Comments on RepRap: Blog: Build Quality

Maybe I'm just being daft here...but wouldn't modu...

2009-07-27T16:35:17.621+01:00

Maybe I'm just being daft here...but wouldn't modulo 3 or 7 be better? With an even number on parts with many layers that are exactly the same you will get exactely four layers before the start point comes back over the original location because the changes in hatch direction are inherently even--we only switch back and forth. But, with an odd modulo, we get less of that line-up with the hatch direction flip and thus a minimum of twice the number of layers as you specify for your modulo--i.e. 6 for modulo 3 or 14 for modulo 7. This is an easy way to get more layers, more variability in start location, and more stability for the cost of changing a 4 to a 3 or a 7 in code. Just a thought.

Demented

Yes - the hatch direction flips between odd and ev...

2009-07-27T11:08:21.804+01:00

Yes - the hatch direction flips between odd and even layers, of course, so a vertical prism gets a different start point in alternate layers anyway.

In addition I've made it so that it flips the direction vector on the hatch modulo 4. This means that it starts in a different place cycling through four layers. And when the profile changes that shifts it too, of course.

Have you included provisions to vary the start poi...

2009-07-27T04:17:59.084+01:00

Have you included provisions to vary the start point from layer to layer? Could prevent introducing structural problems in odd geometries... Just a thought.

Good idea.

2009-07-27T04:13:42.260+01:00

Good idea.

this sounds like an interesting idea, i hope it wo...

2009-07-27T01:34:45.335+01:00

this sounds like an interesting idea, i hope it works out, i will keep my eyes open for it in the future