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It is still limited by a potentiometer.
It is step 12, basically go to Path and trace bitmap
1. Yes you can use Arduino Uno, pins are definde in the programm.2. Extract plotter.zip on your desktop, or wherever else, open Plotter4 folder and Plotter4.ino in your Arduino software. The rest of the sketches are tabs which can you switch to at the top of Arduino IDE.
Probably it is. But I will recommend using external power supply for the motors (9 or 12V) so they will have more power.Plotter update including this feature comming soon, I have also hacked my motors and now they are bipolar style motors, and I will be using my custom stepper motors drivers in the next version.
There will also be plotter update soon, program for stepper motors will change, I will add some bearings and change plotter drawing head.I am working on it right now and I will release this update as soon sa possible :)
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Plotters with stronger stepper motors like NEMA17 can easily draw on walls. There are also special types of plotters for vertical surfaces only, just type 'wall plotters' and you will find them on the internet. The are using motors to go up and than force of gravitation to go down. There aren't any odd questions by the way :)
3D printers are much more complicated than this plotter. For printer you will need third axis to move it up and down and fourth 'axis' for extruder to push filament into nozzle. Than you have to melt it in 210 degrees Celsius. This causes lot of additional programming which ATMega328P won't handle (my 3D printer uses Arduino Mega).It will actually be easier to make diffrent project than changing this one.Thanks for support!
If one of X axis motors lost step (or I'd better say lot of steps, one or two won't do anything), than Y axis could stop moving. Consequences for drawing will be terrible.
Two motors on one axis works fine as long as they aren't losing steps. Than one side of Y axis could stop and other will still going - this will broke the drawing. You should also think more about endstops for each motor separately.
I have small rubber holding marker down, if you want to draw with pencil or pen you will have to use springs or something stronger because they need more force to draw.
You can download 3D parts and print them on your 3D printer on buy them on the internet, for example on 3D Hubs.The pen lift system will be upgraded soon, on my website that i'm wirking on now.
Oh sorry, i forgot to remove it. There was before an option to change drawig speeed but i have removed it because these motors are so slow anyway and there wasn't any reason to slow them down even more. I left it there so plotter won't print that there is unknown command 'F' in the g-code. Than i have also removed serial and gorgot about this case. Thanks for support :)
Thanks for your idea! I've changed my plotter header so now it can use any type of pencils, not only with 8mm diameter like before. I've tested some diffrent pens and that, in my opinion, is the best result. I've achieved it with the marker that is on the photo.There is centimeter ruler underneath for scale
Plotter just got featured!
my delta has 80mm/s limit, so it os not even 300%
Drawing PlotterView Instructable »
Working on it right now!
Good project, but a bit too useless for me :)
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1000 steps ServoView Instructable »
judging tech will be nice
burning atmega328-pu and atmega328p-pu bootloader
Very cheap Delta 3D Printer (about 150€)
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