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Hello everyone,
after my more or less failed lpc1768 3d controller board ("https://reprap.org/forum/read.php?159,876626") which doesn't wanted to work, but after a long time I found out why: I needed to keep the bootloader entry pin high during the entire flashing instead of pushing the button and releasing it. But this board is now declared dead by me and no further development will be made beca
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DocRaptor
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Experimental and Hobby
QuoteDust
" internal serial bootloader, but it doesn't work"
odd, its worked for me a number of time to restore sd card bootloaders
take a look at
Maybe you can find a clue as to whats going wrong.
I tried that for days. I even removed the resistor R19, which briged P2.10 and P2.11 for the Z-axis stepper driver, soldered a button from P2.10 and and ground on capacitor C48 (it was the best
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DocRaptor
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Experimental and Hobby
Hi everyone, I designed a board, which is more of break-out-board than controller. It has two 40 pin connectors (2x20 pin rows) (and a 2 pin header from the power input), so that ide cables can be used to connect it to a mcu (or to plug in board with a mcu on it). It can be used for developing your own boards. It is not tested now.
It has a lm2575, so it can handle 36v.
Everything is trough-hole
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DocRaptor
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Experimental and Hobby
QuoteCrunch69
Doc Raptor how are you fixing the memory process issue? Is there a way to add memory to the LPC1768 and allow more than 2 processes so it can run a complete RRF firmware port without any restriction?
I didn't made anything with RRF, because I have problems with the LPC1768. I tried to used its internal serial bootloader, but it doesn't work (I don't have any specific tools for nxp
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DocRaptor
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Experimental and Hobby
Thanks for the information for the stm32 port. I looked it up. It is relative new so there could be some bugs (in the lpc port could be also some bugs, but a lot should be removed by now). When I made this board I could make version of this one with a STM32F4 mcu.
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DocRaptor
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Experimental and Hobby
Hi everyone,
after my first design (https://reprap.org/forum/read.php?159,867970), which is running in some of my printers, I started a new design base on a lot of parts from my first design (Powerregulators and Mosfets, these worked fine), but this time I gona use the LPC1768 instead of the STM32F103, even so I really like the STM32F103, but Marlin starts to annoying me. Marlin needs to be recom
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DocRaptor
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Experimental and Hobby
I added mkdir in to the path-variable of my windows from my git-install, but I still have the error.
I want be abble to compile the reprapfirmware for potential custom boards and maybe some mods if needed. I normally use Marlin, but I need to compile it every time I make a change and that is annoying. Currently I use Marlin on my on custom board with a STM32F103. The STM32F103 line is cheap (som
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DocRaptor
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Firmware - experimental, borrowed, and future
Hi,
I tried to compile the RepRapFirmware for LPC, but I always have errors when I try to compile it. I use Visual Code Studio with windows arm-none-eabi and PlatformIO (disabled in the moment). I tried al lot of branches from the git-reposetory from gloomyandy, but it always fails. The error is:
Building RepRapFirmware for LPC1768/1769 based boards:
- Build: Debug
- Linker Script used: ./CoreLP
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DocRaptor
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Firmware - experimental, borrowed, and future
QuoteDust
Its utterly pointless telling us this without error logs!
The error were the same, but every stm32f1 based (even the fysetc ones too, that compilled), had them. So I reinstalled PlatformIO again, but this time with a different editor, and still nothing. Now I downloaded Marlin again and used for testing the example configurations from here and modified the platformio.ini for the board
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DocRaptor
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Firmware - Marlin
I reinstaled platformIO and tested it again. Now I can't compile anything. Great
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DocRaptor
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Firmware - Marlin
Looks like I mixed in the export two marlin-files together. I wanted to put the one custom_controller here, but the entire marlin files in zip-format didn't fit here and so I wanted just put the files up here, which I changed, but I mixed it up with some other Marlin files. I have to much files.
I tested some other boards with configuration. bigtree skr mini v1.1 didn't work and gave the same err
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DocRaptor
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Firmware - Marlin
Hi everybody. I have a problem with Marlin 2.0 in PlatformIO. I try to compile it for a STM32F103RET on a custom build board (the pinout is similar to the bigtree skr mini v1.1, but one pin is different and the pins for the sd-card slot on the board are free so I can use them for the stepperdriver when using when I want to upgrade to tmc driver and some other stuff I did), but I always get errors
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DocRaptor
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Firmware - Marlin
I uploaded the pcb-files to github now (https://github.com/Doc-Raptor/dragon_controller). During routing the traces on the board I saw that it would be simpler to rotate the mcu 180°, but I didn't because I was in the middle of routing so I will leave it for a later board-revision.
