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Re: Marlin Simulator Help - 9 months ago

QuoteDust Its identical to my imgui.ini under linux.. I guess I can live with deleting it before I start the sim, but seems flakey to me. Thanks, Dust!

Re: Marlin Simulator Help - 9 months ago

And, as always, many thanks for your help!

Re: Marlin Simulator Help - 9 months ago

Windows 10, 64 bit. When I run the sim, it creates eeprom.dat, imgui.ini, and spi_flash.bin files in the pio/build/simulator_windows folder where the newly compiled MarlinSimulator.exe file resides. I have to delete the imgui.ini file to run the sim a second time, or it just briefly opens a blank screen, and then closes.

Re: Marlin Simulator Help - 9 months ago

@Dust, that worked a charm, but issue #1 still applies. I can only run the sim once, unless I delete the auto-generated files it creates on the first run. I've tried the obvious, like inializing EEPROM, etc.

Marlin Simulator Help - 9 months ago

I have successfully compiled an executable with the Marlin simulator, but: 1) It will only run one time. If I exit, and then run the executable again, it shuts down, UNLESS I delete the imgui.ini and eeprom.dat files auto-created during the first run. 2) I cannot compile an executable with the TFT_COLOR_UI display. I am using the latest bugfix, and the unchanged config files from the latest ex

Re: VDE Extruder from off the shelf components - 9 months ago

Quoteantst Even if it look more bulky than "usual" VDE, printed part is about 6g now. With all expansion for bolting parts together it will be 8g or so. Additionally, I am thinking about making it fully enclosed, so blades will be completely inside, this will add, maybe, something like extra 3g (and then wit will be needed to print as 3 parts (think about cover from the side where blades are now)

Re: The extruder motor doesn't work - 9 months ago

QuoteDust Linked Configuration.h has #define E0_DRIVER_TYPE DRV8825 Marlin would refuse to build if that was DRV88 This is just a cut/paste issue in the report Sorry about that; it'll teach me to keep my trap shut unless I've read the actual configs!

Re: The extruder motor doesn't work - 9 months ago

Quotetmz #define PREVENT_COLD_EXTRUSION #define EXTRUDE_MINTEMP 170 yes, correct stepper plug #define X_DRIVER_TYPE DRV8825 #define Y_DRIVER_TYPE DRV8825 #define Z_DRIVER_TYPE DRV8825 //#define X2_DRIVER_TYPE A4988 //#define Y2_DRIVER_TYPE A4988 //#define Z2_DRIVER_TYPE A4988 //#define Z3_DRIVER_TYPE A4988 //#define Z4_DRIVER_TYPE A4988 //#define I_DRIVER_TYPE A4988 //#define J_DRIVER_TYP

Re: z axis does not stop moving downward after auto home - 9 months ago

QuoteDust You cannot edit the .hex file The .hex is the finished cake, while you need to modify the ingredients (ie the Config files before building) Eg @Dust, hex is the finished cake, modify the ingredients is nicely said.

Don't Do This - 9 months ago

In a never ending quest for accuracy and repeatability, I machined new carriage rollers for my delta printer out of 7075 aluminum, with ABEC 5 grade flanged bearings. Big mistake. The standard deviation of the Marlin M48 probe repeatability test degraded from always better than 3 microns, to generally in the neighborhood of 70 microns. The printer sounded nasty, and there were distinctly visibl

Re: Is 3.00mm filament dead? - 11 months ago

I don't know if this is at all applicable to you, but these days there seems to be a lot of interest in printing as fast as possible. It's easier to quickly melt 1.75mm filament than 3.00mm filament. I think this is just another factor in the demise of 3mm filament.

Re: An Optical Filament Sensor That Actually Works - 11 months ago

QuoteKaren This topic is great, and everyone's discussions are very innovative and worth learning from. Are you sure? I mean really, seriously, sure?

VDE-100 printing Matterhackers Build flexible TPU - 1 year ago

I know I've mentioned that the VDE-100 extruder can print flexibles, and here's a very short video of the last 2 seconds of a roughly 1.5 hour print of it actually doing so. 240C nozzle, 60C bed, 60mm/sec speed, sliced in Cura. This clear TPU feels like overcooked spaghetti on the spool. Also a shot of the finished object, a cutter guard.

Re: Firmware 2.1.3-b2. "Probing Point" - digits after the decimal point. - 1 year ago

@TronxyED, I would also like to know why this has changed. I too used the reported value as an indication of the bed flatness. It is certainly not just a parroting of the configuration.h value of "Z_CLEARANCE_BETWEEN_PROBES", but a display of the difference between the assigned z clearance and where the z probe triggers. As such, it used to be of value, but now no longer is. EDIT: The latest bug

Salute to the Moderator, and a Happy New Year - 1 year ago

Be well, be inventive, be thoughtful.

