This gizmo is for seeing how different layer thicknesses compare, and getting an indication of bridging performance.

It has a loop to hang the samples on a peg board, so you can compare filaments easily.

Use the customiser to set the number of rectangles (frames) and your height increments (layer_step_height) as well as other parameters such as frame dimensions and label text. Or just use the default settings.

e.g. If you set frames = 4 and layer_step_height = 0.2, the frame layers will be created as 0.2, 0.4, 0.6 and 0.8mm

Check that in your slicer settings your first layer height is <= the layer_step_height or the thinnest frames may not print a bottom layer.

Bridge height is 2 * layer_step_height, and the first bridge layer isn't really adeqaute to support the second bridge layer which prints at an angle to the first. Will be interesting to see how different slicers handle this. Could make quite a difference in the quality of prints that use bridging.

edit Ver 2 has no bridge, and I added a cylinder at the bottom of the strip to attach other strips to.

Defaults:

frames=7;
layer_step_height=0.2;
$fn=20;
frame_x = 30;
frame_y = 15;
frame_z = 2;
ring_diam = 12;
ring_height=2;
label_x=30;
label_text = "PLA";
font = "Liberation Sans";
letter_size=5;