Archive for deltabot 3-D printer

My 3D printer heads to the hospital

I STILL haven’t been able to enjoy my upgrades because one of the motors decided to not count all the steps. It counts them one way, but not the other.

Three hundred bucks later, the new motor doesn’t want to work. It could be firmware, or … who knows!

Accordingly, mad scientist Steve Graber took my Cerberus 3D Gigante, which he built, to his own shop where he has all the right tools and the number for tech support.

While this mystery still doesn’t have a conclusion, I hope you enjoy watching them carry this huge printer out the door ….

‘This has never happened before’ yet again ….

Since my last post I’ve gotten this much printed:

Yes, nothing. Nothing except frustration and fails.

3D print fail - Kevin CaronAfter many days and hours of troubleshooting – Steve Graber was here so many hours (15? 20?) over 5 days that I offered him our spare bedroom – he and I narrowed down the problem to a bad motor.

Yes, of the 3 motors that run the Cerberus 3D Gigante, one had decided to no longer count steps, one way only, though.

Our first, oh, dozen or so hours of troubleshooting didn’t even touch the problem, which was causing every print to thin out one one side. At first we thought the bed wasn’t level, but after several attempts at leveling it using 2 different probes, it became clear that wasn’t the problem.

Finally we heard a slight variation in the motor sound when it neared one particular side. We also remembered that the last print I’d done, the large version of my 3D printed sculpture Ruby, had printed oddly at the bottom. It wasn’t so bad that I couldn’t use the print, but I knew I’d have to account for the lopsided bottom when I printed its base. I just couldn’t get that base to print, though.

So the problem had preceded all the work and improvements I’d just spent a lot of money on.

Steve rewired the motors to see if it could be the wiring, proving that it was indeed the motor.

Well, it better be: a new one just cost $300. Steve notified the motor manufacturer, who said, “We’ve never heard of this.” (They have now.)

It’s now been a month since I’ve been able to print, but I think we’ve got it.

Nonetheless, pray for me, and the printer! And stay tuned ….

Mad scientist performs 3D printer brain transplant

mad scientist!Wouldn’t you like to see that headline in your newspaper or favorite news Website? It’d be at the top of mine, because that’s just what happened recently with my 8-foot-tall Cerberus 3D Gigante 3D printer.

The Gigante is 5 years old now, which is like 50 in 3D printing years, especially with the rapid changes in the field. I’ve been suffering through a lot of 3D print fails, and the last large-format 3D print I completed somehow printed at an angle.

Even Cerberus 3D’s Steve Graber, the mad scientist who built the printer, couldn’t figure out how that happened.

Multiple problems with chattering and fails led Steve to recommend replacing the Gigante’s brain.

We last did this 2 years ago, updating to a new Smoothie controller board, which is, in essence, the 3D printer’s brain. This time, though, he prescribed a totally new type of controller board …. Read More →

All that is old is new again: Updating 3D printers

Makerbot 3D printerIf you buy a 3D printer “off the shelf,” say a MakerBot or Lulzbot, you get what you got.

Of course, based on the number of units sold of these machines, you can assume they are of some quality. You also know the capabilities of the printer, the kind of filament it can handle, its footprint, and, well, pretty much everything about it.

And you also have, in most cases, an established company you can go back to when things get squirrelly.

But the way 3D printing is evolving, just like computers, the minute you buy it, it’s obsolete. The newer printers can handle more exotic filaments, create larger and better prints. But you have the same 3D printer.

That’s one of the advantages of having a printer that’s built by a small company or even open source ….

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3D-printed sculpture storms Tucson

A visitor to the Sculpture Tucson art show watches a Cerberus 3D 250 3D printer printing - Kevin CaronOK, maybe I went a little overboard in the headline, but I’m still really jazzed at the reception of my 3D-printed sculpture at the recent Sculpture Tucson show in, yes, Tucson, Arizona (is there another Tucson? Hmmm, I’ll have to look that up ….)

The turnout at the show was incredible. Preliminary estimates say that 4,300 people came through in just 2-1/2 days April 6 – 8.

Although the show was outside at Brandi Fenton Park, I had my Cerberus 3D 250 running the whole time. Amazingly enough, it only failed once when the wind got the best of it, but overall, it performed beautifully.

It also fascinated people. A few people who came by knew about 3D printing, but most visitors had never seen a 3D printer running before. That meant I did a lot of education, which is how it usually goes when I have the printer running at an event.

