies E steps of all stepper motors on the fly. Here is my E steps setting. echo: M92 X100.00 Y100.00 Z100.00 E450.67 I increase or decrease E###.## by 0.2% to 0.5% when I calibrate the flow rate of new filament. For instance, if E450.67 gives little over extrusion, I subtract 2.25 (0.5% of 450.67) to make it 448.42 in middle oby janpenguin - Delta Machines
While in printing the extrude moves alot, which is fun to watch. But strangely printing results so far are quite amazing beyond my wildest imagination. I reduce the Bowden tube's length and see how it would affect printing quality. Loaded /home/penguin/Wsp/3D_Printer/gcode_files/loubie_adalinda_dragon_eSun_PLA.gcode, 545837 lines 14597.81mm of filament used in this print The print goes: - fromby janpenguin - Delta Machines
@repetier I set the value to 5 and it read thermistor temperature. But the temperature was off 100C. #define EXT0_TEMPSENSOR_TYPE 5 // 97 #define NUM_TEMPS_USERTHERMISTOR0 35 // 28 #define USER_THERMISTORTABLE0 {\ {51*4, 260*8},\ {52*4, 250*8},\ {62*4, 240*8},\ {76*4, 230*8},\ {81*4, 225*8},\ {92*4, 220*8},\ {97*4, 215*8},\ {116*4, 210*8},\ {119*4, 205*8},\ {134*4, 200*8},\ {14by janpenguin - Repetier
Repetier doesn't use the temperature table I made. Temperature reading is off 25C to 30C. When the room temperature is 25C, it reads 46C to 47C. Are there any codes that I need to modify? /* This file is optimized for version 0.92 generator: */ #define PID_CONTROL_RANGE 20 #define SKIP_M109_IF_WITHIN 2 #define SCALE_PID_TO_MAX 0 #define TEMP_HYSTERESIS 0 #define EXTRUDE_MAXLENGTH 160by janpenguin - Repetier
Kudos to the OP and other members! Here is mine. Two pulleys support the 480 g of counter weight. The extruder weighs 427.6 g. Nema 17 geared motor was heavier than I thought. I made the PTFE tube's length to 15 cm. Printing a 3D bench ship model. Layer height: 0.25 mm Second test printing, two Marvins. Layer height: 0.25 mmby janpenguin - Delta Machines
One simple hack I would recommend is heater block insulation. Ceramic tape is right material. I applied left-over plaster and cloths over the heater block, cured it one night. Yesterday I sprayed a coat made out of polyurethane on it to prevent falling of plaster particles. For the past few days I've been pumped up by huge improvement printing quality of Bulbul Junior. I gave up fine tuning ofby janpenguin - Delta Machines
Those models look great.by janpenguin - Fisher
It's one of the best hacks I ever done. I hadn't figured out how to stabilize the temperature within five degrees. Five degrees usually creates different zones. I use E3D V6 Hotend. Long story to short the exposed lead of thermistor was rubbing heater block on and off, which triggered temperature errors while in printing. I compared resistance of the thermistor with unused one. The measuremenby janpenguin - Reprappers
Do you mean like this? It provides breeze of air around the nozzle tip, good enough to cool down PLA fast. It makes big difference in printing quality This one delivers many times stronger air flow than above two setups.by janpenguin - Delta Machines
Hi, It was first time of laser cutting steel and aluminum plates. I gave DXF files to a local laser cutting company which had a big industrial laser cutter. The technician told me that accuracy range is around 0.1 mm and the quote was reasonable so I went ahead supplying 5 mm and 4 mm aluminum plates. Steel parts came out near perfection which was beyond my expectation - laser sharp, clean edgesby janpenguin - Laser Cutter Working Group
I named it as Bulbul Junior. Laser cut aluminum plate, 5 mm thickness. It weighs 159 g. Printing fan duct for 30x30x10 mm fan came with E3D V6 hotend. 40x40x10 mm fan didn't have enough clearance so I had to work around.by janpenguin - Delta Machines
I experienced jamming of filament in Fisher yesterday after relocating the extruder with longer Bowden tube. Whenever the pushing force of extruder becomes weaker than resistance force inside the Bowden tube during printing, the hobbed gear start grinding the filament as you see below. No more advancement of filament. The tip of filament inside heat sink is expanded due to the heat. It preventby janpenguin - Fisher
