After several months of testing I've decided to share my modification of Creality Ender-3 with you. Main idea was to make very silent, efficient and aesthetically looking printer, so this mod has many features:
Case designed to handle:
- MKS Gen L Mainboard with TMC2208 drivers (should be compatible with BigTreeTech SKR versions 1.1 - 1.3 too)
- Raspberry Pi 3 A+
- Two DC-DC Step-Down converters (one for fans, the other for Raspberry Pi)
- SD-Card reader
- Two fans 6010
Camera mount for 'Waveshare Camera HD D OV5647'
'Squash ball' low-profile feet (they do their job much better than motor-dampers in my opinion, especially if your printer stands on 'IKEA table'). Soft 'double yellow dot' balls are suggested to obtain best results.
- Bed's insulation holder with custom bed handle
Devil Design PETG
- First of all - combining all of these parts can be difficult. If you do not have experience in mechanical / electrical work, this may not be the best choice for you.
- You will need set of various M3 screws (countersunk type mostly) to mount the case and electronics together. Holes in design are tight enough to hold screws directly in the plastic, but they can be of course reinforced by nuts if needed. I've prepared spacer (m3_screw_spacer.stl) to help joining m3 screw, case, electronic and the m3 nut together. Simply scale it in Z axis to create spacer of the height you need.
- Feet are connected to profiles using M4 T-nuts.
- Camera head uses 4x M2.5 screws.
- Instead two fans, only one can be mounted. The second fan hole can be covered with 'fan_6010_cover.stl'. Anyway I do not recommend this solution if you want to provide the best airflow.
- All photos of electronics needed to perform this modification are attached to the .zip file.
- When connecting SD-Card reader to MKS gen L - double check the wirings. It is needed do change the order of every single wire in the plug.
- I have chosen LM2596S (3A max) DC-DC converter to power the fans and XL4005 (5A max) for Raspberry Pi 3 A+. They are mounted one above the other.
- There is not prepared USB output in the housing. I think it is useless, when you join the MKS Gen L with Raspberry by USB cable permanently. All firmware updates can be now performed wirelessly thanks to Octoprint installed on your Raspberry Pi.
I am not responsible for any possible damage to your printer, caused by improper assembly of all these parts. You do it at your own risk.