Today’s Prints: – Owl Buttons, and Filament Spool Clips

Browsing around Thingiverse, I found some owl-face buttons. My mother wanted some for a project, so I printed these.OLYMPUS DIGITAL CAMERA

They are about 1.3″ in diameter.

I also downloaded and printed some handy clips for the filament spools, for when the spool is not in use. Up to now I’ve been using masking tape to keep the reels from unwinding. Now I have these clips. I printed three for the Octave reels, (since I have three of those) and one Afinia reel clip.

OLYMPUS DIGITAL CAMERA

My First Invention – A Spool Holder for both Afinia and Octave Spools

The Octave Universal Spool Holder is a nice idea. Replace the Afinia spool holder (which has the filament feeder attached) with an adapter that allows you to slide in holders for any reel you want, once you have printed that holder.

Well, I printed a holder for the two types of spools I currently have: Afinia; and Octave.

But then I thought, why swap those out? I can probably design one to hold both.

Since the Octave Spool Holder is wider, but has a smaller hole, and the Afinia spool is less wide but has a larger hole, I simply took the Octave holder, remodeled it from scratch, and inset a small area that sinks lower into the shaft.

My Afinia/Octave Spool Holder

Now, if the Octave spool is on, it will reach out to the end of the holder and be fine. The end tab will force the spool to stay close to the base, so it stays on the outer circular tube.

But if you use an Afinia spool instead, you can let it slip into the divot and it will stay there too.

So now, when I swap out my Afinia filament with my Octave filament, I won’t have to swap out the spool holder.

I printed one out earlier, and found that some of the edges had to move, so I did a quick move of some vertices in my modeling program and reprinted it.

Here is the finished product. It is branded with my name, and at the bottom, the words Afinia and Octave to indicate this works with both reel types. It is sitting on an Amazon charger just for posing.

OLYMPUS DIGITAL CAMERA

Here you see how the wider Octave reel would fit on the holder:

OLYMPUS DIGITAL CAMERA

And here you see how the slimmer Afinia reel would slip down into the smaller groove:

OLYMPUS DIGITAL CAMERA

As I get reels from different companies, I may be able to adapt this piece to be even more multi-functional.

Bizarre Happenings with the Printer

After finishing the two cylindrical pieces, (the body tube and the nose cone) I then printed the bottom section of the TB3 rocket.

It printed well. Then, when the print job was finished, something bizarre happened.

Instead of dropping the bed it acted like it was still printing a previous job. The hot extruder head pushed itself into the plastic and the printer clicked a lot and before a couple of seconds had passed, I reached back and shut the thing off.

No major damage, but I was weirded out.

Skip to 8:30. (Sorry the video is so long. I no longer have any video editing software that works.)

I e-mailed Afinia and they replied very quickly, saying that it could be a corruption in the memory card, a fragmented file, or even a bad .STL file that I tried to print.

I printed a second test item the next day, hoping it was a one-off issue, but when this 1″ head model had printed, I got a similar result. It finished, but instead of lowering the bed, it kept printing. And from what it printed, I assume the job it’s stuck on is the job I printed a couple of days before – the two cylindrical rocket shapes.

Afinia says they have a new version of the printing software that supposedly fixes this particular bug, and in the mean time they informed me I could remove the Micro SD card and format it myself, and that may work.

So I unscrewed the base of the printer and removed the Micro SD and put it in the multi-memory-card reader in my computer and did a quick format and put it back.

Can’t do a test print at the moment, getting ready to go out to dinner. But I will try tonight and post.

Update: When I got back from dinner I printed a Lego piece. It ended successfully, with the head resetting normally. Looks like the format of the Micro SD card worked. Whew!

TB3 Rocket Test Print – First Printing in Red!

I spent last night scaling and altering my TB3 model to cut it into individually printable parts, with connecting holes and pegs, for a test print of the full TB3 rocket. When scaled, I ensured that no single part I intended to print would be taller than 5″. A bit less, in fact. And when completed, the full model should stand about 15″ in height.

I printed these pieces in white, so I used the premium white filament that came with the Afinia printer.

Docking Ring and Vane Upper Ring

Then, when these were printed I withdrew the white plastic, and then attached the Universal Reel Kit and Filament Holder, adding the tubing that came with the Afinia. Then when I had the new assembly attached, I printed a very tiny object just to ensure the filament still flowed properly.

