Going to Build using the Max Metal Frame...no kit

[Aflac]

Yrs, did the connectors myself....So I have no excuses.

[Eaglezsoar]

You do not need to make excuses, you are the same as the rest of us - human and we all make mistakes but some will never admit it.
It takes courage to admit you made a mistake on a public forum - my hat is off to you!

[bradjshannon]

Yrs, did the connectors myself....So I have no excuses.

Hey, no judgment. I just connected all the wires to my board last night and thought the same thing. "Oh, I can poke my multimeter probes into those little openings." Guess I won't be relying on that!

[Aflac]

Yrs, did the connectors myself....So I have no excuses.

Hey, no judgment. I just connected all the wires to my board last night and thought the same thing. "Oh, I can poke my multimeter probes into those little openings." Guess I won't be relying on that!

That's actually the main reason I posted about it, let someone else learn from my mistakes, makes my mistakes worth more that way.

[Aflac]

I think the thing I am most happy about is getting the printer running before my Oculus Rift arrives, start a print then spend some time in VR. If i had to choose between getting the printer working and testing the new VR it would have been an interesting battle.

[Aflac]

Should I design something fancier or stick with my getto zip tied layer fan...

[bot]

What does your effector look like? I have the full size berrybot effector and made some fan holders that work with the holes.

I've attached an STL that has two parts in one -- you'll have to separate the shells using meshmixer or the like.

x3dbbfanholder.stl

(13.49 MiB) Downloaded 398 times

[Aflac]

Still need to build an enclosure for ur, but overall it's coming along nicely. The table top is held on by magnets so it's easy access to get in to work on things

[Aflac]

There is also no place that the printer actually touches the wood. It's connected to a phenolic that is good for high heat and electrical uses

[Eaglezsoar]

Aflac, what size arms did you use if you remember?

[Aflac]

Aflac, what size arms did you use if you remember?

330.77mm

[bradjshannon]

I think the thing I am most happy about is getting the printer running before my Oculus Rift arrives, start a print then spend some time in VR. If i had to choose between getting the printer working and testing the new VR it would have been an interesting battle.

Please figure out some way to integrate these technologies. It's so unnecessary that someone on the internet has to do it.

edit: VR/AR printer interface?!

holy crap-- augmented reality, so when you look at your printer it displays the uncompleted portion of a print as wireframe

[Aflac]

I think the thing I am most happy about is getting the printer running before my Oculus Rift arrives, start a print then spend some time in VR. If i had to choose between getting the printer working and testing the new VR it would have been an interesting battle.

Please figure out some way to integrate these technologies. It's so unnecessary that someone on the internet has to do it.

edit: VR/AR printer interface?!

holy crap-- augmented reality, so when you look at your printer it displays the uncompleted portion of a print as wireframe

or when you have it in your slicer it shows it sitting on the build plate so you could see how things are arranged and make sure they fit...and mostly just would look cool

[Aflac]

Ok, time for my next problem.

I have the prints printing beautifully....unless I need retraction. For some reason Emmett time it retracts it had a delay before it starts extending again, leaving a gap. Sometimes the delay is really short, sometimes it's fairly long. In a 50mm radius circle it's sometimes not extending for the first halfway around the circle. And it is not a consistent amount.

It's almost like the extruder is losing steps on the extend after the retract, after it starts again it works just fine until the next retract.

Anyone have any ideas?

[Eaglezsoar]

What is the length of retraction and speed of retraction that you are using?

[Aflac]

What is the length of retraction and speed of retraction that you are using?

I am using CURA to slice and the retraction settings i can find are only min travel combing min extrusion and z hop, i can not find anything about retraction distance nor speed. so i have no idea what the answer to that would be. I dont see anything in my config file about it either.

[Eaglezsoar]

What is the length of retraction and speed of retraction that you are using?

I am using CURA to slice and the retraction settings i can find are only min travel combing min extrusion and z hop, i can not find anything about retraction distance nor speed. so i have no idea what the answer to that would be. I dont see anything in my config file about it either.

Temporarily use a different slicer and see if that fixes the problem.
If it does perhaps there is a different version of Cura that you could use.

[mhackney]

On the Advanced Tab there is a Retraction panel near the top with Speed, Distance. Those are them.

[Eaglezsoar]

On the Advanced Tab there is a Retraction panel near the top with Speed, Distance. Those are them.

Thanks Michael.

[bradjshannon]

On the Advanced Tab there is a Retraction panel near the top with Speed, Distance. Those are them.

There may also be extra retraction stuff in the "Expert Settings" window, under the Tools menu, I think?

[Aflac]

On the Advanced Tab there is a Retraction panel near the top with Speed, Distance. Those are them.

wow, no idea how i missed that, i only looked at that tab like 40 times. but there it is right at the top. its set to 40 mm/s and 4.5mm retraction, should i try shorter and slower?

[Aflac]

i changed it to 20 and 1, its still doing it, however the distance of the gap is a lot less now.

[Eaglezsoar]

i changed it to 20 and 1, its still doing it, however the distance of the gap is a lot less now.

Not sure what the proper values would be for the Prometheus, but I would try 5 for distance and 10 for speed. If someone
is using the Prometheus would you provide the retraction settings you use.

[Aflac]

https://youtu.be/Ymelatu6GK8

[youtube]http://www.youtube.com/watch?v=Ymelatu6GK8[/youtube]

https://youtu.be/L_HBN1Pq1tM

[youtube]http://www.youtube.com/watch?v=L_HBN1Pq1tM[/youtube]



some time laps videos of some calibration prints. also ive never done video on here before, i hope it works.

[bradjshannon]

i changed it to 20 and 1, its still doing it, however the distance of the gap is a lot less now.

Not sure what the proper values would be for the Prometheus, but I would try 5 for distance and 10 for speed. If someone
is using the Prometheus would you provide the retraction settings you use.

Depends on how you built the Prometheus:

Bowden Users: Keep in mind that the maximum retract length is proportional to the length of the TZ.

The max retract length can be approximated as follows:

Max Retract Length = TZ Length (e.g. a 2mm TZ means that the maximum retract length is also 2mm)

This is an important relation for bowden users to consider. If you retract longer than the TZ, molten plastic will be pulled into the Cold-Zone and will cool, fusing to the inside of the barrel and jamming the hot end. I recommend a 2 mm max retract and a short 2 mm TZ. However, a very long bowden tube may require longer retraction. If you have a geared extruder then you may be able to get away with a longer TZ of 4mm with 4 mm retractions, even with PLA.

link