Sorry for the extreme delay on updates.

Here is a link the the project which anyone can download, keep in mind that this is highly experimental and still work in progress, I plan on making several changes to this tonight and re-cut top plate tomorrow.

!! The current project files represent in no way the final product as I intend to share it. !!

 

Several changes to updated design.

• Moving Z axis motor to the bottom.
• More space without making the footprint considerably bigger, adding only a few cm to depth of the printer.
• Room for additional 2-3 toolheads.

Want to download the Fusion 360 project files, these can be viewed and downloaded here.

Preview of new top-plate.

 

I will probably change the orientation of the Z axis profile on future revisions, that said that would require some belt rearrangement, or maybe change the Z post for a 30x60 profile would do the trick. Rigidity of previous version was very stable so we'll see how it goes.

Unfortunately I burned my end mill during last cut, I did manage to salvage the top plate, though the finish is by no means as I would like, however for a prototype it does not matter.



I have wasted a lot of time trying to 3D print to some mock-up carriage objects on my old CR-10S however the hot-end thermistor is borked so could not get temps under control, so I'll be cutting some pieces out of lexan for the carriage and get it moving.

 

I will definitely add a post in the middle for belts in future revisions.

If I recall correctly E3D went with 9mm rails because of weight and precision. I don't know the weight difference between 9 and 12, but **** the 20 is heavy, and as we know it is all about keeping both friction and weight to a bare minimum, I even consider removing most of the crossbeam to reduce weight on the gantry, the rail itself is very sturdy and made of a highly hard steel.

 

Cut the sled out of aluminium, not perfectly assembled but will be replaced at a later time.