nanoDLP

macdarren

Member

Registered: 2017-03-20

Posts: 411

Tiny issue with new erode feature

Loving the new erosion features especially for the burn in layers!

I have noticed that there is a tiny flaw maybe in how the eroded path traces an inside perimeter...almost like it doesn't quite complete.
I don't know yet if real world this is even an issue but you can see it in the plate previews.

I am posting a couple links....one is the normal object, the other the eroded object and the one shot of the layer where there there are the expected unsupported lines.

All corners should be right angles but note one is not in the eroded version (and the overhand version too)...it has one inside cut at about 45 degrees....
My guess is the algorithm didn't quite stop and start at the same point and left a small un-eroded inner corner.

https://www.dropbox.com/s/72x7q9m0xeppo … 0.jpg?dl=0
https://www.dropbox.com/s/9m733904h9zez … 0.jpg?dl=0
https://www.dropbox.com/s/lebi356bcpnm0 … 2.jpg?dl=0

This object is basically a slip fit test...the two blocks should slide together the smaller one passing through the opening in the larger...and in point of fact they do just that except on the first layers
when they are printed directly on the bed...here the spread of the burn-in causes over cure which then makes the parts lock up.

I measured the spread an added that to the burn-in erosion so in theory now the parts will fit together even on the first layers, and it looks like it will do just about what I wanted and cure the over cure!!!
Not sure the corner will cause an issue or not, but figured there might be a quick fix...

Thanks for the time and the new feature.

P.S. While I am dreaming up more work for you to do ... ...a pair of check boxes in the plate (advanced section) to enable/disable normal and burn in erosion specified in the resin profile would be handy.

Last edited by macdarren (2019-05-01 19:15:54)

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,541

Re: Tiny issue with new erode feature

It could be malfunctioned triangle issue as I see kind of behavior from certain programs exports.