When I get this operational I will put together a build manual with high rez images. If you want more details or better images just ask. In this build process I am making changes to help in quicker builds. I am building separate components for spares and for mods. I am approaching this build as individual modules that can be removed and replaced quickly
These pictures are from the original builder and their process:
https://www.sciencedirect.com/science/article/pii/S2468067220300390
https://www.fabbaloo.com/blog/2020/9/28/open-source-high-temperature-reprap-3d-printer-announced
Today I start identifying the parts and start looking for materials. No China Build is the strategy
best print so far, as far as complexity
Turns out this part is not used in the latest turntable build
3rd attempt at this air duct. 19hour print 39 % right now
Largest part so far, uses the full bed of the longer lk1.
The 219 printer, so far it's chuggin along, quiet connected to laptop running cura, setup as Alfawise u20
Spent some time understanding the print head. The plans have a couple versions
The Rotary tool head is what we are building. It has a pellet screw assembly and also a e3d head assembly
It looks pretty complex but after looking at the inventor model it all came together
There are 2 seperate head assembles, one has a screw for pellets and the other a bowden extruder
This is the screw setup, it has a geared motor and a coupler
https://robotdigg.com/product/1604/3D-Printing-pellet-extruder-screw-and-barrel
I will detail the parts for the head build, the printing continues and today i started setting up
a plasma cutting table to cut the metal parts.
I was concerned about building this print head setup because I didn't understand the objective of having a
bowden and extruder also but it's a interesting configuration
Just finished the largest part. Fan duct. it took 37hrs. I had 2 false starts, one was an issue with the filiment breaking, I changed to brand new roll, second was the mesh type. I think i changed to cross mesh. either way am glad to have this out of the way
Today the metal frame arrived, last night i ordered all the required parts to build the rotating head.
I cut some aluminum parts today with my plasma table, I think I am having diamention issues, the software i have seetup is pretty basic, I installed a basic plasma controller on my plasma table just to get it functioning. The original controller was dated and had dated proprietary software. anyway the cuts look smaller than the plans.
I have a mpcnc router table built, might try to use that for better accuracy
Getting it dialed in
Opened the boxes today of ordered parts.
made some progress, made some mistakes. Will be documenting the build issues and additional hardware required for purchase.
I used the wrong metal on the extension, It was supposed to be 2040, this was corrected