Another printer (it is a disease, once you start collecting them...)

lol make sure you have the lady send us a picture when your on the floor and that delta is standing on top of you! JK!

 

Proof that the effector electronics and thermistor on hotend are working:

 

So, a followup.
We Did the conversion of one complete effector from the HE2xx that SeeMeCNC makes to an E3D.
We added heat sinks on all of the motors and a small fan above the extruder stepper*.
We increased the stepper drive current* to assist it in being able to actually push the filament into the extruder via the bowden.

The most recent problem was that the extruder stepper was running hot then I remembered we had the factory one dead out of the box (and naturally it was the one with the heatsinks) so the replacement had none. Added those back on and cut a hole for a vent fan directly above the extruder stepper.

Most of the steppers have a single heatsink on the back side (one photo included for an example) The extruder one has two, one on the back and one on the side




This is the E3D'ed effector, top view


Effector bottom view (even Tom Baker seems impressed, Mal -- not so much)


One of the X/Y/Z steppers for comparison


The extruder stepper and hole for fan

A 12v fan tied to P/S and on/off switch (so it runs always) is directly above that hole. Adds no real noise and does move some air.

 

A little more z-axis offset of the Global G-Code Offsets section was needed to dial it in all the way.

 

Pictures of that sweet ass delta prints ! Super glad to see she's up and cookin! Congrats!

 

Well, before the heat sinks and fan went on the extruder stepper it would have been sweet half-ass delta prints since the stepper would get hot and pretty much stop extruding half-way through a print

I'll get it back fired up this weekend and crank out some proof-of-life.

This should be the last thing needed (after having to learn repetier firmware and deltas and OctoPrint).

 

Hey @mark tomlinson love the picture of Doctor #4

 

We shall see....

 

and yes, benchy is deliberately printing very slow.

 

Delta voodoo!!!!! Love to see it printing !

 

Still going...

 

There are some obvious tuning issues on the benchy that I can see so far, but hey ... I can deal with that.

 

So Yay! First full print finished.

And for those who complain about cost and time-to-get-a-print bear in mind that this one we bought at the MakerFaire Oct 22, 2016
for $1050 (plus another $200 in spare/replacement/additional parts)...including an entirely new replacement effector that SeeMeCNC set us when troubleshooting issues (hint: not the problem) an entire replacement set of stepper motors (one died during installation -- we funded those) and an E3D hotend with extra bits to convert one of the effectors (probably not the problem either, but I like it better). And then had to build it since that was kit form.

These appear to have sorted the extruder stepper: https://www.amazon.com/gp/product/B01HSBM72W/ (well, them and some fans: https://www.amazon.com/2packs-0-15A-Brushless-Cooling-AB4010M12/dp/B01CZFUOD0) so that it no longer overheats. Some of that is on me since we jacked up the stepper current a lot to get it to overcome the back pressure in the extrusion path (long bowden tube). Could we have gone with less current? Probably, but with the extra cooling it is fine and I was tired of dealing with it. I wish their support had been more helpful as we went along, but <shrug> there you have it.

After all of that ... this is the FIRST print that can count as successfully completed. The best it managed before was 75% of a vase...everything was downhill after that.

Granted I need to go through and tweak a number of things that you can see as 'issues' with the way benchy printed (it ain't real pretty) but those are fairly straightforward things to do and the printer stayed up printing the entire time without any mechanical or electrical issues so -- win. No jams...

After addressing the tuning problems with benchy (one example is that it clearly printed too hot) we will speed it back up to normal (at least 100 mm/sec, the older v2 was only 60) and see about a 3 foot tall vase.

Patience indeed

 

YOU BEAT THE DELTA!!!!

Awesome job man!

 

Just started a long-haul (>1 day) print of a 2 foot tall vase (max is 3 foot) and cranked the temps down and the speeds up.

We will see how that turns out. The exhaust air from the fan over the extruder stepper fins got warm-ish (85 maybe) but never hot.

 

It was running at almost 50% underspeed overall before and now at just about a 10% underspeed (90 mm/sec rather than 100).

 

Also we use the WolfBite Nano* on the print bed. It works really well.It also requires heat to activate so when the bed cools it will 'let go'



*or as I call it "liquid essence of dog poop stench" because man --- it reeks

 

Hahahhahaahahaha!!! Its huge ! Well done !

 

Only thing I forgot was the ending GCode for Simplify.
Unlike Cartesian printers a HOME ALL is needed at the end to move the nozzle away from the print.