Re: Wrong Z height after long print, Z-shifting - 1 year ago

Interesting. I've recently noticed that the latest bugfix prints all of the axes on a 1 inch test cube 0.008 inches (0.200mm) too big. Reverting to a bugfix from April 2023 makes the problem go away.

Re: Bed temperature offset and stabilization - 1 year ago

QuotePCLoadPLA I confirmed the temperature with a bimetallic hot-plate thermometer as well...I trust it, but it responds very slowly so I had to use the IR gun to measure the stabilization. If the thermistor were in the aluminum, instead of the heater, the PID control should compensate for at least some of the offset and "lag" between the heater and the top of the aluminum. For now I will just

Re: Bed temperature offset and stabilization - 1 year ago

What you describe is not only common, it's unavoidable physics. You are heating a 1/4 inch thick aluminum plate from the bottom while it radiates heat into the environment from the top. Because there is no such thing as a perfect thermal superconductor ( a heat pipe or thermal plate comes close), there will always be a temperature difference between the heat source and the print surface. The PE

Re: Water Measureing Sensor - 1 year ago

We need more information. What are you trying to measure? Water temperature, water quantity, water quality, water pressure, water pH...? Assuming it's water temperature, given your thermistor attempt?

Re: thermistor calibration - 1 year ago

QuoteVDX ... you can try with fluid metal with a low melting temp. I like . A bit expensive, but clean, transparent, good to 400C or so, and doesn't amalgamate to electrical leads like liquid metal. Also see for more than you want to know on platinum RTDs. Hope this helps.

Re: Hot/Cold swap Nozzle idea - 1 year ago

At least in the US, the patent system is totally out of control. In fact, it's so bad I have twice accomplished "reverse patent trolling". It works like this. I make a thing, and publish it for all to see and copy. A patent troll contacts me and says that I am violating their patent, and they are going to take me to court. I invite them to take me to court, and advise them that the very likely

Re: PID tuning failing for larger bed? - 2 years ago

Where did the PID coefficients come from? They look a bit...odd, shall we say. And why are you limiting the bed power to 50%? My last thought is that a bad thermal sensor, or a thermal sensor with very poor thermal coupling to the bed, or a thermal sensor with flaky or intermittent wiring could easily display those symptoms.

Re: VDE-200 (Schnekenstruder Rev. 2) - 2 years ago

Quotecyber_v1 It looks like the 1.60mm bore won't work as the knife then intersects the filament on all sides. I also don't really understand how it may work since the part is totally symmetrical and it can't "prefer" to which side to push the filament. Yes, and a nut intersects its bolt on all sides. Yet observe, grasshopper, that it goes up and down the bolt when either is rotated. Or sometim

Re: VDE-200 (Schnekenstruder Rev. 2) - 2 years ago

Quotecyber_v1 Quoterq3 Quotecyber_v1 Hi! I'm curious about this design; do you mind sharing the model or explain better about how the titanium insert was made? I don't really understand how it can have an internal bore of 1.60mm if the filament diameter is 1.75mm. The design is basically a swashplate, with the friction of the bearing balls providing the drive ratio between the inner hollow drive

Re: VDE-200 (Schnekenstruder Rev. 2) - 2 years ago

Quotecyber_v1 Hi! I'm curious about this design; do you mind sharing the model or explain better about how the titanium insert was made? I don't really understand how it can have an internal bore of 1.60mm if the filament diameter is 1.75mm. The design is basically a swashplate, with the friction of the bearing balls providing the drive ratio between the inner hollow drive shaft, and the outer b

Re: An Optical Filament Sensor That Actually Works - 2 years ago

Quotelooxonline What was the reliability like with movement detection. I notice that you are looking for even just a single value difference between the two averages. It seems like ADC noise alone may be able to generate that. I am struggling to understand how movement of the filament would produce a different value across the ADC when the filament tolerance is around 0.005mm diameter these days.

Re: Need for a Bowden extruder for a faithful servant. - 2 years ago

Mike, it's not a bowden, but this is what I've been using on my delta for several years now. Other threads in the tech forum have more details and thoughts. Rip

Re: An Optical Filament Sensor That Actually Works - 2 years ago

Quotelooxonline Did you ever have any issues with filament dust messing with the ADC readings and causing false triggers? Nope.

Re: An Optical Filament Sensor That Actually Works - 2 years ago

Quotelooxonline Am I right in thinking that you needed to cut two slots in the guide tube at the base for the LEDs to shine through? No. If you look at the printed circuit board, the filament goes through a small hole across which the LEDs shine and detect. The guide tubes just guide the filament.

Re: My custom watercooling setup - 3 years ago