projects:3dprinting:anycubic_i3_mega
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projects:3dprinting:anycubic_i3_mega [2019/11/16 22:27] – [Distribution circuit board] admin | projects:3dprinting:anycubic_i3_mega [2020/03/11 23:41] – admin | ||
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====== Modifications for the ANYCUBIC I3 MEGA 3d printer ====== | ====== Modifications for the ANYCUBIC I3 MEGA 3d printer ====== | ||
- | This page shows modifications | + | This page lists modification guides |
- | * How to retrofit the printer with a BLTouch leveler. | + | |
- | * Reverse engineer the distribution circuit board in order swap the external connectors for dsub-types. | + | |
- | ===== Retrofitting the printer with a BLTouch leveler ===== | + | Wiring modification guide |
- | The printer can be upgraded with an automatic leveler from [[https://www.antclabs.com/ | + | |
- | ==== Hardware modification ==== | + | Antclaps |
- | The pins with which the BLTouch | + | * [[projects: |
- | * D2 (Mega 2560, digital pin 2) for Zmin (Note that this signal has the label +X on the controller circuit board) | + | |
- | * D11 (Mega 2560, digital pin 11) for the control signal | + | |
- | + | | |
- | To understand how to connect the leveler to the controller, the following overview shows how the signals are routed (click on pictures for larger size): | + | |
- | ^ Anycubic I3 MEGA BLTouch wiring overview | + | |
- | | {{:projects: | + | |
- | + | ||
- | With some larger pictures from the internal housing, the wiring looks like the following: | + | |
- | ^ Anycubic I3 MEGA internal wiring details | + | |
- | | {{: | + | |
- | + | ||
- | + | ||
- | To get the correct mounting position, a bracket was designed in freecad which fits close to the extruder: | + | |
- | ^ Bracket for BLTouch | + | |
- | | {{:projects: | + | |
- | Please note that the shim which can be seen on the 2nd and 3rd picture was required in order to get a total distance of 25.0mm. The [[http:// | + | |
- | + | ||
- | At the print head a tiny strip board was added as carrier | + | |
- | ^ Print head ^^^^ | + | |
- | | {{:projects: | + | |
- | + | ||
- | The three wires for GND, +5v and control signal are added to the main cable assembly and routed via the side where the connectors are, into the inner housing: | + | |
- | ^ External wiring and final result | + | |
- | | {{:projects: | + | |
- | + | ||
- | ==== Software modification ==== | + | |
- | Todo. See: [[http:// | + | |
- | ===== Distribution circuit board ===== | + | |
- | The external connections of the 3d-printer are neither very robust, nor do they offer much flexibility in respect to upgrading/ | + | |
- | + | ||
- | The original circuit board was analyzed using a flatbed scanner: | + | |
- | + | ||
- | ^ Anycubic I3 MEGA distribution circuit board (with and without annotation) | + | |
- | | {{ :projects: | + | |
- | | {{ : | + | |
- | + | ||
- | Then with KiCad schematics were drawn and a new circuit board was designed: | + | |
- | + | ||
- | ^ I3 MEGA HUB-II distribution circuit board ^^ | + | |
- | | {{ : | + | |
- | | // | + | |
+ | * [[projects: | ||
+ | Further information | ||
+ | * Heatbed temperature sensor: Atmega2560, Pin 83 (Analog 14), with external pull-up of 4k7 | ||
+ | * Etc. |
projects/3dprinting/anycubic_i3_mega.txt · Last modified: 2020/11/09 01:16 by admin