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Z Axis - MyCore for SmarCore

by louis2, published

Z Axis - MyCore for SmarCore by louis2 Jan 17, 2016
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Summary

Ma version personnelle de l'axe Z sans porte à faux d'Andreas pour la SmartCore.
Son montage, et notamment l'alignement des poulies est probablement plus fastidieux que sur la version originale. Vous pouvez faciliter les choses en optant pour des poulies à flasques (roulement 688 et flasques imprimées) au lieu des roulements 608 seuls.
Il sera aussi nécessaire d'inverser le sens de rotation du moteur.
Le plateau en tubes carrés peut être adapté aux dimensions de votre imprimante ou remplacé par une planche de contre-plaqué.
Voir le fichier "axeZ.pdf" pour l'assemblage.
L'impression se fait sans support, sauf pour le tendeur.

Print Settings

Printer:

Smartcore

Resolution:

0.3

Infill:

20


Notes:

Le tendeur doit être imprimé avec support.

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the build plate is too heavy and the z axis falls. tried to temsion the belt as high as i can but no luck.

I'm sorry to hear it.
My build plate alone weight almost 750gr. It's a 3mm glass plate with sheet of steel glued on the back. And it works for me since two years.
Since 2016 i have replaced some parts because of cracks. Including the tension lever. But nothing unusual i think for pla parts.

im working on a solution to not using a second z motor( with a second gear tensioner), what happens in my build is that either the belt slips the gear or its too heavy and the resistence of the motor isnt enough to hold it.

Contrary to a lead screw, a drive belt system is reversible. That mean it's normal for the plate to fall when the motor aren't in service and locked. And you can't solve that by tensioning the belt.
We usualy use the endcode to automaticaly lower the plate at the end of the print. And add some soft material or coil springs as mecanical stop.

after messing with this setup for a while my parts broke and i decided to move to a 2 lead screw setup.
now this works perfectlly.

where did you get those files? thank you

i made them. the clamps that came with the threaded rod and rods werent good for the appllication( they would slip)
and the distance between the parts was not good.

ill upload the files if you want them

edit :
https://www.thingiverse.com/thing:2896274

Smartcore Z axis Threaded Rod Assembly

Hi,

It is possible adapt the plate to fix a hotbed?

That 4 screws under the glass plate are for what?

The screws (M4) are used to adjust the height of the bed. It a simple 25cmx25cm glass plate.
I dont use any heatbed for the moment.

Thanks,

How do you fix the belt?
In Step 4 you talk about a "jonction", this is a printable piece?

Plutôt ingénieux comme idée :)
Les 4 trous aux coins du plateau, dans lesquels on peut insérer des vis, c'est aux dimensions d'un plateau chauffant ? C'est fait pour ça ?

Et non. Je n'en utilise pas. Du coup je n'y avais pas pensé.
Mais c'est une bonne idée. J'ajoute ça à la liste.

Actuellement c'est peut être faisable en construisant l'ensemble autour du plateau. (ça impose de définir ensuite la longueur des tubes, les dimensions de la caisse et des stub par rapport au plateau.) Par contre c'est pas optimal. Les trous sont prévu pour du M4.

Comments deleted.

What build plate size is this designed for?

I use a simple 24x24cm glass plate. (no hotbed)

Merci! What is the size of the aluminum pieces that support the build platform?

It's 10mm square tube. length 230mm and 250mm. (See the file "axeZ.pdf")

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