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DocRaptor
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Experimental and Hobby
Hi,
I currently design some boards (one of them is this here: ) and one of them is a 32bit replacement-board for anet style printers. It has a stm32f103ret and socketed driver. It will mostly a drop-in replacement for the old board on anet printers and with custom mounts and enough space also for other printers with an 8-bit board. In the moment I work on the pcb-layout but I upload the schematic
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DocRaptor
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Experimental and Hobby
If ReprapFirmware would run on stm32 mcu's I would choose the stm32f103 or stm103f407. But it need to be ported. With the Arduino IDE the guys at Arduino know the IDE is not suited for big projects. Thats why they develop a new IDE (https://blog.arduino.cc/2019/10/18/arduino-pro-ide-alpha-preview-with-advanced-features/). But the nice thing about the Arduino IDE is that it's simple and "powerful
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DocRaptor
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Experimental and Hobby
Hi everyone,
I am designing a low cost 32-bit board. It will have the atsam3x8e to be programmable with the arduino IDE without the need of "plugins" unlike the stm32f103. It also should be usable with the marlin-firmware and the reprapfirmware. It will have four stepper driver on board (should be expandable to three more to run potentially an idex corexy printer). Now there is a problem. I want
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DocRaptor
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Experimental and Hobby
Hi,
does Marlin support UART multiplexing for the stepper drivers, because some of the trinamic ones uses uart, like the RepRapFirmware? The Duet Maestro (which has the RepRapFirmware) does it.
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DocRaptor
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Firmware - Marlin
Hi,
I made for myself two testboard, one for the standart Pololu stepper driver and one for TMC stepper driver with SPI. I use them to test various stuff. They can be used to prototype. They have an switching 5v power regulator, which powers a linear 3.3v power regulator. They don't have a mcu on board, instead you hook any flavor of mcu you want (and test) with jumpers on it. For some of you the
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DocRaptor
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Experimental and Hobby
Thats why I design my ramps-version with the voltage regulator integrated to avoid they need to mod a mega (or due, this ramps should also be also usable with it) itself. I have a bunch of megas with dead AMS1117-05. The LM2575 is easy, simple and able to handle up to 40V (says the datasheet, but I used it only up to 24V).
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DocRaptor
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RAMPS Electronics
The solder points touching the USB port was my mistake. I corrected it as far as I could.
I wanted to put 5V on the unused aux-3 pin, but I forgot about it. Now there is 5V.
Log-PWR is now on IOref. I didn't know that it can be used for this. Thanks for the tip.
And the Jumpers for the thermistors are now able to select between A13-A15 and A9-A11 instead of just disconnecting A13-A15 and than ru
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DocRaptor
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RAMPS Electronics
Thanks for the tips MrAlvin,
I added some flyback diodes for each mosfet. I intendet to use the 1N4001, but I gone with the 1N5819 because its already used on the board with the 5v circut and there a ramps derivative out there using this diode (https://www.tindie.com/products/staticboards/ramps-14-sb-premium/#) . Also the guys in the store where I buy the components sometimes have less chances to
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DocRaptor
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RAMPS Electronics
Hi,
I just wanted to share my variant of the Ramps 1.4. I modded it little bit, so it is now capable of 24V. It uses a LM2575 to generate 5V. It has a jumper to select the logiclevel and some jumpers (Thermistors) to be able to be used with an arduino mega and a due. It uses IRF3708 Mosfets, so it can be used with a due or a stm32 microcontroller. And there are blade fuses instade of polyfuses. I
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DocRaptor
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RAMPS Electronics
Hi to everyone,
the missing of Photos and posts is because I had (and still have) problems with the z-axis. The printer printed one Test-piece fine, but after this print it doesn't want to work. The z-axis doesn't want to move correct. It skips a lot of steps now (especially by low speeds). It's more like stuck. In the beginning it I used an M8 threaded rod made out of zink coated steel, wich I s
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DocRaptor
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CoreXY Machines
Hi to everyone,
after a long time and a lot of tweaking and changing (again) and fixing problems I got it working in a test (dry rum, I orderd a new powersupply because the old one wasn't powerfull enough for the heatbed).
You can download the files here (this will be the last time I upload them here) and in the future under a website I reused for this: mad-devs.de . I will also post there the bu
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DocRaptor
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CoreXY Machines
Currently I am in the making of the making of a fully pictured guide how to mount everything (what goes where, which bolts and cable ties ...), but it will take some time to do it. Also the lasercutted parts need to be orderd and made.
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DocRaptor
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CoreXY Machines
Some parts are tested now, others not. I corrected a few things. Here are the new files, now with the dxf-files for lasercutting the chassis with 6mm material (multiplex or mdf). But these are not tested now.
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DocRaptor
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CoreXY Machines
After a long time no post here in this topic here from me I'm back with a new "update" for the printer. It isn't really an update because I designed most of it from the groundup new. It now a corexy design (h-bot was to problematic), lm8uu and lm8luu linear bearing are now used and a lot of other little and big things. I currently testmounting it in a mdf box (as a chassis) for testing and making
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DocRaptor
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CoreXY Machines
Beheiztes habe ich nicht. Ich habe noch eine neue Rolle von dem Fillament. Die kann ich mal testen.
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DocRaptor
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Allgemeines
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