33 hour print… Successful! Think I can say my extruder issues are resolved.
Why was something like that 33 hours though? Wow. Dense infill? Super low layer heights?
@ThantiK , right on the head on both points good sir. The part is quite larger than the pics let on too. A bit longer than my 
Mmmmmmm I don’t agree with the statement that Delta mechanics are horrible. I prefer them to Cartesian for sure. Both have their pros and cons @shauki
@kenneth_rooks I build them for a living. They’re inferior to cartesians in almost every possible manner. 
The only benefit a delta has over a cartesian, is possibly a lower parts count, and that doesn’t make up for the faults.
They’re less tolerant of dimensional variation of any/all parts, losing any registration at all results in a loss of registration in all axis, power is required to maintain registration of the end effector, delta end effector and geometry limits size of toolheads you can utilize, effectively limits you to bowden-only designs or wasting 50mm+ under the end effector to mount anything comparable. Geometry of a Delta will always take up 2x the space of a competing cartesian machine, wasting far more room per build volume, they’re far more difficult to calibrate correctly, they waste a ton of CPU cycles for the extra calculation required and thus have a slower top speed cpu for cpu…just all around they’re worse.
Not trolling, but I couldn’t help myself with the pic. I have both a delta and coreXY: I use the coreXY for ‘detail work’ with a .4mm nozzle, and my delta for ‘big stuff’ using a 1.2mm nozzle. So far that combo works pretty well 
@ThantiK tomorrow I’ll see if I can find some counter points to your arguments, but I can agree with some if this
@ThantiK Almost true, but there are always pros and cons 
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On delta only toolhead is moving and bed is static - absolutelly great when you want to use under bed piezo bed leveling. Also your print is not moving - it is another benefit in some circumstences.
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Kinematics of delta is faster than on cartesian.
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Delta needs only one stepper motor per axis.
There are many other aspects and every type of machine have own PROS and CONS 
@Jakub_Stajner Kinematics of the Delta are not inherently faster than a cartesian. Cross-bar designs like the Ultimaker can move just as fast.
And cartesians also only need 1 stepper motor per axis. Why would you think otherwise?
The only point you’ve made is the bed being static for piezo bed leveling, but I have a perfect counter point to that – I don’t need ANY kind of auto bed leveling on a cartesian because it can be properly trammed.
I have multiple deltas and multiple Cartesians. The main benefit to deltas (aside from looking cool) is that you have three identical drivetrains, which reduces UNIQUE parts count and total design effort. A crane-style cartesian printer like a Bukito has more or less the same total parts count but more unique parts.
Yes, deltas are a pain to calibrate – I personally don’t recommend anybody ever build a delta without a Z probe and autocalibration routine anymore. With Cartesian / coreXY type printers, all you need to build a good and accurate machine is a flat table to build the frame, tape measure to check diagonals, and some screws to level the bed.
No, deltas are NOT inherently faster than Cartesians. They can, if designed correctly, move very fast near bed center but are MUCH SLOWER when you get out near the edges of the reachable area. This is move-direction-dependent and can produce unreliable results if people don’t restrict bed-center motions to suit bed-edge limits. A radial delta move with an arm nearly horizontal requires the motor to move ~3x faster than the end-effector, so you very quickly run into motor RPM limit issues.
Deltas are inherently less precise/accurate than a Cartesian printer of the same quality of design and construction. They have inconsistent XY resolution through the build area and are prone to all sorts of skew and scale errors based on the precision of the build hardware and calibration. If nothing else, the Z resolution on deltas is crap compared to a Cartesian Z screw stage.
I love my deltas, but @ThantiK is right, they’re inferior in almost every practical way.
First, note that the printer @kenneth_rooks built looks to be using wooden arms and a direct drive extruder. Should be able to generate good, accurate prints (with less trouble than a Bowden setup). Perfectly reasonable set of trade-offs if you are not trying to push speed.
As demonstrated by good, accurate prints (which is cool).
I do want to push speed, and really liked the elegance of delta designs, until started thinking about multiple extrusion, and potential sources of error as the delta’s head moves in a volume (rather than in a plane). Started to look much less elegant. 
not sure where to enter this convo. I’ve owned both types of printers, and gotten the same quality out of both with the same amount of effort so i can’t really speak to the comments where others in this post say that deltas are less accurate and the such. I can only speak from personal experience and from that i can conclude that Deltas kooler than Cartesian machines…
@kenneth_rooks Some of us (the veterans who built/designed their own machines from scratch) moved beyond the realm of reality and into the realm of perfecting machines.
In reality, even most machines we would consider sub-par, is going to be amazing for most people and generally perfectly adequate for the things people want to do with them.
If you want to compare a purchased delta kit with a Z-probe and known-good calibration dimensions to an Anet A8 i3 type Cartesian, sure, I’ll take the delta. There are lots of really good deltas and lots of really mediocre Cartesians.
If you want to design and build your own custom machine and have it spit out kick-ass prints from the first time it powers up… you’re gonna want a CoreXY or Ultimaker gantry or something like that.
I’ve designed two deltas (and bought a third) because they’re fun and interesting, not because of their performance. And I print all my delta parts on my Cartesians 
@ThantiK clearly my machine was built from scratch and has custom designed components… Given the caveats guvey by u and @Ryan_Carlyle , then I can agree, otherwise gentleman… #deltasforlife.






