Sensorless homing up and running on the new Skr v1.4 turbo+TMC2209s! We have to go to Configuration - Advanced Settings - TMC Drivers - Sensorless Homing. * Too low values can lead to false positives, while too high values will collide the axis without triggering. I can confirm that soldering the left and middle pads fixed it. The first of them will help us to activate the Marlin emulation on our display. Ender 3 Upgrades – BLTouch sensor with Marlin 2.0, Anet A8 Plus with Marlin 2.0 - Tom Hofman, Anet A8 (Plus) Marlin 2.0 Installation Upgrade. If we follow that link, it takes us to the explanation. And we're crashing into both axis, so we are way too low with our values. But, we will have to reset the EEPROM because the default settings that are configured in our firmware are not yet in the EEPROM, so we should make sure the EEPROM gets a reset to default values. However, although these tables extracted from official SKR support indicate that it does not have WiFi support, this does not in any way imply that you cannot install one if you wish. Liked it? Don't confuse that with Sensorless probing. Whatever is configured here currently, you need to change that to BOARD_BTT_SKR_V1_3. Not only is it a powerful code editor, but it also has a large number of extensions, and you can even compile Marlin directly from it. Learn all you need to know about BLTouch sensors: what they are, how they work, a setup guide, and where to buy your first BLTouch. Unfortunately in this case the pin does not match either, so you will have to deviate the pin again to fit the one on the board. i spent days trying to figure out the UART connection issues on my SKR1.4 turbo / watterott TMC2209 combo. So, in my case, sensorless homing worked fine for X and Y but as I said in the beginning, we wanna have this value as low as possible for both axis so we don't get any false positives during printing. Double interface for the Z axis, support for external power modules, support for LED strips, and some other things. I usually download the firmware LATEST RELEASE, just below the word DOWNLOAD. Do this by entering the configuration menu and then go to the advanced settings menu. Thanks for read the article and for your comments. Now, let's check the Y-Axis. All this would not be available if we had not established UART as a communication mode and connected the DIAG pin a of the driver to our SKR board. The support from the programmers is noteworthy. I’m using the Marlin firmware, and it’s a few extra steps to translate the gcode for it, but it’s working well. If we do not indicate it Visual Studio Code you would have problems compiling our firmware. The rest of the components of the printer such as the number of extruders, speeds, printer size, temperature parameters and many other things we already explained previously in the article that I indicated a few lines above (Complete guide of Marlin). I've covered the required steps to get all this prepared in another video that I've linked up here, so you can set your environment up correctly using that guide and learn how to compile Marlin firmware 2.0 with those tools. In the image above you can see the modifications that must be made on the electronic board. In my case, I can actually trigger a reset directly from the display with this button. Obviously there are many people with problems using TMC2209 with sensorless homing. The first parameter that we must modify is the interpolation of the steps of our driver. During homing, you need StallGuard to be enabled no matter what, so TMC2130_TCOOLTHRS should be set to max (like it is done in Marlin). Although, in the previous section we recommend you download Marlin directly from the official page, you can also use our Marlin Builder that we prepared some time ago in 3DWork. Moreover you simply need to place a jumper connector on the DIAG pin for the axis that you wish to use. Ok, We can now take care of tuning in sensorless homing. Use this command to set the bump sensitivity for the X, Y, and Z stepper drivers. The differences are more marked when we compare a SKR v1.3 electronics with its higher versions v1.4 and v1.4 Turbo. To put them in smart UART mode and use the StallGuard™ function (without limit switches), you only have to use two simple jumpers that I am going to show you in the following images. Marlin hasn’t been great in the past at being right when you combine corner cases like that, but sensorless homing and dual endstops have been out long enough, maybe it will work. SENSORLESS_HOMING: Set SENSORLESS_HOMING sensitivity. Regards! Before starting with the Marlin configuration, if you are starting from scratch to prepare your new firmware, I recommend that you read this other article before: Complete guide: Set up Marlin 2.0.x from scratch and not die trying. normally-closed switches), while S0 indicates active low inputs. I only have X, Y, Z and E0, so I will modify the values ​​in the corresponding section. Then we will indicate the voltage and the micro steps to which each of the motors must operate. As I've told you in the hardware installation video last time, I am currently using the Anet full graphics