Tuesday, March 16, 2010

Tags for profile operation


I have added the option to program tags in HeeksCNC for the profile operation, by ramping up and down over the tag while cutting the profile.
You can specify the width, angle and number of tags.
They are simply spaced evenly around the length of the profile.
I tested the toolpath by cutting a 20mmx20mm square in some wood.
I was able to cut through the tags with my penknife.
The first video shows a mistake. I had set z = 0 to be at the bottom of the block, instead of at the top of the block as programmed.

Monday, March 8, 2010

More clamping room

I need to implement tags on the last cut, so that the part can be held in place.
This part separated when I wasn't expecting it.
It didn't break the tool, luckily.
I have enough done to experiment with drilling the holes on the side.
I have now got a 6mm slot drill, which will quarter the cutting time.

Delrin parts

I have been given some step files from someone who wants some parts making from Delrin.
He wants 8 of this part. The first thing is to cut the circle out of the middle.
I haven't got the Delrin, yet, so I am having a go with some wood that I have found in the workshop.

Next to clear the lower level with a pocket operation.
I made the shapes to cut by doing Edge to Sketch, on some circular edges, then making circles with "centre" and "end" ticked in "digitizing". Then I made the circles to sketches, then to faces. Then I subtracted one face from another and made another face from a sketch across the middle, and subtractacted that. Finally I did Face to Sketch to get me the sketches I wanted.
I am doing it all with my 3mm slot drill, so I don't have to set the z height of the tool again. This does mean a lot of tool path, though.

Tuesday, December 1, 2009

Flyout toolbars improvement


Flyout toolbars working OK with Windows, but not quite right with Ubuntu.

Sunday, November 29, 2009

OpenGL tree view

I made a tree view drawn with OpenGL for HeeksCAD.
This makes it quicker and it doesn't collapse each time something changes.

Thursday, November 19, 2009

open source tractor

Marcin asks "I was considering Blender. Can HeeksCAD do better?"

I haven't tried Blender for a while.
I like to think that HeeksCAD is easier to use, but that might just be because I wrote it.
Here is a video of me playing with HeeksCAD a few minutes ago.
HeeksCAD has plenty of bugs, but it is OK for making some solid models.
It doesn't do anything nice like fitting solids together.
Save the file every time you do something, preferably with a different file name each time, in case HeeksCAD crashes.

Saturday, November 14, 2009

Splines for pocketing

Sketches with splines work for pocketing operation too, now.