The definitive guide for fitting a BLtouch to an Ender 3! Full SD card support and no wires cut in this easy to follow step by step guide.
ABL or auto bed levelling is a must for many Ender 3 owners because their beds have arrived warped. ABL will probe the print surface before each print and build a virtual mesh which alters the early layers to match the contours of the bed. The result should be a much better first layer and hopefully a better and more reliable print.
This is part 2 of a head to head ABL shootout, part 1 previously featuring the EZABL. The BLtouch emulates a folding servo and microswitch and is popular because it works on any build surface without recalibration. Other guides ask you to remove SD card support to make Marlin fit on the 1284P microcontroller, but some after worthwhile time spent in the firmware I found a way to have everything except the boot screen enabled.
This video assumes you have flashed a bootloader with my previous guide: https://www.youtube.com/watch?v=fIl5X2ffdyo
If you are getting this kit, make sure you buy directly from ANTclabs, not another vendor who is trying to rip them off.
Purchase the Ender 3 from these links:
Ender 3 Pro Banggood ($30 off with coupon 1d1c08): http://bit.ly/2OUcEyS
Ender 3 Banggood (US warehouse, Coupon: f2bf59): http://bit.ly/2Efoi6B
Ender 3 Pro Amazon: https://amzn.to/2DpkbEs
Ender 3 Amazon: https://amzn.to/2xyJ23s
Ender 3X (glass bed version): https://amzn.to/2I7dG85
BLtouch from ANTclabs on Amazon, adding 1m extension cable is recommended: https://amzn.to/2Ozfby2
Pin 27 board (Aus eBay): https://www.ebay.com.au/itm/113099279570?ViewItem=&item=113099279570
Pin 27 board (US – as part of the TH3D filament runout sensor): https://www.th3dstudio.com/product/ezout-cr-10-filament-sensor-kit/
Pin 27 board (eBay UK/Europe): https://www.ebay.co.uk/itm/CR-10-Pin-27-Board-for-BL-Touch-Autobed-Levelling-or-filament-sensor/173458087012
Pin 27 board (eBay US/Canada): https://www.ebay.com/itm/142980057378
Pin 27 board (eBay UK shipping worldwide): https://m.ebay.co.uk/itm/Creality-Ender-3-CR-10-Pin-27-Breakout-Board-for-BL-Touch-Sensor/202399695356
TH3D Unified firmware: https://www.th3dstudio.com/knowledge-base/th3d-unified-firmware/
A guide I found handy for resources when starting my research: https://www.thingiverse.com/thing:2975949
Alternate guide without using pin27 adaptor: http://3dprintlove.com/3d-printing/adding-bltouch-to-creality-3d-printer-ender-3-for-auto-bed-leveling/
Petsfang v2 fan duct: https://www.thingiverse.com/thing:2759439/
Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au
Gearbest affiliate link (help support the channel): https://www.gearbest.com/?lkid=13807527
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#abl #ender3 #bltouch