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--- projects:3dprinting:anycubic_i3_mega:redesign_hub_pcb_v1_v2_v3 [2020/11/08 18:53] – [Mega Hub PCB v3] admin
+++ projects:3dprinting:anycubic_i3_mega:redesign_hub_pcb_v1_v2_v3 [2020/11/09 01:03] (current) – [Mega Hub PCB v1] admin
@@ Line 5: / Line 5: @@
 The predecessors of the Anycubic Mega Hub with ESD protection have all the same dimensions. The differences can be seen below.
-==== Mega Hub PCB v1 ====
+===== Mega Hub PCB v1 =====
 The first version still contained the original connectors
 ^  I3 MEGA HUB-II distribution circuit board  ^^
@@ Line 15: / Line 15: @@
   * {{ :projects:3dprinting:anycubic_i3_mega:i3_mega_hub2-pinout.pdf|Pinout / Pin description of the connectors at the circuit board.}}
-==== Mega Hub PCB v2 ====
+The Anycubic I3 Mega enclosure needs to be slightly modified to give some space to the D-sub connectors. For this holes need to be cut in the metal casing. The following file can be helpful here:
-Specially for adding a [[projects:3dprinting:anycubic_i3_mega:cable_chain|cable chain]] to the printer, a further redesign of the circuit board (I3 MEGA HUB3) was made:
+  * {{ :projects:3dprinting:anycubic_i3_mega:i3_mega_hub2-outline.pdf|I3 MEGA HUB2 outline.}}
-  * [[projects:3dprinting:anycubic_i3_mega:redesign_hub_pcb3|ANYCUBIC I3 MEGA HUB3 redesign]]
+===== Mega Hub PCB v2 =====
+Specially for adding a [[projects:3dprinting:anycubic_i3_mega:cable_chain|cable chain]] to the printer, a further redesign of the circuit board (I3 MEGA HUB3) was made
 The improvements are mainly that the connections for the X, Z (right) and E0-steppers (filament) were placed on the right side, making a single cable chain with all necessary wires for the steppers easier to realize.
 The wires for the left Z-axis are still placed on the left side, as these do not have to be running through the cable chain.
-==== Mega Hub PCB v3 ====
+===== Mega Hub PCB v3 =====
 Following up the changes from the [[projects:3dprinting:anycubic_i3_mega:redesign_hub_pcb|second version]], further changes and simplifications were made. Most important were to leave out the 3 original red/blue/green connectors and only use D-sub connectors. Also a redundant X-stepper D-sub connection, one on the left and one on the right side, was made. This makes it possible to connect the stepper motor for the X-axis either from the left side (when using a dedicated cable chain), or from the right side (using the standard wiring).

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