Preform can't rotate correctly and crash when saving

General Discussion
1

I use the latest version of Preform, I found it very hard to rotate the object percisly like I can do in other program. The numeric control is 10 times slower than hand rotating (use mouse directly to rotate). And even more it seems the z rotation is working but one of the X,Y rotation is not working, I can’t tell which one because there is no axes in Preform, no matter what number I enter in the X or Y rotation, the object rotate on the same axes, I recently want to print a large object which has 90,000 polygons and I can’t save it as form file, It crash every time I try to save the object, thus I have to cancel the print.

By the way I try the model in my FDM software and the rotating works correctly in three axes and I can save it without any problem. I really hope Formlabs can fix the rnumerical otate problem, and add axes to the scene, and the save problem for high poly count object.

2

by the way the scale works but slow too, when I enter a factor into the number dialog, it stuck for a while like the numerical rotation does. I don’t think it should be a p problem for Preform since I can rotate the object so fast by using mouse,

3

I can save the model mow, it seems something to do with the scale function, The model I made was in cm unit and after I import it into Preform I have to scale it 10 times since Preform uses mm as one of the default units. I couldn’t save the model after I scaling it. I tried to open the model without scaling it and save it first. Then I reopened the scene and scale it 10 times, and I rotate it and generate the supports. I save it with no problem.

It much be a bug of Preform.