Egg - printer (Easter egg printer)
Hello,
as Christmas is fast approaching, I would like to present you an egg printer (in the sense of Easter eggs
) that I recently launched. This is one of those unnecessary projects, but that's where fun counts :DI designed all the necessary elements of the structure in SketchUp and printed it on a 3d printer. Green from ABS, orange from PLA. Unfortunately, I do not know for what reasons, but I struggled with designing the electronics housing and it is a good centimeter too big. I did not want to change anymore and I left it like that
The driver is an Arduino nano with GRBL software loaded, for this A4988 stepper motor drivers and recovered motors. They could be much smaller and weaker, but that's what I had. The pen is controlled by a micro servo, and the limit switch is a slotted optocoupler (also from the drawer).
The use of a servo carries a slight inconvenience, or two. First, you need to modify the GRBL library by uploading a servo instruction file. Secondly, each time you generate a Gcode file, you need to process the file again. The postprocessor converts the commands to raise and lower the pen. Everything is described quite nicely HERE .
There is actually nothing to write too much about here. If you need more details, please ask in the comments.
Summing up the project, it is admittedly a bit too early for me to wish you a happy "Hallelujah".
Below are some videos and photos:
I don't have any sensible video editing program so I have no way to speed up videos. So I suggest you click on the settings immediately and increase the playback speed.
Comments
Add a commentGreat construction! I'm impressed! I am puzzled by a few things. As an egg uneven. One smaller, the other larger ... How did you solve the problem of getting to the surface of the egg? Is the pen... [Read more]
He he ;) I can see that I am not alone ;) I myself came up with the idea to do something like that for my daughter ;) However, I partially rely on the finished Sphere-O-bot project: https://www.thingiverse.com/thing:1683764 ... [Read more]
The arm drops under its own weight, as seen in the movies. The servo arm is a bit trimmed, because it happened that it threw the pen too hard and it didn't drop anymore. It's okay now. G-code... [Read more]
He he colors as in the Sphere-O-Bot project ;) but only one piece, because the orange filament will not be enough for the next frame, so the red one is printed (it will be for a gift in the family because... [Read more]
Cool design, how is ABS plastic different from PLA? Perhaps replacing the servo with an electromagnet would speed up the printout? [Read more]
In a nutshell (differences): ABS - hard, strong PLA - soft, flexible There is no need. You can go ahead and speed it up, but the pen does not make it. Anyway, what fun it is when the printout ends... [Read more]
Could a colleague describe the uploading process to Arduino, and then editing the drawing, step by step, providing links? [Read more]
In the first post there is a link to the manual that I used myself. Again: https://www.instructables.com/id/How-to-Control-a-Servo-Using-GRBL/ [Read more]
As a colleague, he is interested in something like that and asks such a question ;) then I suggest you take interest in the sphere-o-bot project or similar. The software for Arduino compatible in these... [Read more]
For me it is also not overly complicated. It comes down to a few clicks. G-codes don't hurt :sm31: but of course the easier the better. [Read more]
A small bug has crept in ABS - high strength, higher flexibility than PLA, better temperature resistance, soft / easy to process. PLA - high hardness, limited flexibility, good durability but less than... [Read more]
It is all very relative ;) For example, ABS with thin walls is very weak, another question what is meant by strength? Whether for bend or stroke (impact, etc.), here it becomes very complicated and sometimes... [Read more]
Of course, you are right. As the topic is too broad, I'd better paste the link to the article: Link [Read more]
I also make this printer but I have a problem with operation. I have a plate for two stepsticks under the Arduino nano, unfortunately something does not work. Hence the question about the order of startup. ... [Read more]
Maybe a colleague describe more precisely what is happening? What firmware does he use etc. etc. Because at the moment it is only to call the fortune teller Maciej ;) There is basically no great philosophy... [Read more]
I made such an eggbot a few years ago on ramps and mega2560 because I had a few 3d printers left after the construction. With more complicated patterns of squeals, the program gets lost. It is important... [Read more]
I allowed myself to link the video to my friend's forum structure @ Gizmo . Maybe he could share some details about his project, in the comment he mentions a future improvement. [Read more]
Here it basically all depends on the mechanics made and basically everyone can make some corrections to what they have in stock, and as I mentioned eggbot construction on the Internet is full and you can... [Read more]
Maybe a rapidograph would work? Women use nail tips to draw patterns. [Read more]