Can you share your method please? I have some errors in my printer that I suspect might be caused by tower tilt, but I'm not sure. How do you know that the measured error is due to tower tilt? And then how do you input the tilt into (e.g.) Repetier to correct it? FWIW, I have a Java app which uses a genetic algorithm to minimise delta errors. So far it only uses tower angles, diagonal rod lengtby frankvdh - Delta Machines
Is your slicer set to auto-scale objects to fit the bed? You should be able to see in your slicer the size of objects. Do they look right there?by frankvdh - General
If temperature swings are a problem, try some insulation. That should reduce the rate of change, so your heaters might be able to keep up. Polystyrene or a couple of layers of cardboard underneath should help the heated bed. Or maybe you need a better power supply, especially if the heated bed is large. A 7Ah battery might last less than an hour. Also check the wires and connectors, especially toby frankvdh - General
... and, the day after the replacement board arrives, you'll put them both in the box and put it away again.by frankvdh - General
Your country list only seems to reach H ???by frankvdh - General
How sure are you that it is the sensor itself that's failing, and not broken wires? How well are the wires secured? The wires in those sensors seem to be very thin and weak, so susceprible to metal fatigue through repeated flexing. You need to secure the wire to the hotend/carriage and then feed them in with the rest of your hotend wires as a bundle.by frankvdh - General
I think the hype is a distraction from the real concept. I'm guessing that the law isn't aimed at FDM-printed Liberators, but at preventing the dissemination of gun designs for CNC-machining or metal deposition 3D-printing? Of course, this *is* good news for firearms companies; I can't buy a Binfords 2000 (or Baofeng or Wei Chan) CNC mill and set up shop to put Colt out of business. And it's gooby frankvdh - General
What @jdargot said. Plus... Any time-related problem usually has heat-creep as the root cause. It could be stepper drivers getting hot, the extruder motor getting hot, or it could be heat creep in the hotend. Try the finger test on the stepper drivers (especially the extruder driver) and the extruder motor. If all's well, you should be able to hold your finger on them without getting burnt. Ifby frankvdh - General
Print with a brim to improve adhesion.by frankvdh - General
QuoteTinchus Quotefrankvdh Sounded good, so I thought I'd give it a try. Bizarrely, it appears that it only knows 3 kinds of firmware: 3D Systems, 5D Relative E, and 5D Absolute E ("most common"). Or maybe the list scroller/selector thing is broken. Either way, deleted it again. Well, yes, as I said, it lacks of "common" features present in other slicers. That's a huge understatement. This isby frankvdh - General
Sounded good, so I thought I'd give it a try. Bizarrely, it appears that it only knows 3 kinds of firmware: 3D Systems, 5D Relative E, and 5D Absolute E ("most common"). Or maybe the list scroller/selector thing is broken. Either way, deleted it again.by frankvdh - General
I recently went there too. It downloaded a file called stls.zip into my default Downloads directory. However, the downloaded file was no use to me; it didn't contain a valid STL, just 2 triangles. To be fair, I'd asked for a download of Ross Island in the Antarctic, which was always going to be difficult to get. The project's issues site has similar complaints about lack of coverage.by frankvdh - General
Can you give us an idea of what "soon" means? A day? Week? Month? I've been checking KS daily since I saw your first post!by frankvdh - Delta Machines
QuoteM_Xeno Shameless self-promotion: so use Zatsit's polypropylene hinged system, which is ultra-light, extremely accurate without any adjustment, and performs very well against ringing. Right... so when/where can I get it?by frankvdh - Delta Machines
Sorry, I can 't help you directly. But maybe what you're seeing is a version of a problem I'm trying to fix on my delta. For me, the output is distorted... in the Y direction the dimension is perfect, but in the direction opposite the X tower (i.e. at 30 degrees to the X-axis) it only 95%. I'd thought I could correct this by scaling up by 5% in the X axis and rotating 30 degrees, which ought to gby frankvdh - Delta Machines
QuoteMarkG Hi the_digital_dentist, I do notice that the circle is round as long as the print continues in the same direction. When it reverses direction the pattern shifts 45 degrees in the +/-X +/-Y direction. for a total offset of about 1mm. This really does say to me that there probably is play in your mechanism. A couple of thoughts; how are your belts tensioned? If done with springs, thatby frankvdh - Reprappers
