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Cartesio - Plotter drawing robot

by alegiaco, published

Cartesio - Plotter drawing robot by alegiaco Mar 24, 2016

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10285Views 2113Downloads Found in Robotics

Summary

Cartesio is a robot drawing. It is similar to AxiDraw plotter, but built with a 3d printer and a common hardware.
You can find all the details here: http://robottini.altervista.org/cartesio-low-cost-cartesian-plotter-robot

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Is it accurate enough to use it to write letters with?

Sure!

ho costruito Cartesio, funziona tutto, davvero un ottimo lavoro.
ho solo un problema che non riesco a risolvere, non rispetta le dimensioni, quando dal grbl controller invio 10 mm di spostamento lui si sposta di circa 28mm, penso di dover modificare un parametro del firmware grbl ma non capisco su quale devo agire, puoi darmi un indicazione? grazie in anticipo.

PS: ho caricato quello personalizzato da te su arduino.

devi fare riferimento al wiki di grbl. Devi modificare gli steps/mm qui: https://github.com/gnea/grbl/wiki/Grbl-v1.1-Configuration
ecco i comandi che ti interessano:
$100, $101 and $102 – [X,Y,Z] steps/mm
Grbl needs to know how far each step will take the tool in reality. To calculate steps/mm for an axis of your machine you need to know:
The mm traveled per revolution of your stepper motor. This is dependent on your belt drive gears or lead screw pitch.
The full steps per revolution of your steppers (typically 200)
The microsteps per step of your controller (typically 1, 2, 4, 8, or 16). Tip: Using high microstep values (e.g., 16) can reduce your stepper motor torque, so use the lowest that gives you the desired axis resolution and comfortable running properties.
The steps/mm can then be calculated like this: steps_per_mm = (steps_per_revolution*microsteps)/mm_per_rev
Compute this value for every axis and write these settings to Grbl.

How and where i can print stl files..?
Please Help in this regard.

How to connect the servo to the CNC Shield ?

D11 pin for the signal, +5V and GND. Detail here: https://github.com/robottini/grbl-servo

I made the machine and it is working. But I see all it draws not rectilinear is at very very slow speed. Such as lot of segments drawing very slowly. Does somebody have the same problem?

Ciao, perché sono presenti 2 file "top carriage". sono diversi ma non riesco a capire se servono entrambi o solo uno.
grazie!

Hai ragione, ne basta uno solo. Ora elimino l'altro. Grazie

May 31, 2016 - Modified May 31, 2016

Hi all, could somebody print all stl for me? I will pay for it. Im in Slovakia so please calculate price.

Hey,very nice job,but the files for the y axis rod fixing missing,could you upload them please?

You are right. Sorry. Done: Cartesio_y_axis1 and Cartesio_y_axis2

Perfect,thhanks for sharing

Brilliant, I had just looked at the axidraw this looks like a fun project. Thanks for sharing

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