@sungod3k To me it seems positional error of stepper motors. I learned that serious 3D Printer builders don't use cheap stepper motors. They use quality stepper motors either Made in Japan or Germany, the price is tag is high though.by janpenguin - Delta Machines
I uploaded the modified DXF files for laser cut.by janpenguin - Fisher
Metal Fisher. I spent good hours to cleaning up and reaming all the holes of metal parts. Aluminum seemed not to have clean edge by laser cut and there were outstanding dimension inaccuracy around 0.1 mm to 0.2 mm. I spent several hours on the effector plates alone. Things to do: - Relocate the extruder to outside of panel - Replace diagonal arms with rod end bearings and carbon or aluminuby janpenguin - Fisher
Hi, Last year when I was testing Fisher, I found it would be impossible to do continuous printing when filament is running out. When the tension is weak, extruder fails to push the filament, it produces filament starvation. I had spend many hours to troubleshoot weird retraction problem in my Kossel Mini for months without knowing the design flaw of the extruder. Pushing requires more force thby janpenguin - Fisher
There are two pins that are located in far right side of the expansion pins. It supplies 5V DC. Pin 1 is +5V, Pin 2 is ground. Backside of the board has all the pin information. Last two pins near the board mounting hole at bottom right corner.by janpenguin - Fisher
@AlexY Yours look great. Have you thought about using square metal brakets to join aluminium profiles? There are L-shape and triangle-shape.by janpenguin - CoreXY Machines
Thanks. Ferrite core Ferrite beadsby janpenguin - General
I coated aluminum and steel parts two weeks ago. Coating cost was $12 through business account. I chose color yellow for aluminium parts but the company told me gold is available. So I chose gold. One day after when I got them back, as you see in the below aluminum parts were all orange. The company thinks gold as orange which is funny. Laser cut quality of aluminium parts was below my expecby janpenguin - Fisher
Thanks guys. Is this the 5V output pin that I can connect a 5V fan? I could see clearly on the board yesterday.by janpenguin - Fisher
I learned a little secret of retraction. This applies to all types of extruder. The extruder requires enough tension to push filament between hobbed gear and bearing. If it's not strong enough to overcome the pressure during heavy retraction, layer skipping would occur, eventually failed printing. Small models suffer the most. Failed print No retraction After the adjustment of lever teby janpenguin - Fisher
I disassembled Fisher and quick fitting test of frame parts: panels, base plate and print bed.by janpenguin - Fisher
Duet v0.6 Wiring diagram on Duet Wiki Does this diagram is right one for the Duet board on Fisher? I see there are two 5V pins. Can I connect a 5V fan to one of them?by janpenguin - Fisher
OpenSCAD's DXF export removes basic geometry data that CAD program requires. I had to run a CAD program to modify the original DXF files for aluminum and steel parts. Base plate, Steel, 5 mm (thickness) Top plate, Steel, 5 mm, it has big triangular access hole in the middle. Front panels, Steel, 3 mm, one panel has ventilation and mount holes for 40x40x10 fan Side panel, Steel, 3 mm Rods x12,by janpenguin - Fisher
Hi, I made simple polygon generator that has equal sides. Equilateral triangle is a isogonal whose number of sides is three. I have been using it often. /* isogonal.scad + /|\ /o| \ r / |y \ / | \ +----+----+ | x | |<-- l -->| */ module isogonal(length, number) { angle = 360 / number; theta = angle / 2; x = length / 2; rby janpenguin - OpenSCAD
@dipenjungi Run M501 that shows all the Gcode commands that store values in EEPROM. If it doesn't show M666 in the list, you need to install Marlin firmware that supports M666. >>> M501 SENDING:M501 echotored settings retrieved echoteps per unit: echo: M92 X100.00 Y100.00 Z100.00 E443.09 echo:Maximum feedrates (mm/s): echo: M203 X200.00 Y200.00 Z200.00 E200.00 echo:Maximum Acceleraby janpenguin - Delta Machines