mtf.xl 2.0 diamond

Ok, mechanical and movement segment of this metaframe.xl upgrade is pretty much complete. Firmwire is still in progress but i will keep you posted. First lets see full blown two major segments of this upgrade.

metaframe.eu xl 2.0
metaframe.eu xl 2.0

Print heated surface has grown to 42 cm diameter and is made of two melted toughened glass segments with nich wire on kapton tape. Also visible here are diamond hot end with custom adapter to accept default heat shield which comes with diamond. Print bed has easy leveling in three points and thic whole configuration is made for three 1.75mm filaments of your choice.

delta 3d printer meta.frame.xl v2.0
mtf.xl v2.0 with diamond triple hot end extrusion

Also horizontal beam tension is added and it dampens all of movement of top side. It had to be done since we added two more kilograms of spools and also motors for triple extrusion. Whole actuator hot end is much more stable and leveled than with any extrude combination i used before.

side view mtf.xl 2.0 diamond
side view mtf.xl 2.0 diamond
view mtf.xl 2.0 diamond bottom
view mtf.xl 2.0 diamond bottom
top view mtf.xl 2.0 diamond
top view mtf.xl 2.0 diamond

So this is top view and this space thingy is actually placeholder for filter since ventilation is vertical so lots of dust and plastic particles find their way into vents. So this was mechanical part, movement and extrusion is done using mega2560 / ramps 1.4 / extruder expander combination and all is left to do is some firmwire thingies to mix colors or support PVA material. Will keep you posted.

mtf.xl 1.8 slider upgrade

Since actuator segment was undergoing major changes i managed to spot few weaknesses in slider/carriage segments so i made this new, simpler and more sturdy sliders to try them on both machines since flaws i spotted in version one would appear for sure, so why wait when you can, which is major advantage of this business, always make things better.

So here it is mtf.xl 1.8 in full glory:

delta 3d printer meta.frame.xl v2.0
mtf.xl v2.0 with diamond triple hot end extrusion

and here are slider/carriage delta combination on metaframe.eu xl 1.8:

mtf.xl.1.8.new .slider side view
mtf.xl.1.8.new.slider

This will provide me with more stable movement when mtf.xl 2.0 gets its diamond upgrade next week. Stay tuned for .stl files and more information.

mtf.xl 1.5 ceramic voyages

Testing ceramics hot end segment to avoid usage of ptfe tubes inside of heat sink above heater. Unfortunately it turned out that even at low 185ºC extrusion temperatures pla tends to stick to it for some reason, like it enjoys the contact with ceramics. It managed to work a bit but not very reliable, tested with 1.75 and 3 mm PLA filaments.

xl.1.5 ceramic hotend
version 1.5 ceramics experiment

Big thanks goes to mr. Ivan Gloc from 3dforum.com.hr for providing this interesting part. This was short lived experiment since there was no time to loose. My best guess is there is very high resistance when two materials meet as opposed to slick ptfe. Next up are slider modifications and upgrade on v1.8.