Then I switched the reel holder to the Octave holder and began to prepare to print in red for the first time.

I have to say the first part of this was highly frustrating. The Octave spool was wrapped in a cling-wrap plastic to keep the filament from unwinding. But the filament and the plastic had fused, and I could not remove the plastic wrap cleanly. After some considerable time trying to remove all the bits of shredded plastic, I gave up and just spooled some of the filament off until I had cleared the last of the wrap.

Note: I e-mailed Octave about this and within an hour they had replied with an amazing letter saying they were going to change the way the filament was shipped, and apologized, and offered to make amends. I was very impressed with their Customer Service.

Once I had cleared the reel of fused wrap, however, the printing went ahead apace.

I printed the nose cone and the neck section of the rocket in red. I printed this at 2mm thickness rather than the finest 1.5mm because there was not a lot of vertical detail, and it sped it up. (This is a test print after all.) I printed it in Normal mode.

Neck Section and Nose Cone next to the Docking Ring and Upper Vane Ring

When printing with the lower quality red (not a Premium quality filament) there was fine spider-web-like filament stretched between the two pieces as they printed but only in two or three places. It printed fairly cleanly.

Here you see the body sections mounted onto the rings.

Rings Attached

And here is the first four sections of the rocket assembled. These are just placed right now. No glue. I intend to glue the rocket together later. (I may also think about coming up with an interlocking connection mechanism that won’t require glue, but that’s much later.)

First Four Pieces

And as a reminder, here is the 3D model, so you can clearly see where this is headed.

TB3 Render

I decided that the text on the rocket body won’t be a part of this project, not yet anyway, so I printed it without.

Printing Printer Parts – The Afinia Spool Holder & The Filament Feed Mechanism

The one thing I noticed when printing the Afinia spool holder is that the blue tape can cause a large flat print area to lift off the tape before printing, and this can warp the object. However, I also noticed when the thing was printed, that my printer is off calibration vertically. There is a calibration object and steps to fix this, but I haven’t done that yet. I was just basically putting the printer through its paces, and truthfully, the Afinia spool holder doesn’t need to be perfectly vertical to work.

OLYMPUS DIGITAL CAMERA

^ The Afinia Spool Holder hot off the presses.

OLYMPUS DIGITAL CAMERA

^ The Afinia Spool Holder cleaned up.

Note: During the printing of the Afinia reel holder, I came up with a way to do a single holder that should be able to hold either the Afinia reel or an Octave reel without changing it out. I’ll talk more about that later as I design it.

So next was the Filament Feed Mechanism. Two pieces. The first is a bracket that screws to the Afinia printer side replacing the current Afinia spool holder which has its own Filment feeder. This won’t be there when the Universal Adapter Assembly is attached, so Octave provides a Filament Feed Mechanism has to be attached to make up for it.

I printed the two pieces in one single run and it went perfectly using Fast mode and .25mm layers. But I found out something on cleanup. You really have to think about your support material.

I printed the Stalk Nipple so that the small groove that takes the filament (and feeder tube) is at the top. This was perhaps not the smartest thing to do because that meant for it to print a hollow cylinder inside (to fit over the base’s shaft) it had to print support material inside the hole. Oooops. Hard to clean out, and harder to smooth out. So it fits too snugly.

OLYMPUS DIGITAL CAMERA

I then printed another version (using Normal mode instead of Fast) and I hope that printing it upside down may fill the slot with some support (easier to clean) but leave the inner shaft cylinder completely material-free. Funny enough, when it was done there was still material in the shaft hole. Oh well… It turns out the first one fit better, so I used that one. I had to file out the slot a bit to fit the filament smoothly so it wouldn’t kink while moving through.

Addendum:

I just noticed something not so great. There is a small tab underneath the fan on the print head housing, and the tab is attached to a shaft that comes from the housing under the fan. This is snapped. Probably happened during assembly. The printer has been working fine, but I saw this piece drooping. I e-mailed Afinia and they sent me out a file to – get this – print the entire fan attachment assembly!

They are attempting to repair my Afinia H-Series printer via e-mail!!! – I mean come on! How awesome is that?

So I printed it. It had a lot of support material because of its shape. And the handle didn’t print well. The little tab that rotates the fan baffle.

