OK, danke. Ja, ich habe das verwechselt. Es sind beides Nema 17 Motoren.by Dahah - Extruder, Hotends & verschiedene Materialien
Hallo, ich will meinen Extrudermotor ersetzen. Ich habe ein 24V CXY-v6 Chitu Board mit einem A498 Treiber für den Extruder. Aktuell läuft ein Standard Nema 42 Motor von Tronxy. Ich will den Motor mit einem Pamoco Serie P42 2H 5 A ersetzen. Der Pamoco Motor ist an einem Clay-Extruder montiert. Das Datenblatt vom Motor gibt es hier als pdf (Seite 12): Kann ich den Motor einfach an das E-Motoby Dahah - Extruder, Hotends & verschiedene Materialien
Ok, thanks. I checked the microstepping in configuration_adv.h and it's 1/16. I checked the Tronxy config as well. 1 Microstep = 0.0127 mm. 1mm/0.0127 = 78.7401 steps/mm I flashed again with steps/mm= 80,80,400,389 and it works.by Dahah - Firmware - Marlin
Hi. I installed Marlin from the GitHub Tronxy Tree on my TRONXY X5SA Pro 500. I uncomment the right printer in the firmware. I changed the number of Z-motors in the configuration.adv from 1 to 2 and all the motors move now. I changed the x (125) and y (125) home position because the printer was hitting the rear-right corner hardly. Homing works now near by the middle of the bed. Strangely whenby Dahah - Firmware - Marlin
Hi, I have the same problem. Just one Z-Motor is running. Did you find a solution?by Dahah - Firmware - Marlin
@Tobben Just reading the blog. Everything looks so promising!by Dahah - Hangprinter
Merci! I'll try to generate g-code directly from my grasshopper patches and feed it to the hangprinter. By the way....Is there an UI for OpenSCAD like the grasshopper UI (https://www.grasshopper3d.com/)by Dahah - Hangprinter
I generate my 3D models via Rhino/Grasshopper. This software is not available for Linux and it is very time consuming to switch between the Linux and Win installation. I am using the HAW usb stick right now. I have no interest in running Rhino/Grasshopper and/or the hangprinter on a virtual system. Does anyone run the hangprinter on Win10? If I would use Prontrface on Win10, what do I have to chby Dahah - Hangprinter
I want to experiment with clay extrusion. Is it possible to run the hangprinter without heater and thermistor?by Dahah - Hangprinter
I am interested in printing on rotary surfaces as well. I opened a thread some month ago. Can you post some pictures of your machine and prints? Here are two approaches I found: This one uses a mendel: This one uses a Hyrel printer:by Dahah - Slic3r
PS: You should dive in! It is a very nice machine.by Dahah - Hangprinter
@Holski77 Welcome to the endless adventures of building RepRap machines I do not know any Hangprinter using O-Drives so far. But in my opinion it is a good solution, but more expensive than Mechaduinos. With O-Drives one can use very cheap but good and powerful motors from the mass market (e.g. hoverboard hub motors). I would love to see someone using O-Drives with the hangprinter. But I wouldby Dahah - Hangprinter
Just for information: I am still working on the prototype. Could not find enough time in the last weeks. October will be less stressy and I am shure I can share results soon.by Dahah - Hangprinter
If the cable gets just friction from the gears teeth and doesn't bend in zigzag pattern it acts like a round spool with less contact area. An alternative could be a wave-like pattern and simular rubber wheels. I mean an extruded rounded star (extremly rounded) or a rounded gear and one or more rounded star shape rubber wheels that hit the cable in the valleys (inner points of the star.) If the cby Dahah - Hangprinter
Just a quick idea in memory of a hangprinter failure: Cables clocked in gears. What if we use gears instaed of a round constant effective radius spool and rubber wheels? Of course this would stress the cable incredible hard. Would gears provide enough friction? Maybe rubber coated gears?by Dahah - Hangprinter
Very good lecture. Thanks for the link! Grooved or ungrooved cylindrical spools and idler positions that enable line walk seem too complicated and the compact top plate is such a good feature of the hangprinterV3 design. I will keep in mind that cylindrical spools are a very good way to have a constant effective radius. I will make a prototype of the constant effective radius spool v4 for the 0.by Dahah - Hangprinter
From Vitana: Some flex comes from line modulus, but adding infinitely stiff lines alone won't solve our problems because ceilings, floors, ceiling unit sheets and plastic parts also flex. Very stiff lines are also thick, building more on the spools and making the imperfection of our buildup compensation more severe Is it easier to use a thicker line to clamp/rubber wheel it on the constant effecby Dahah - Hangprinter
Obstacles, Tripping In Lines and Other Unexpected Forces Sounds good! How often do those collisions happen? Why does it hit so hard? Whats the reason for the wrong nozzle position?by Dahah - Hangprinter
This is just a quick concept drawing. If one would use tubular spools and move the idlers very far away the effective radius would be guaranteed, if the angle is right. No compact top plate! Maybe with aluminium or carbon rods one can build a sun shaped top plate with the D spool in the middle. But it would be huge in xy size. Or loose idlers on the sealing: Difficult to measure....by Dahah - Hangprinter
" Also see this comment about keeping a constant torque on one axis". Klipper seems very promising. Will the Raspberry perform well enough for complex code of a tension based hangprinter? Better than Arduino for shure, but maybe one should think of something like the UP squared ( ). That could keep everything in place. No additional PC for sim etc. in the best case? Like a HAW hardware + prinby Dahah - Hangprinter
What if the effective spool would have a spiral shape? The friction would be much higher by the longer distance.by Dahah - Hangprinter
One quick thought.... "Upon second thought, we could just use a simple rule, like "tighten all axes by an equal amount until we have the tension we want in all lines". We could use the equations in the linked blog post to calculate the wanted tensions. The simple rule would compensate an unknown error with a known error. This would be ok. It would give us a confidence interval for accuracy andby Dahah - Hangprinter
"Slack line can run across a load cell undetected" Could this be solved by weights? The line would never get totally slack, because weights are pulling and tighten the line?by Dahah - Hangprinter
"The motors already control line length (they can't easily be made to also control line tension at the same time I think)." In another cable driven robot (8 cables) the motors control line tension. Position, speed and velocity are controlled by calculation. The system senses the line tension of each line at the end effector. The motors are encoded to read out line length as a feedback loop. Eachby Dahah - Hangprinter
"With a long section of contact between line and effective spool, it might be possible to get large enough friction." "Can you elaborate on how E and G in the first drawing would clamp the line?" To multiply the contact area of the line and the spool I used the second effective spool and the idler in the first drawing. I hoped that if there is always friction on the line between both effective sby Dahah - Hangprinter
"Maybe the second sketch could be made to work if the effective spool had a sand paper surface, and/or two rubber wheels to pinch the line onto the spool? We're essentially trying to make the dyneema behave line a roller chain. With a long section of contact between line and effective spool, it might be possible to get large enough friction."by Dahah - Hangprinter
Of course the mechanism should be the other way around -hanging from the sealing. Then the weight would pull in the opposite direction.by Dahah - Hangprinter
Just a note: The second effective spool (E) and the idler (G) in the first drawing where ment to clamp the string between those two. If you could measure the force of the string between (E) and the Mover and the force between (G) and (D) while clamping it in one could manually adjust the line tension. Could maybe work without (G) and (D), too? Are there too many sensors? What Do you think ofby Dahah - Hangprinter