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Ask Hackaday: Solutions, Or Distractions?

The “Long Dark” is upon us, at least for those who live north of the equator, and while it’s all pre-holiday bustle, pretty lights, and the magical first snow of the season now, soon the harsh reality of slushy feet, filthy cars, and not seeing the sun for weeks on end will set in. And when it does, it pays to have something to occupy idle mind and hands alike, a project that’s complicated enough to make completing even part of it feel like an accomplishment.

But this time of year, when daylight lasts barely as long as a good night’s sleep, you’ve got to pick your projects carefully, lest your winter project remain incomplete when the weather finally warms and thoughts turn to other matters. For me, at least, that means being realistic about inevitabilities such as competition from the day job, family stuff, and the dreaded “scope creep.”

It’s that last one that I’m particularly concerned with this year, because it has the greatest potential to delay this project into spring or even — forbid it! — summer. And that means I need to be on the ball about what the project actually is, and to avoid the temptation to fall into any rabbit holes that, while potentially interesting and perhaps even profitable, will only make it harder to get things done.

Continue reading “Ask Hackaday: Solutions, Or Distractions?”

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The Saga Of Hacking A Bambu X1 Carbon

Bambu Labs make indisputably excellent printers. However, that excellence comes at the cost of freedom. After a firmware release earlier this year, Bambu printers could only work with Bambu’s own slicer. For [Proper Printing], this was unacceptable, so printer modification was in order. 

First on the plate was the pesky Bambu Labs nozzle. They are a pain to replace, and specialty sizes like 1.8mm are nonexistent. To remedy this flaw, a Bambu Labs compatible heat sink, an E3D V6 ring heater, and a heat break assembly are required. The ring heater was needed for clearance with the stock Bambu shroud. With the help of a 3D-printed jig, fresh holes were cut and tapped into the heat sink to make room for the E3D heat break. Some crimping to salvaged connectors and a bit of filing on the heat sink for wire routing, and Bob’s your uncle!

Continue reading “The Saga Of Hacking A Bambu X1 Carbon”

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Non-Planar Fuzzy Skin Textures Improved, Plus A Paint-On Interface

If you’ve wanted to get in on the “fuzzy skin” action with 3D printing but held off because you didn’t want to fiddle with slicer post-processing, you need to check out the paint-on fuzzy skin generator detailed in the video below.

For those who haven’t had the pleasure, fuzzy skin is a texture that can be applied to the outer layers of a 3D print to add a little visual interest and make layer lines a little less obvious. Most slicers have it as an option, but limit the wiggling action of the print head needed to achieve it to the XY plane. Recently, [TenTech] released post-processing scripts for three popular slicers that enable non-planar fuzzy skin by wiggling the print head in the Z-axis, allowing you to texture upward-facing surfaces.

The first half of the video below goes through [TenTech]’s updates to that work that resulted in a single script that can be used with any of the slicers. That’s a pretty neat trick by itself, but not content to rest on his laurels, he decided to make applying a fuzzy skin texture to any aspect of a print easier through a WYSIWYG tool. All you have to do is open the slicer’s multi-material view and paint the areas of the print you want fuzzed. The demo print in the video is a hand grip with fuzzy skin applied to the surfaces that the fingers and palm will touch, along with a little bit on the top for good measure. The print looks fantastic with the texture, and we can see all sorts of possibilities for something like this.

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3D Printer Swaps Build Plates To Automate Print Jobs

[Andre Me] has long-standing interest in automating 3D print jobs, and his latest project is automating build plate changes on the Bambu A1 Mini.

ImageHere’s how it works: each build plate gets a sort of “shoe” affixed to it, with which attachments on the printer itself physically interact when loading new plates and removing filled ones.

When a print job is finished, custom G-code causes an attachment on the printer to wedge itself under the build plate and peel it off until it is freed from the magnetic bed, after which the finished plate can be pushed towards the front. A stack of fresh build plates is behind the printer, and the printer slips a new one from the bottom when needed. Again, since the printer’s bed is magnetic, all one has to do is get the new plate to reliably line up and the magnetic attraction does the rest.

Some methods of automating print jobs rely on ejecting the finished parts and others swap the print beds. [Andre]’s is the latter type and we do really like how few moving parts are involved, although the resulting system has the drawback of requiring considerably more table space than just the printer itself. Still, it’s not at all a bad trade-off.

