MakerbotCNC PCB etcher

Makerbot Printer Reborn As PCB Engraver

Makerbot 3D printers were among the first to hit the market, so it makes sense that old and broken ones now litter the shelves of hackerspaces and home workshops alike. Rather than throw his one out, [Foaly] saw an opportunity to convert it to some sort of CNC machine. Given its lack of inherent rigidity and relatively weak motors, he opted to make a low-impact circuit board engraver which he appropriately calls the MakerbotCNC. We like the thought he put into this project, and it was clearly backed by plenty of experience.

Circuit board etched using MakerbotCNC

Fortunately, his Makerbot Replicator 2 stemmed from a time when MakerBot was more open, meaning he could control the machine using a simple, open library. A little more open software handled his conversion of Gerber files to G-code. First tests drawing with a pen were successful, so he moved on to the carving head. He opted for an inrunner brushless motor to minimize dust getting into the motor but since these motors have a tendency to heat up he had to add fans to cool it. That still didn’t stop the heat from melting and bending his attempt at a 3D printed PLA carriage, so he switched it to a laser-cut MDF board to fix it. Finding the right collet proved tricky but eventually, he found the perfect fit was a collet clutch normally used to couple flex shafts to RC boat motors.

The result, as you can see was worth it. Using shallow passes, he can even cut carbon fiber parts.

While [Foaly] didn’t opt to replace more parts and go for a more powerful CNC, check out this 3D printer to CNC conversion which can cut wood, acrylic, and even aluminum.

MakerBot Releases Their 6th Generation Of 3D Printers

Just in time for the back to school and holiday season, Makerbot has released their latest line of printers. The latest additions to the lineup include the new Makerbot Replicator+ and the Makerbot Replicator Mini+.

The release of these new printers marks MakerBot’s first major product release since the disastrous introduction of the 5th generation of MakerBots in early 2014. The 5th generation of MakerBots included the Replicator Mini, priced at $1300, the Replicator, priced at $2500, and the Replicator Z18, priced at $6500. Comparing the build volume of these printers with the rest of the 3D printer market, these printers were overpriced. The capabilities of these printers didn’t move many units, either (for instance, the printers could only print in PLA). Makerbot was at least wise enough to continue building the 4th generation Replicator 2X, a printer that was capable of dual extrusion and printing more demanding filaments.

The release of the Makerbot Replicator+ and the Makerbot Replicator Mini+ is the sixth generation of MakerBot printers and the first generation of MakerBot’s manufactured overseas. This new generation is a hardware improvement on several fronts and included a complete redesign of the Makerbot Replicator and the Replicator Mini. The Replicator Mini+ features a 28% larger build volume than the original MakerBot Replicator Mini and an easily removable Grip Build Surface that can be flexed to remove a printed part. The Replicator+ features a 22% larger build volume than the MakerBot Replicator and a new Grip Build Surface. The Replicator Mini+ is $1000 ($300 cheaper than its predecessor), and the Replicator+ is $2000 ($500 less expensive). Both new printers, and the old Replicator Z18, now ship with the improved Smart Extruder+.

While the release of two new MakerBots does mean new hardware will make it into the wild, this is not the largest part of MakerBot’s latest press release. The big news is improved software. Makerbot Print is a slicer that allows Windows users to directly import 3D design files from SolidWorks, IGES, and STEP file formats. Only .STL files may be imported into the OS X version of the Makerbot Print software. MakerBot Mobile, an app available through the Apple Store and Google Play, allows users to monitor their printer from a smartphone.

Earlier this year, we wrote the Makerbot Obituary. From the heady days of The Colbert Report and an era where 3D printing would solve everything, MakerBot has fallen a long way. In the first four months of 2016, MakerBot only sold an average of about fifteen per day, well below the production estimated from the serial numbers of the first and second generation Makerbots, the Cupcake and Thing-O-Matic.

While this latest hardware release is improving the MakerBot brand by making the machines more affordable and giving the software some features which aren’t in the usual Open Source slicers, it remains to be seen if these efforts are enough. Time, or more specifically, the Stratasys financial reports, will tell.

The 2014 Line Of MakerBots


With the Consumer Electronics Show over, it’s finally time to take a look at the new line of MakerBot printers (here’s the press release). Unlike MakerBot’s previous offerings with a one size fits all business model, they’re branching out with a product line that can only be described as, ‘regular, small, and large’.

The new MakerBots include an updated Replicator that’s just slightly larger than the previous version. It includes Ethernet, an option for WiFi, an on-board camera, and a control panel with a 3.5″ LCD and rotary encoder. This new Replicator will retail for $2900, $700 more than the current Replicator (single extruder).

The other new MakerBots include the stripped down and small Replicator Mini. It’s a no-frills machine with a build volume of 10 x 10 x 12.5 cm (~4 x 4 x 5 in) with 200 micron resolution. Also in the new lineup is the Replicator Z18, an impressively large printer with a 30.5 x 30.5 x 45.7 cm (12 x 12 x 18 in) build volume, 100 micron resolution, plastic sides for a heated build volume, and all the bells and whistles on the new Replicator. The Mini will sell for $1375 and the Z18 is expected to sell for $6500.

The updated Replicator is available now, and the Mini and Z18 will be available sometime in the next few months.

TangiBot And The Perils Of Open Source Hardware

I’ve commented before on the terrible inefficiency and artificially high expense of the current crop of 3D printers. It simply doesn’t make sense to produce the plastic parts of 3D printer kits on a printer farm when there are literally thousands of Chinese injection molding companies that will make those parts cheaper. It looks like [Matt Strong] heeded my call and now has a Makerbot Replicator clone up on Kickstarter that costs $700 less than the official version. We assume the Makerbot lawyers are having a busy morning.

From the info on the Kickstarter page, [Matt] is used parts from his Makerbot Replicator to design a one-to-one copy. Every part and component on [Matt]’s TangiBot is 100% compatible – and seemingly 100% identical – with the Makerbot Replicator. Like the Replicator, [Matt] is offering a dual extruder version that allows you to print in two colors.

At the bottom of the Kickstarter page, under a section titled, “How is 3DTangible able to make a Replicator Clone?,” you’ll see [Matt]’s reasoning for cloning the MakerBot replicator. He says everything is open source, and, “MakerBot used other open source designs when designing and producing their 3D Printers.” We’ll agree that MakerBot used existing extruder designs (and improved upon them), but MakerBot was not this blatant in borrowing from the RepRap project.

For want of editorializing, I’ve complained about the stupid inefficiency of manufacturing 3D printers with 3D printers before. It was only a matter of time before someone realized current manufacturing techniques can be used to make 3D printers cheaper. [Matt] – dude – you were supposed to clone a RepRap. Makerbot has done some really incredible things for the community such as building Thingiverse and generally being an awesome cheerleader for the 3D printing community. Taking the flagship Makerbot printer and making it cheaper will not make [Matt] any friends on the Internet, but at least the laws of economics are coming to the world of 3D printers.

Thanks [Brad] for sending this in.