Preparing files for the waterjet
Preparing a cutting file for the waterjet cutter.
use a cad program for the drawing. In the file, have only lines, which will be
. Take the thickness of the cutting jet, ~1mm, into consideration.
· Line type and width does not matter.
· Have the lines on only one plane and layer.
· Gap between cut items can be 2mm.
· Export into metric dxf file.
From a 2d drawing, simple tilted operations can be machined. Ie. beveled cut or a cut at an certain angle. If your cutting involves more complex geometries or many angled cuts, please send a 3d model.
· The model should be the same thickness as the material being cut.
· Maximum angle is 59°
· Export into metric step file.
Small pieces (smaller than your palm), need to be held on to the base material. A simple tab can be created when making the cutting paths at the waterjet, but if you are cutting several items please hold the pieces together with small connecting bridges between the pieces or create a comb connecting the pieces. This way you will be in control where the connections are and can be sure they will on intervene with your design.
When cutting fragile materials please provide more room between each item. For glass 10mm
Workholding for sheet materials take roughly 50mm around the cutting area of the file.
Making files with Rhino3d
Draw cut geometries on one level. Have only cut geometries on the drawing.
Command SelAll selects all
SelDup selects duplicate lines which can be deleted.
Export command lets you save your drawings
Kuva: Tallenna DXF
Save as dxf.
Kuva: tallenna CAM metric
Choose CAM Metric from dxf export options
For advanced use, the layers can be used to determine cutting quality.
|1||quality 1 cut|
|2||quality 2 cut|
|3||quality 3 cut|
|4||quality 4 cut|
|5||quality 5 cut|
|21||quality 1 slit|
|23||quality 3 slit|