We actually apologized to the artists around us, who had to hear the spiel over and over and over again. The challenge was always explaining it like I’d never said it before, but what I would say seldom varied (“… start in CAD …” “… the filament comes down from here …” “… like a big glue gun …”) ….

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Switch cuts out 3D printing problem

3D printed table base - Kevin CaronAbout a week ago I decided to tackle a project I’ve been thinking about for a while. I have a beautiful glass tabletop and thought it would be fun to 3D print a base for it.

Fun?! I like to go into a project thinking positively, but maybe that just set me up ….

Anyway, the first day of what would be a 5-day print went fine. It was when I had to change out the 5-pound spool of PLA filament on my 8-foot-tall Cerberus 3D Gigante 3D printer that things went terribly wrong.

The print paused normally, then I switched out the spool of natural filament and loaded up the new spool. When I tried to resume the print, though, everything went haywire. The printhead swung wildly out of position, and the print was lost.

I was ready to pull my hair out! A whole $100 spool of filament and a day of 3D printing had been lost. Not to mention the frayed nerves.

Then Steve Graber, the man who built the Gigante, told me about the switch ….

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Seeing in 3D – Using 3D printing for prototyping

3D printed stem of Schubertii sculpture - Kevin CaronWhen 3D printing first became popular for more general use – it’d already been around 20 years in industrial and scientific settings – “rapid prototyping” was the buzzword you heard everywhere. (After I started working with 3D printing and especially my 8-foot-tall Cerberus 3D Gigante 3D printer, I found this hilarious – there wasn’t much rapid about it.)

While I do create sculptures using 3D printing, I also use it for protyping. It’s really important when I’m creating a sculpture in CAD and then actually building it in metal to be able to see all aspects of the form.

A great example is a sculpture I’m just beginning, Schubertii. Based on the plant by the same name, this sculpture will be 12 feet tall. Seven feet of that will be the sculpture’s “stem.”

The stem is fairly simply to look at, but creating it in metal is going to be, well, challenging. Its round edges and flowing form will require me to use a combination of tools – air shaper, English wheel, maybe even the slapper (yeah, there really is a tool called a slapper) – to get the rounded form that is the opposite of how metal comes, in flat sheets.

To get the form right, I printed the stem maquette, or model, on my Cerberus 3D 250 desktop 3D printer ….

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The mystery of the 3D print fail

Overheat screen for 3D printer - Kevin CaronIt starts out so innocently …. Doesn’t it always, especially with 3D printing!

I wanted to print something using NGen_FLEX (usually called “Ninjaflex”) rubber filament on my 8-foot-tall Cerberus 3D Gigante printer when I got a “Runaway temperature warning” (right), and the printer shut down.

I checked the graph in Simplify 3D, the combination host and slicer program I was using, and saw the temperature spiking instead of its usual gradual climb.

I shut off the 3D printer, let it cool, and tried it again. Same problem.

I printed the same file with regular PLA and had no problem.

There was only one thing to do …

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Tinker time for all ages: event turns on young and old

3D printing at Arts & Technology event in Surprise, AZ - Kevin CaronWhen you’ve done something for a while, you start to take it for granted.

There’s nothing like talking to others about 3D printing – and, best of all, showing it to them – to remind me how remarkable this technology is for many people.

Recently, my wife spoke with a woman who had never even heard of 3D printing. That’s pretty mind-blowing.

Most of the people who attended the inaugural “Technology & Art: A Tinker Time For All Ages” on Saturday, October 21 had heard of it but never seen a 3D printer in action.

They have now….

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3D Frankenstein: Gigante 3D printer gets a new brain

When I commissioned the creation of my 8-foot-tall Cerberus 3D Gigante 3D printer 3 years ago, I knew that the technology would change.

Of course, technology changes all the time, but in the fast-moving field of 3D printing, it changes as fast as you can type.

As chronicled in this blog, Cerberus 3D “mad scientist” and all-around cool guy Steve Graber and I made a lot of changes in the Gigante as we worked through the issues that arose when using the printer. Software, hardware and filament all demanded tweaking, and finally we got the Gigante running well.

There were still issues, though. The biggest was a tendency for the print to just … stop. The printer would freeze, and the computer would join it, stuck in some sort of limbo while I pulled my hair out trying to figure out why I’d just lost yet another print.

Sometimes it was simply that the computer, which is dedicated to running the Gigante, decided to update. I dealt with that by always firing up the computer well before I started printing. OK, that worked most of the time.

Finally, though, it became clear that the processor just wasn’t handling the information fast enough ….

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