Archives par étiquette : 3D printing

Calcul de vitesse pour un geared extruder

Un geared extruder demande un poil plus de calcul qu’un direct drive du fait de la présence de roues dentées. Pour compléter le formulaire ci dessous, il faut compter le nombre de dents des différentes roues (formulaire fait pour 2 engrenages et drivers pololu classiques):

(autre méthode: http://laevus.net/2014/12/produit-en-croix-de-faineant/)

Après il faut faire des essais, en sachant que la température de chauffe du filament peu faire croire que l’extrudeur fait mal son boulot.

Calcul de modification de step moteur constructeur / réel

Téléchargez la pièce de calibration calib et passez la dans slic3r, imprimez la et mesurez la le plus précisément possible. Entrez les valeurs dans le formulaire ci-dessous.

Elle mesure normalement 40mm de coté et 10mm de haut (il y a un repère qui permet de voir quel coté est imprimé sur quel axe.

Vous pouvez imprimer n’importe quelle pièce, il vous suffit de changer les valeurs par défaut dans le formulaire ci-dessous pour y mettre les valeurs de votre pièce.

Installing Pronterface on ubuntu/mint in 3mn

 
 
 

So you want to recycle an old computer to hook it up on your 3d printer (linux mint XFCE works wonders on my old samsung netbook), or you simply have a linux computer and no desire to install windows just to run your printer.

The 2 main programs to execute Gcode are Repetier -host and Pronterface (also known as printrun).

Repetier is running using wine, meaning it’s heavy and cumbersome. As for Pronterface, believe it or not, it’s linux version is prettier than the windows version.

Anyway, here’s how to install it:

1- make sure you have the python dependencies installed:

sudo apt-get install python-serial python-wxgtk2.8 \ python-pyglet python-tk

2- make sure you have git installed:

sudo apt-get install git

3- installing Printrun/Pronterface

 go into the folder you want to download it to and type

git clone https://github.com/kliment/Printrun.git

This will copy the folder "Printrun" into the folder you chose. In this folder you'll find a file named "printrun.py" and run it, voila, you have pronterface.

(you can also run it in a terminal with the command python pronterface.py)

 

Miami Vise (hmm)

So this is a little 3D printing project (that maybe exists elsewhere, i don’t know), that I made in order to be able to maintain small and large pieces above a surface that is not specially made for tinkering  (kitchen table and the like). This will allow you to cut or pierce « safely ».

It comes in two separate pieces: the main body and the holding part. The main body is 100mm x 100mm x 75mm.

I haven’t tested it yet, and you’ll probably have to print more than one to properly hold something (depends on how large the thing you want to hold is).  To mound it you’ll also need a bolt and a winged nut. Put the bolt into the hole in the main body, with the head inside, heat it a little (not really needed but helps holding the bolt and the holder together) and put the second part on it, then just put the winged nut on top, you’ll use it to tighten the pieces you want to hold.

main bodyholding partvise