Automatic part remover / bed scraper?

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posted in Community by tjones

How many times have you woken up in the middle of the night dreaming about a device that, after a printer is complete, scrapes across the build platform to automatically clear the part and ready the printer for the next round?

I'm sure someone must have something like this, yea? Are there after-market mods for this type of thing?

9 years, 2 months ago

sd3dprinting - We make printers with autoejection and have developed after market mods to work on 3rd party printers as well. They can work continuously for weeks or even months without human interaction ; so long as sufficient material is loaded. Filament monitoring is also included to pause the print when the material does run out.

Feel free to message me for more details or a quote: david@sd3dprinting.com

9 years, 2 months ago

tjones - that sounds pretty cool! Do you have pictures or a link to the machine or the mod? I'd love to see it in action.

What's the longest one of your machines has run on its own?

9 years, 2 months ago

sd3dprinting - Our printer (Jarvis) has been discussed in detail here:
https://groups.google.com/forum/#!searchin/3dprintertipstricksreviews/jarvis/3dprintertipstricksreviews/6EmNvV8sMNo/BvTSYBo51MQJ

It can also be seen printing in our facility here: http://www.sandiegoreader.com/videos/2015/jan/28/415/

These beta models (purposely) do not show our patent pending adaptive build environment. You will note that our bed looks much different than a standard 3D printer. It is capable of non-destructive autoejection which means we don't need to ram it with anything to autonomously remove it from the build plate.

These printers are modular and therefore custom designed for an intended application. Build volume starts at 12x12x12 and goes up to 36x24x36 inches.

At this point we have not run the system longer than three days continuously because we are still working with 1kg material spools. However, the system sends an email/SMS update once the spool is exhausted so there is typically only a few minutes of downtime between the time it pauses and us feeding it new material. We have demonstrated 98%+ up-time with this considered.

We are working on a pellet based feeding system as well which would allow us to drastically extend the time between refilling the material and open up new possibilities in multi-color/multi-material printing.

9 years, 2 months ago

elpulpo - Don't tell me! The 36x24x36 printer's called Marilyn....

No?

Aw. OK then. Please yaself! :-/

9 years, 2 months ago

nyl0cke - I see you post about how cool your printers are, but I've never once seen them in action, nor have I seen any of these promised features in action either. I'm not challenging you to necessarily prove they work, I know they are all feasible, but it would be pretty cool to maybe see a time lapse of a print with the auto removal system in effect, or maybe some sort of demonstration of the fail catch feature. Maybe you have posted videos of these things working and I've just missed them. I'd just really like to see them in action.

9 years, 2 months ago

sd3dprinting - nyl0cke - this was just two posts up: http://www.sandiegoreader.com/videos/2015/jan/28/415/

We are not currently shipping these out as they are in beta, we are only accepting orders to be hosted in our Printer Farm program right now.

9 years, 2 months ago

nyl0cke - I saw that, but I only saw it sitting there. It looks cool in its own right, but why isn't it printing?

9 years, 2 months ago

sd3dprinting - It is printing at the end of the clip.

Since the time of filming the design has undergone a few updates as well. We cut the weight of the extrusion system in half and went to anti-backlash lead screws for the z gantry. We have another interview coming up in a week that will show these update as well as our new (larger) production facility.

9 years, 2 months ago

nyl0cke - Excuse me for watching something and then completely forgetting about it right afterwards. Indeed it does. Are you willing to demonstrate the cool features or are those "secret"?

9 years, 2 months ago

sd3dprinting - We've just recently started leaking information about this project on industry specific channels so I understand your skepticism. You are probably thinking "these guys are full of it; if they could do what they are claiming, there would be tons of videos posted on it all over the internet". Just bare with us while we solidify our IP positions and get through the Beta stage. Until then, I'll leak some gems to these specific forums.

Here is one of our very first tests with auto-ejection as a modification to an "off-the-shelf" printer: http://youtu.be/zK0z7DgnyMM

We have made many changes to our non-destructive autoejection sequence since this was filmed, but this should give you an idea of the basic capability. The part got to its final resting position purely off of the print g-code without any human contact. This solution has been verified on all major 3D printing materials and is included in our pending gradient-free HBP patent.

9 years, 2 months ago

raykholo - I would just put a "snow plow" in front of my extruder, wait for the glass to cool, push the print off, heat the glass, and start the next one. Less than 5 lines of gCode to make that happen.

9 years, 1 month ago

sd3dprinting - That will work for a little while, but good luck keeping your "snow plow" calibrated. That's the main issue with destructive auto-ejection. It also doesn't work well with flexible materials.

9 years, 1 month ago

raykholo - I can see how a completely flexible print might be a challenge but once the glass cools prints pop right off on their own, so it's a light push off the bed that does not require much force at all.

9 years, 1 month ago

sd3dprinting - The amount of force required to dislodge from glass is dependant on the material printed and how well calibrated the machine is. For a perfectly calibrated bed of small enough size running standard ABS or PLA you are correct. That is a limiting case for the state of 3D printing in 2015 if you ask me.

Our bed brings that same capability for printing over a dozen materials on large format beds while providing a more reliable placement method, higher success rate and elimination of maintenance concerns.

9 years, 1 month ago

cyclone - I could be wrong, but I was under the impression that Makerbot patented the part removal system idea in every way imaginable. Scapers, rolling beds and robot arms. I'd do a patent search before going too high profile with the project.

9 years ago

sd3dprinting - Already have. Everything they have patented with regards to autoejection uses a destructive method. Our method of autoejection, which we are now patenting, is nondestructive.

9 years ago

defcon3d - Hope, you have the dollars behind you to back up long drawn out litigation process? Not even mentioning all the additional time and costs involved in a utility patent or multi- patents... Most go for designs patent but that doesn't carry much weight in the real world..

Good luck, I always cheer for the underdog....

9 years ago

sd3dprinting - Ya I'm not doing this independently. We are about the same size as MBI was when they were filing their first patent applications. Once you have been running a successful and focused business for a few years and/or have raised sufficient funds, tech startups begin to to partner with reputable law firms and get access to things like deferred legal fees to deal with such things as patent applications.

9 years ago

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