3D printers are ubiquitous now, but they’re still prohibitively expensive for some people. Some printers cost thousands, but even more inexpensive options aren’t exactly cheap. [Daniel] decided that this was unacceptable, and set out to make a basic 3D printer for under $100 by including only the bare essentials needed for creating anything out of melted plastic.
3D printers are essentially four parts: a bed, filament, and a hot end and extruder. In a previous project, [Daniel] used parts from old CD drives to create a three-axis CNC machine which he uses for the bed. To take care of the hot end and extruder, he is using a 3D printing pen which he mounts to the CNC machine and voila: a 3D printer!
It’s not quite as simple as just strapping a 3D printing pen to a CNC machine, though. The pen and the CNC machine have to communicate with each other so that the pen knows when to place filament and the CNC machine knows when to move. For that, [Daniel] went with a trusty Arduino in order to switch the pen on and off. Once it’s working, it’s time to start printing!
[Daniel] does note that this is a design that’s relatively limited in terms of print size and resolution, but for the price it can’t be beat. If you’re interested in getting started with 3D printing, a setup like this would be perfect. 3D pens are a pretty new idea too, and it’s interesting to see them used in different ways like this.
22 thoughts on “3D Printing Pen And CNC Machine Yields Cheap 3D Printer”
I’m glad people are constantly lowering costs for 3d printers.
My friends recently all pitched in for a 3d printer.
But I decided that building my own would be best.
As I can imagine that after 5 guys have screwed around with it and it becomes my turn… pfft that’s just lame.
So yeah I have like 7 normal dvd drives lying here and 4 laptop drives.
This has given me some motivation to strip them find a good extruder pen and build one perhaps write a script to do corrections, calibration, ect.
Despite what people are throwing together these days with junk parts, not sticking with tried and true hardware will cost you lots of time. By all means, if you really feel you should hack together a 3D printer using dvd drives, go crazy. But it will drive you crazy.
3D printer kits are getting very cheap if you elect to build it yourself. Many kits come with parts that need to be cut down which increases the immersion in what you are doing. But at least you are getting pieces known to work well.
STOP selling your product STOP destroying dreams as you do not know what you are talking about,I have built a 3d printer that uses a 3d pen as the extruder using GRBL and it works perfect….The only hassel is the slicer and having to go line by line through the gcode to replace the extrude command with the spindle on/off …if some software hacker would alter a slicer to do this automatically than that would bring the cost of machine ownership way down and that my friend is the only problem.
I love DIY projects with recycled and repurposed parts, but consumer 3D printers are getting incredibly cheap. I was at the Barnes & Noble mini maker fair this weekend and I saw a demo of the XYZ Printing Da Vinci Jr. With a 5.9″ cubed build space and .1mm resolution, it’s a decent machine. It retails for $350! It’s a plug and play unit with no calibration required. The one draw back is that it uses proprietary filament cartridges, but at around $27 for 600 grams, it’s not too outrageous. They claim that the proprietary cartridge is to insure reliable printing without having to make adjustments when you change materials. Maybe. I’m no expert, but I was impressed with the print quality. I’d never spend $2,000 on a 3D printer, but $350 is totally doable. HaD should get one for review.
That’s very impressive! Maybe Xmas after next, if I get my family to chip in together, and I put some money (probably most of it) in myself, it might be a bit cheaper then.
I would imagine you could break the DRM on any 3D printer if you swap the control board out. It’s the motors and mechanical bits that are difficult, you can run a 3D printer from an Arduino. There’s a hack, if you want one.
You can hack them rather easily. If you search around there’s arduino setups that will re-flash an empty cartridge so you can use your own filament while the machine thinks it has a new cartridge in it.
Good-o! Still my point was, that as long as the electronics are cheap and easy to replace, it’s always going to be possible to do. The Arduino hack you mention MIGHT be stopped by a company using a better scheme.
For 220 you can have an i3 clone that you assemble.
That is very cheap considering that 30% of the price is the cost to ship it to you.
Re: the hack: very nice repstrap.
Re: DaVinci Jr.:
TLDR: Good luck. ;)
I sure hope their quality or tech support have improved. As an owner of the original DaVinci, I found it was like pulling teeth to get even simple information from them. It didn’t help that that they would only answer the phone to tell you in broken English to e-mail them, and that e-mails generated unintelligible or unrelated responses.
