My 2nd Davinci 3D printer had an issue that I didn't see on my first one. It was shifting the prints during the build. At first I thought maybe it was the software file, but the same file built fine on my original machine. Everything pointed to a defective machine and we considered taking it back. But a little bit of investigation into the issue led to a discovery that the print bed was loose.
As the video above shows, the glass on top of the heated bed was loose and could move around in its frame. This allows the print to shift as the extruder moved around. When the plastic is extruded, it sticks to the previous layer and as it moves, it would pull the print along and the loose base would move with it. This made for some really ugly prints. The bearing on the lower part of the base frame was also loose in its socket. All this caused a shifting print bed and the prints showed the crappy results.
I made a few crude fixes to test out the theory that the loose bed was the culprit. To start I jammed an Exacto blade between the loose bearing and its mount. The to secure the glass top over the heated bed, I squeezed folded sandpaper between the edge of the glass and its frame. As amazingly crude as the fix was, it worked excellent. In fact the sandpaper is still in place and running well. I used epoxy to hold a broken piece of the exacto blade in place as a more permanent bearing brace. Watch the video to see more detail on this issue. Maybe it will help others who are having this issue with their Davinci.
Advertise here for only $25 per month. 170x50 pixel add with graphics (similar to Howtronics above).
Contact us at our contact form for more detail.
Visit previous blog posts in the archives below.
Chuck has been programming with PIC Microcontrollers since there were only five devices. Now there are over 700 and growing. He also has a lot of fun 3D printing designs using his Davinci 3D printer and TinkerCad software. In this series of blog posts and occasional videos on his YouTube Channel he tries to help you get started with electronics and 3D printing.
- Chuck's Blog
- YouTube Channel
- About Chuck
- 3D Printing
- Getting Started with PICs
- Build Your Own PICKit 2
- CHIPAXE Breadboard Modules
- Understanding Hex Files
- Newsletter Archive
- Retired Designs
- Kickstarter Projects
- Great Cow Basic Site
- Buy Hardware
- Links I Recommend