OLYMPUS DIGITAL CAMERA

But check this out.

OLYMPUS DIGITAL CAMERA

OLYMPUS DIGITAL CAMERA

OLYMPUS DIGITAL CAMERA

The tab is a rotation handle, and the shaft, printed in one go, allows this wind baffle to be rotated up and down.

Printing the Octave Universal Spool Adapter

As I posted below, in order to use other sized filament spools, I will have to use a different spool holder than the one supplied with the Afinia printer.

This is the result of 3 hours of printing on fine with medium internal structure.

OLYMPUS DIGITAL CAMERA

I probably could have printed this in Fast mode or using a thicker extrusion, but I did it the finest way, and it took 3 hours. And the base of it warped during printing. When I pulled it off the bed, the rafting had already lifted off the blue tape.

Cleaning it was difficult because the object has support material on bottom because there is a raised area, allowing the adapter to fit around the arm of the printer.

Looking at the model now, I realize that if I had printed it upright instead of flat, I could have done it with no support material except in the screw holes. I’ll probably print another one later to test this theory.

But the hardest part was the two grooves that had to print on the sides. I managed to get all of the material out, using various tools.

Final result:

OLYMPUS DIGITAL CAMERA

Tomorrow I will print the Octave reel holder and the Afinia reel holder because those are the two I need at the moment. Later I will print the rest of the kit.

I think I will print directly on the perfboard, and use Fast mode and use a thicker extrusion. I don’t think I need the best and slowest print quality to print utilitarian parts.

And I just thought of something cool. I think I can create an adapter that will work with both the Afinia and Octave reels on one holder. More on that later.

Here It Gets A Little Meta… Printing Parts for the Printer

When I bought the Afinia H Printer I bought it from USB Copiers, as a bundle with the printer, three extra spools of (Octave) filament in my color choices (Red, Yellow, Black), a set of chisel tools for cleanup, and a head temperature switch (to lower the head temp for the lower-temperature filament, which Afinia says isn’t really necessary. Besides, installing the switch will void the warranty.)

Here’s the thing. The spools of filament Octave makes are much wider than the spool that came with the printer. But the spool holder that came with the printer can only fit the thinner spools.

Here’s where it gets a little meta… I went to the Octave site and found that to fit their spools (and others) I could simply download and print several files that will print new spool holders that you just screw into the printer using the current screws.

The system involves screwing in a universal adapter piece, and then you can just slide in various different spool holders to suit the spool you wish to use.

And with this, you download a new feed system, since the current filament feed holder is a part of the Afinia spool holder.

Weird, right? I can print parts for the printer that’s printing the parts.

Weirder, some models even allow upgrades by swapping out gears and other actual moving parts with new parts printed on the same printer. It’s getting weird out here, folks.

Third Print – Testing For Another Future Project

Afinia’s print software allows you to print the interior of objects with a grid-work lattice that strengthens the model, but also allows it to print nicely for any shape. It saves material over a completely solid interior, and you still get the strength of the material.

Last night I decided to try Afinia’s new “Shell” feature which prints your model with nothing in the center at all. I knew this would only work on certain models.

First, here’s the 3D model I’m trying to test print. I’m test-printing, meaning I’m not separating out colors or modeling it in nicely connecting pieces, I’m just printing parts of the model.

tb3-concept-test-render-500

It’s a rocket I designed to be an updated Thunderbird 3 from the Gerry Anderson TV series Thunderbirds. (This model was done in the late 1990s and was later used on the cover of a comic book without my permission, but I later got credit for.) I wanted to update the Thunderbird ship to use no straight lines. Everything is curved, with the exception of the rods sticking up out of the engines.

Here’s the section I wanted to test-print, as seen in the Afinia printing program. The nose cone with the docking neck ring as a single piece. (This would be two pieces in a later, more complete model.)

tb3-nose-cone-section-ready

Here’s what happened when I tried the Shell option. It got to the part in the model where the neck ring has a ledge, and it had nothing to print on, so it extruded out a bunch of plastic hair into the cup shape you see here. Stupidly I removed the junk extrusion before thinking to snap this picture.

tb3-nose-cone-shell-test

So I printed it again with normal (large) interior lattice.

tb3-nose-cone-regular-test

And here is the final product. It’s actually rather nice. But it shows me my model’s circular resolution needs to be brought up quite a bit. It was modeled for a render, not a physical model.