Depending on what the slicer does, changing the orientation of an object may change the path of the nozzle, and therefore where any backlash errors appear. If you use auto-leveling and your bed is very out of level, backlash in the Z axis can manifest itself in X or Y axis errors, depending on the path of the nozzle.by frankvdh - Reprappers
QuoteDust Quoteo_lampe Is that the same comment you made, when 1.75mm filament replaced 3mm? This never happened. Plenty of 3mm machines still out there. Working just as well as the 1.75 machines. Eg Ultimaker Quotefrankvdh Better too many standards than one wrong standard. How is this relevant, are you trying to imply that 3 mm or 1.75 are wrong? Yes... if experiments show that 0.8mm is rigby frankvdh - Plastic Extruder Working Group
QuoteDust just what we need, another standard.... Better too many standards than one wrong standard.by frankvdh - Plastic Extruder Working Group
Glues are nowadays used in aircraft manufacture to permanently bond aluminium parts together. Sorry, I don't know exactly what is actually used. But in general terms the big issue with glueing aluminium is the thin surface layer of oxide that forms very quickly... you don't want the glue to adhere to the oxide which then lets go of the metal. If I was going to glue aluminium, I'd roughen the surfby frankvdh - Mechanics
I've bought lots from AliExpress, mostly with good outcomes. What seems to happen reasonably often is that tracking of shipments gets screwed up. I think that (unless you pay horrendous shipping costs via FedEx or similar) many shipments get aggregated and shipped together, sometimes via a 3rd-party aggregator who you know nothing about, and sometimes also via a 3rd country (e.g. Singapore or Maby frankvdh - Reprappers
Hi all, In the never-ending search for perfect printing, I've taken @dc42's Delta Calibration wizard code from his Escher3D site, and translated it into Java. I did this because I couldn't understand why it was giving strange answers , and I thought I could perhaps debug it. (Turns out I'd misunderstood what the outputs meant). Then I had a brainwave! and linked in a serial port library, so the pby frankvdh - Developers
Maybe also a power supply issue... if the power supply is a bit weak, all the power goes to the heater and none to the processor, which then stops, which turns off the heater, and the processor then starts up again. A heater cartridge is about 40W, say 3.5A @12V. Fans and processor and stuff need another amp or so. So you need a power supply that's good for a minimum of 5A, preferably a bit moreby frankvdh - Printing
Regarding the Escher3d calculator... I've just discovered that, for Repetier, it shows the endstop values in steps, not mm. To be fair, this is pointed out in point 2 of the "How to use the calculator" instructions. So my values of 273 and 300 correspond to a much more reasonable 3.4 and 3.75mm. Now going to read the rest of the instructions...by frankvdh - Delta Machines
What type of printer is this? Do you have bed-levelling enabled? Can you share the Gcode file?by frankvdh - Printing
Quoteo_lampe I made a new adapter which holds the hotend below the alu-effector. Now the Bowden tube has no lever to twist the effector off the rods. Wonder whether a flying extruder would be good with this?by frankvdh - Delta Machines
Hi all, I've been struggling with this for a while, and not making any progress, so getting really frustrated. Below are a couple of photos of a calibration object I'm printing; Firstly, I have a "ridge" along the Y axis... you can see how thin the print is at the X extremes in the first image. Secondly, the object *should* be circular with a diameter of 100mm, but it is only about 95mm acrossby frankvdh - Delta Machines
A spring-loaded belt tensioner is IMHO a bad thing. It essentially allows play in the mechanism. If you're accelerating the bed, the spring will compress/expand so that the motion of the bed won't correspond exactly to the motion of the stepper. A screw-adjusted tensioner is much better. The effect of any play in the mechanism on your output will also depend on what motion your slicer generates.by frankvdh - Reprappers
Probably already covered during the switching of steppers, but for completeness... Have you checked the tension on your belts? And that the pulley on the stepper is locked down properly with the grub screw? Also, is the stepper itself overheating? Do you use auto bed-levelling? If you do, then play in the Z axis (e.g. a loose Z-coupler) can cause discrepancies in the X & or Y axes.by frankvdh - Reprappers
Thanks... it's not there in my v1.30-dev (Slic3r-1.3.0-dev-4db029c-x86_64).by frankvdh - Slic3r