Watch it in action in the two videos embedded below. The first shows a time-lapse of loading and ejecting over 100 build plates in a row, and the second shows the whole system in action printing bowls in different colors. Continue reading “3D Printer Swaps Build Plates To Automate Print Jobs”

Art of 3D printer in the middle of printing a Hackaday Jolly Wrencher logo

3D Printering: Speed Is So Hot Right Now

Speed in 3D printing hasn’t been super important to everyone. Certainly, users value speed. But some value quality even more highly, and if gaining quality means giving up speed, then so be it. That’s more or less how things stood for a while, but all things change.

The landscape of filament-based 3D printing over the past year or so has made one thing clear: the market’s gotten a taste of speed, and what was once the domain of enthusiasts installing and configuring custom firmware is now a baseline people will increasingly expect. After all, who doesn’t want faster prints if one doesn’t have to sacrifice quality in the process?

Speed vs. Quality: No Longer a Tradeoff

Historically, any meaningful increase in printing speed risked compromising quality. Increasing print speed can introduce artifacts like ringing or ghosting, as well as other issues. Printing faster can also highlight mechanical limitations or shortcomings that may not have been a problem at lower speeds. These issues can’t all be resolved by tightening some screws or following a calibration process.

The usual way to get into higher speed printing has been to install something like Klipper, and put the necessary work into configuring and calibrating for best results. Not everyone who prints wishes to go this route. In 3D printing there are always those more interested in the end result than in pushing the limits of the machine itself. For those folks, the benefits of speedy printing have generally come at too high a cost.

That’s no longer the case. One can now buy a printer that effectively self-calibrates, offers noticeably increased printing speeds over any earlier style machines, and does it at a reasonable price.

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Bambu Lab To Allow Installing Open Firmware After Signing Waiver

On January 10th Bambu Lab published a blog post in which they address the issue of installing custom firmware on your Bambu Lab X1 3D printer. This comes hot on the heels of a number of YouTube channels for the first time showing off the X1Plus firmware that a number of X1 users have been working on as an open source alternative to the closed, proprietary firmware. Per the Bambu Lab blog post, there is good and bad news for those wanting to use X1Plus and similar projects that may pop up in the future.

After Bambu Lab consulted with the people behind X1Plus it was decided that X1 users would be provided with the opportunity to install such firmware without complaints from Bambu Lab. They would however have to sign a waiver that declares that they agree to relinquish their rights to warranty and support with the printer. Although some details are left somewhat vague in the blog post, it appears that after signing this waiver, and with the target X1 printer known to Bambu Lab, it will have a special firmware update (‘Firmware R’) made available for it.

This special firmware then allows for third-party firmware to be installed, with the ability to revert to OEM firmware later on. The original exploit in pre-v1.7.1 firmware will also no longer be used by X1Plus. Hopefully Bambu Lab will soon clarify the remaining questions, as reading the Reddit discussion on the blog post makes it clear that many statements can be interpreted in a variety of ways, including whether or not this ‘Firmware R’ is a one-time offer only, or will remain available forever.

It’s not the first time we’ve seen a 3D printer manufacturer give users this sort of firmware ultimatum. Back in 2019 Prusa added a physical “appendix” to their new 32-bit control board that the user would have to snap off before they could install an unsigned firmware, which the company said signified the user was willing to waive their warranty for the privilege.

Thanks to [Aaron] for the tip.

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X1Plus: Open Source Bambu Lab X1 Firmware

Recently [Michael] over at the [Teaching Tech] YouTube channel got access to the X1Plus firmware, and takes us through what it may mean for Bambu Lab X1 owners. X1Plus is alternative firmware for the Bambu Lab X1 FDM 3D printer that was developed by X1 owners who felt that there were some features that they were missing, such as a detailed report on automatic bed leveling, input shaping calibration response graphs and more.

Perhaps most interesting is that this firmware does not replace the Bambu Lab firmware, but rather runs completely from a microSD card that’s inserted into the display’s SD card reader. This means that only the bootloader of the printer’s boot medium is changed, and the printer thus retains the ability boot to the OEM firmware as needed. Whether you want to try it on your own X1 depends on a few factors, first of all being that it only works with the OEM firmware up to and including version 1.7.0.

Since the bootloader modification relies on an exploit that was patched in newer firmware, a lot depends on whether Bambu Lab allows such tinkering, much like Prusa does with the Mini printer, or allows flashing of older firmware which would enable the exploit on newer X1 printers. Depending on Bambu Lab’s response, the imminent public release of this open source firmware may as a result run into some pretty big hurdles.

Continue reading “X1Plus: Open Source Bambu Lab X1 Firmware”