week 7.1

The Textile Scaffold.

Assignment | 7 November 2017

Make a prototype of a technical textile application.

ref.: http://fabricademy.fabcloud.io/handbook/classes/06_textile_scaffold.html


Mesh mode

To start I first need a model : https://www.thingiverse.com/thing:713270

resin-prep-1.jpg


CAM mode

In setup you define the origin and stock size.

setup > new setup


add toolpath

Now to choose an appropriate 3D toolpath. First step is understanding the difference between the top 2 toolpaths in the list. In hindsight, the description is accurate. :)

I first tried milling with the adaptive clearing toolpath. Which almost resulted in a broken tool. What I did not realize it will do, is use the entire length of the tool to push trough the material. The machine I am using is the Roland SRM-20 which is not strong enough to handle that kind of force.

So for me, using the pocket clearing is the way to go.

knot-26.jpgknot-27.jpg


Pocket Setup (roughing toolpath)

knot_pocket-setup.jpg

knot-simulate.jpg


Morphed Spiral (finishing toolpath)

knot_morphed-spiral-setup.jpg

knot-finishing-toolpath.jpg


Define tool library

This is the first time I am using this CAM tool, so also the tool library needs to be created. The tool I'm using is a 1/8 inch, 2 Flute Ballnose from Carbide depot.

From the tool library I selected a generic ball nose mill, which I copied and then changed into what Im using. To start I first compare (or edit) the size of the cutter with the data stated on the website. On the website, linked under technical resources you can find a data sheet speed & feed recommendation.


2D countour (cut out toolpath)

In “model” mode I use the 'projection' to create a silhouette of the 3d file. This silhouette can then be used in CAM mode as a 2D contour toolpath.

knot-2d-toolpath.jpg

knot-2d-contour-toolpath.jpg


Post processor

This will export the file to Roland milling file. This can be imported to Vpanel, which it the program that drives the milling machine.

CAM > Actions > Post process.


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