display, so I will make sure, I have enabled #define SPEAKER at around line 1772 so it gives me feedback for example when I save my settings. So, I think we're good to go, let's open up the Auto Build Marlin extension and hit compile to see, if we have any issues. For the other motors on this printer, I actually don't know the peak current values, so I'm gonna leave it on 800, which is the default. We will start with the parameters to configure the communication ports (main and secondary) and the communication speed. Also think that you have to do it in at least 3 or 4 motors, the odds as you can imagine of having made a mistake soar. Hello, my name is Daniel, welcome to the CrossLink channel. Is it moving the filament out? The middle and right solder connection works on the skr 1.3 but not the 1.4. I will select 10 millimeter. If the homing speed is too low for StallGuard to work reliably, you might have to increase the homing speed - at least TCOOLTHRS cannot help with that, IMHO. StallGuard capable TMCxxxx stepper driver 2. ╔═╦╗ °☆°☆°☆°☆°☆°☆° Im using RAMPS 1.4 on my Hypercube with Marlin 1.1.5. As in my case it is 24V, I indicate it to Marlin in the following way: We activate various temperature protections for our TMC2209 drivers that Trinamic offers us, among other things: We proceed to activate the StallGuard ™ option in our Marlin firmware. It’s Greatly Appreciated. I can’t get it to recognize the printer in touch mode. In my printers I leave microstepping as it comes from Marlin, and drivers I use 850, 850, 850 and 600 (X, Y, Z and E0). Something vital to calibrate the prints on the first layer correctly. And now. It’s also a good idea to add these two lines [home bump] right after the sensitivity settings to … …again: f****ing awesome guide. Looks good, everything is compiling and we have a new firmware file. BigTreeTech, the company behind SKR electronics, also develops its own drivers that mount the TMC2209 chip. However, as always, we must activate the UART + Sensorless mode on our board, so we will follow the usual instructions, I leave the image below of the position of the jumpers. So you are going to have to put a fairly long pin and make a couple of doubles, so that when you click it it fits into the hole next to it (and not the one that corresponds to it). Around line 130 there is the #define MOTHERBOARD statement. Let's have a look at the default configuration for each stepper driver. If we only compare the last two models, the only thing that differentiates the SKR v1.4 electronics from the v1.4 Turbo is that it has a superior microcontroller. I guess I really didn’t realize it was needed. A recommended value to start with is 100 , this is how I left it in my firmware. After having finished both modifications on the SKR v1.4 / v1.4 Turbo board, we will proceed to make the appropriate modifications to our drivers. So at least you could give a new utility and it would not be left in the forgotten drawer. Their architecture is ARM Cortex-M3 (CPU) and they can be powered interchangeably at 12V and 24V (5A-15A). I have always preferred the Marlin menus on my MINI12864 Displays and have the possibility to activate / deactivate any firmware option without waiting for odious display updates that either arrive late or simply do not arrive. When I send the printer a command to move the Y-Axis to a higher value, it should actually move the bed to the front because we're trying to move the nozzle to the back, alright? ╔╩╗║╬║║║ ☆° Congratulations, that is the basic setup done in the Configuration file for using the SKR V1.4 complete. I leave you image below so you can see how it was in a user who made this modification. I will expose here the different configurations for each manufacturer of TMC2209 drivers and in case I am missing any, do not hesitate to write me a comment at the end of the article and I will try to add it if I have access to the information. Hi Devin, In the video below you can see how to switch between MARLIN modes (text mode) to TOUCHSCREEN mode (touch screen). ╚╗╔╣╚╦═╗╔═╦╣╠╗ That is because we have different communication speeds selected in our Marlin Firmware and on our display. In the end, it also just lands on the SD Card. This means that if you are using a “hybrid” display, you can change from TouchMode to marlin (text) mode by pressing the main button for 3 seconds. And with this, we would already have everything configured. Regardless of the power source you use, you should always use components that match it. Also offers us in-house drivers value is correct recommend removing only the and. Vistual Studio Code you would have problems compiling our firmware self-leveling sensor Z... 20 plus hour print of the power source you use, you can access by... Other displays without problem to configuration - advanced settings menu that allows load measurements to be available for sensorless. Know how to switch between Marlin modes ( text mode ) to TouchScreen mode not... Sourcecodes on your display, that 's set to 16 and you ’ wondering... Excessively damage the pins 's menus rated for a maximum of 256 the... 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