Trying to add perforations onto a sheet metal channel, pretty straight forward part - 'u' shape channel with edge flanges both sides, know its something to do with fill pattern but not sure how to create. Working with a standard perforation spec from a supplier (9.53 hole dia, 12.7mm pitch)
Any ideas?
Kathryn,
Are the perforations located on only one of the three sides or all three sides?
If they exist on the short legs as well, be careful that they do not run into the bend radius.
If they are on all three sides I would ebgin by doing a "Unfold" to get a flat piece. (If only along one side Unfold is not required.)
Use Hole Wizard (or Cut Extrude) to creat the first instance (of either one or all three holes if required.) 12.7mm is reallly close to a 1/2".
Thendo a Linear pattern setting your 9.53 Pitch, number of instance required and picking an edge in that correct direction.
Hope this is of use.
regards,
Alan
Make the part flat using unfold. Then using Fill Pattern make the pattern of cuts with required hole size and shape. Finally fold using Fold.
Worked fine thanks guys. Just one more thing, my sworks is now struggling to deal with calculating all that geometry data, so creating a flat pattern dxf is proving tedious as are mods, any ideas how to lighten the data load ?
Just make one cut and export thee flat pattern as DWG/DXF. Now open the file in DraftSight and pattern the cutouts as required.
Deepak is correct, though I would add first and last hits to make sure your DraftSight pattern dimensioning matches the model. If the pattern is straight, so much easier. If it is staggered you may have to export a few extra rows or columns.
Kathryn,
Are the perforations located on only one of the three sides or all three sides?
If they exist on the short legs as well, be careful that they do not run into the bend radius.
If they are on all three sides I would ebgin by doing a "Unfold" to get a flat piece. (If only along one side Unfold is not required.)
Use Hole Wizard (or Cut Extrude) to creat the first instance (of either one or all three holes if required.) 12.7mm is reallly close to a 1/2".
Thendo a Linear pattern setting your 9.53 Pitch, number of instance required and picking an edge in that correct direction.
Hope this is of use.
regards,
Alan