Differences

This shows you the differences between two versions of the page.

--- projects:3dprinting:anycubic_i3_mega [2019/03/09 03:07] – [Software modification] admin
+++ projects:3dprinting:anycubic_i3_mega [2019/11/16 22:27] – [Distribution circuit board] admin
@@ Line 24: / Line 24: @@
 ^  Bracket for BLTouch  ^^^^^
 |  {{:projects:3dprinting:01.bltouch_mount_e.png?direct&178x200}}  |  {{:projects:3dprinting:01.bltouch_mount.png?direct&88x200}}  |  {{:projects:3dprinting:01.bltouch_mount_b.png?direct&172x200}}  |  {{:projects:3dprinting:01.bltouch_mount_c.png?direct&159x200}}  |  {{:projects:3dprinting:01.bltouch_mount_d.png?direct&163x200}}  |
-Please note that the shim which can be seen on the picture was required in order to  get a total height of 25.0mm. The [[http://www.auditeon.com/xyz/01.BLTouch_mount_e.fcstd|final design]] (FreeCad fcstd) is in a single piece and has this height already corrected.
+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://www.auditeon.com/xyz/01.BLTouch_mount_e.fcstd|final design]] (FreeCad fcstd) is in a single piece and has this height already corrected.
 At the print head a tiny strip board was added as carrier for a 3-pin jst connector. This would make it easier to separate the print head if necessary. Kapton tape was used to prevent any contact to adjacent pins. The square opening at the frame of the print head was made larger so the jst connector would also fit. Please note the difference between the last two pictures:
@@ Line 37: / Line 37: @@
 Todo. See: [[http://marlinfw.org/docs/configuration/configuration.html]]
 ===== Distribution circuit board =====
-For easier upgrading mechanical parts of the printer, it would be beneficial to exchange the external connections to more robust and versatile DSUB type connectors. For this a new circuit board is required to replace the current board.
+The external connections of the 3d-printer are neither very robust, nor do they offer much flexibility in respect to upgrading/changing the printer. From the original distribution circuit board a new board was designed which has both the original and D-sub connectors.
-In order to design this board, it is first necessary to reverse engineer the original circuit board:
+The original circuit board was analyzed using a flatbed scanner:
 ^  Anycubic I3 MEGA distribution circuit board (with and without annotation)  ^^
@@ Line 45: / Line 45: @@
 |  {{ :projects:3dprinting:anycubic_distribution_pcb.pdf?direct | anycubic_distribution_pcb.pdf}}  |  {{ :projects:3dprinting:anycubic_distribution_pcb_annotated.pdf | anycubic_distribution_pcb_annotated.pdf}}  |
-Click on either link above to find both sides of the circuit board
+Then with KiCad schematics were drawn and a new circuit board was designed:
+^  I3 MEGA HUB-II distribution circuit board  ^^
+|  {{ :projects:3dprinting:I3_MEGA_HUB_II_TOP.png?direct |}}  |  {{ :projects:3dprinting:I3_MEGA_HUB_II_BOT.png?direct |}}  |
+|  //Top//  |  //Bottom//  |