OLYMPUS DIGITAL CAMERA

Second Print – A Test for a Future Project

My first test-print that Afinia volunteered to print for me was of a Space:1999 Moon Buggy, which someone else modeled. I began working on a 3D model of my own from scratch.

Here it is partly done. This is just the body. There are wheels, seats, trim, mirrors, etc. yet to be done. But I wanted to see what my Afinia could do with this rough early version.

Amphi-cat Rough 3D Model

At the scale I chose, which should result in a 2″ long body, the print should take about an hour and a half and is smaller than I intend it to be, so I’m not sure how detail is going to look. Not that there is any real detail on this piece at the moment. That will get added later.

I’m videotaping the print in several segments (1.5 hours is too long). I hope to edit that together and put that up later in a post of time-lapse print runs.

The real model won’t be printed solid like this. Since you can see from the above model that there is a significant overhang above where the wheels go, the printer has to print support material so when it prints that first overhanging layer, it has something to stand on.

The final model will be cut in half at the mid-body line (sharp edge in the photo) and the bottom half flipped upside down. This way it can be printed with virtually no support material except for the leg cavity where the driver would sit. Careful splitting of the model will be required. And the trim (not shown here) is a rubber bumper that covers the sharp line mid-body, that will be printed separately, as will the seats and other small bits, which will, like a model-kit, be glued into place, or I can create snap joints.

The final model, like the early version Afinia sent me, will be printed in yellow, and the wheels, seats, etc, in black.

And here is the final result. This took just under a couple of hours on the first morning with the printer.

Amphi-cat printing

^ Fresh off the print bed. Rafting attached to the blue tape.

Amphi-cat with Support Material

^ Front 3/4 view of the model, just two inches in length, with the support buttresses in clear view. Later I will trim that support material and show the final product.

Amphi-cat from behind showing the rear vents

^ Due to the translucency of this white ABS filament, you can clearly see the louvered vents at the rear. Even at this tiny size (this will eventually print at 5″ in length) those vents printed very nicely!

For future print runs, I hope to set up a web-cam with software that will shoot at a frame every few seconds, which will make printing videos easy to watch because the print will come together rather fast before your eyes.

Here is the object after removing support material and doing some cleaning:

Amphi-cat cleaned - Front
Amphi-cat cleaned - Three-quarter view
Amphi-cat cleaned - Back
Amphi-cat cleaned - Bottom

And He’s OFF! First Print!

Eager day as I hit Refresh on the UPS Tracking page a buzillion times… by the time I got home at about 6:30 there was still no printer at my door. Took Charlotte to Music Lessons, got some groceries, filled up on gas, and when I got home, there was a box on my doorstep!

afinia-box

I took it inside and began opening it.

It contains a box of accessories, a reel of white filament, and the printer, plus paperwork.

The “Unpackaging” sheet showed how to remove the two shipping clips and the rest, and the “Installing” sheet showed how to attach the spool holder, and how to feed the filament into the head and calibrate the nozzle to within .2mm of the print plate.

afinia-set-up

I then boldly selected an object I downloaded from Thingiverse, and scaled it down to about 1 inch in height (for a very fast print) and set the print preferences (to fine) and hit Print!

And I watched the action. I took several video segments of the 22 minute print, which I hope to edit together at some point.

But here is what it looked like part-way printed.

afinia-printing-dalek-first-print

And here is the final result after the removal of some support material and some X-Acto knife fine cleaning.

first-print-dalek-one-inch

Keep in mind that this is my first print, and the object has a lot of modeled detail, but I printed it at only one inch in height. So the detail that’s there is actually quite good!

I got the package at about 8:30pm. Opening it (carefully, methodically) and getting it set up to print, selecting a print object, upgrading the software (I had installed the software earlier to get familiar with it) scaling the object, hitting Print to cleaning, it was done by 10:15pm.

The print took about 22 minutes. Larger objects will take 4 or more hours, depending on size of course.

It is now the next morning. It’s 7:04am and I just set it going to print a very early version of an Amphi-Cat ATV (used in the TV show Space:1999) that I modeled in Maya. I have a ways to go before the model is really ready, but I wanted to see what it would do with this version in one solid body piece. Will show that later.