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Bluetooth hotend for 3D printer

Not only less wires, but print faster and more stable

robertrobert
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This project was created on 11/23/2018 and last updated 2 years ago.

Description

1, Reduce the 3D printer MCU pressure, and can print faster.2, No a lot of wires to motherboard,only need power supply wire.3, you can add more sensors easily, like filament sensors.4，more stable, because printer no need to worry about temperature out of control.5,no need worry bout the wireless is not stable or lost data, since no need to sync data with mother board.CC2541 is not only a Bluetooth but a MCU can control heater with PID pwm and read temperature with internal ADC , and the temperature signal no need sync with mother board like motor control signal.The changed marlin source code:https://github.com/hackaday3D/marlin_Atmel2560/tree/master/Marlin-BT/Marlin

Project Logs
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  • new board！

    robert • 12/22/2018 at 04:12 • 0 comments

  • auto level print

    robert • 12/15/2018 at 08:43 • 0 comments

    auto level print

  • printing more than 11 hours

    robert • 12/11/2018 at 15:38 • 0 comments

  • wirless endstop for 3D printer

    robert • 12/05/2018 at 08:48 • 0 comments


    here is a video that show the auto home trigger position precision every time.

  • use optical tracking tangled filament

    robert • 12/01/2018 at 09:20 • 0 comments

    use optical tracking tangled filament or run out


  • received filament optical tracking chip

    robert • 11/28/2018 at 10:40 • 0 comments

    optical tracking chip PAT9125


  • testing|：heater,temperature sensor,2 fans

    robert • 11/27/2018 at 07:29 • 0 comments

    there are one heater,temperature sensor,2 fans.

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Clara Hobbs wrote 11/25/2018 at 04:29 • point

This seems interesting, but I can see a potential to create a whole lot of new problems in an attempt to solve the problem of too many wires running to the extruder.  Most of the issues I foresee have to do with latency and clock synchronization, but connection reliability is sure to be another one.  I'll be interested to see how you overcome these problems.

  Are you sure? yes | no

Martin wrote 11/27/2018 at 10:37 • point

Yes. So one could think about a separate microcontroller on the head with some kind of (wired) data bus, but I would not trust on a bluetooth link in this case.

  Are you sure? yes | no

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