I realize this is HaD, but hacking something that should have worked out of the box when the vendor won’t support it is…frustrating.
Two of the issues I tried to work with them:
Q: “What is your factory method for aligning belts?” (mine arrived with them loose, and the X gantry crooked)
A: “Shove it all the way to the end?”
For the record, there was no *correct* option. I could have it either crooked one way, or the other. A “carefully pre-tested” replacement printer (after much arguing about who paid to ship an essentially DOA product) had the exact same problem.
Q: “What does this error message mean?”
A: *sound of crickets* “We’ll have to get back to you.”
Spoiler alert: they never did.
Actual A: Broken hot end heater wires with intermittent connection.
Monoprice has three printers for under $350
– $170 (with tax) for the Delta Mini,
– $233 (with tax) for the Select Mini
– $317 (with tax) for the Maker Select
And some of their other models are occasionally steeply discounted. And there are plenty of other vendors that sell decent printers, no DRM, for under $350. For $350 these days, you should expect a pretty respectable printer that “just works” out of the box, has 0.1 mm Z resolution, and has no “vendor lock-in” features .. oh, and has tools and maybe even a starter roll of filament.
We use a small farm of the Select Mini printers for doing prototypes .. they are cheap and good, and 95% oof all objects that we might print will fit in the build volume. With a }mini-farm”, you can always have a printer at the ready to crank out your latest iteration of an idea.
One printer with proprietary filament that I actually do like quite a bit is the Sindoh .. you pay a little more for the printer and the filament, but you get some actual benefits in return. Since they don’t gouge on the price of the filament, it’s actually kind of nice .. you pop the cartridge in, and the printer knows about how much is left, what color it is etc , etc. If your time is worth money, it’s an easy pill to swallow. And the printer is enclosed, so it’s quiet. For a professional setting, it’s a nice little machine. My only complaint is that the stage heating is does not extend evenly to the edges, so objects whose footprints exceed the “sweet spot” in the center of the platform have an unfortunate tendency to warp.
These 3d pens use dc motors and jam really often. They also have a much bigger nozzle.
true, but for the price of the pen you are not that far away from a full extruder, if you shop around.
The pens seem to cost more than a low-end to mid-range extruder!
And the pens are junk. There is no control over relative or absolute extrusion. It’s just a DC motor pushing out hot plastic when you hit the button. It’s one of the dumbest idea ever and people went bananas over them. The concept is neat but the final result when you try extruding plastic in an uncontrollable fashion makes a mess. It looks like a cat held down the mouse button on the canvas in Microsoft paint.
I never understood why no one did an airbrush-like trigger. I had hatched plans to build one, bought a bunch of parts then pretty much lost interest as it was only distracting me from other projects I’d rather do.
You are completly wrong ,I have used 3d pen for the past 3 years never a clog…THIS IS A SITE FOR HACKERS NOT CONSUMERS
I am impressed. All the “3D printing pens” I’ve looked at are basically one or two forward speeds and reverse, so it really puts strong constraints on the machine in order to build a part. I think a better extruder could easily be built in less than the price of that pen.
Nice to see this – I’ve been thinking of making a print head attachment for my commercial CNC mill – have the print head fit in a collet – I would get a 18″x36″ build table, 0.0001″ accuracy and 3 axis interpolation!
And a messy blob of a print. You need precision control over the extrusion rate. There is a reason almost all filament printers use a stepper motor to drive the extruder.
There is a great youtube video about salvaging the stepper motors and rails from old drives.. Out of my huge stash of parts I have 3 CD rom drives , 3 – 3.5″ floppy drives and One printer rail with a stepper motor.. Perfect for making a few platforms , (the printer rail with 11″ travel and a CD-rom rail with 4″ travel plus a Laser diode would be perfect for lots of things… Or put 3 axis together for a pen plotter , 3d printer,dremel mill etc..
I just need help with the Audrino, Grubber, and a laser diode capable of paper craft, thin Styrofoam, maybe balsa if I have enough power, PCB etching is possible.. Yeah Id much rather have a cheap, simple 2D laser cutter then a 3d Printer.
Most if not all of the naysayers do not know what they are talking about as I said before THIS IS A SITE FOR HACKERS NOT CONSUMERS WITH DADDYIES CREDIT CARD
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