10M Test V2.1 - 10 Minute Mini Calibration Print

What is the reason in it?

Main goal was to make a calibration test as tiny and effective as possible for the common 0.2mm layer height and 0.4mm nozzle.

• Save as much material as possible

• Save as much printing time as possible

• Show useful test results for retraction and printing quality

• Only include the most important and basic tests for proper calibration (in my opinion)

Why this and not others?

There are plenty of other test models out there, either with a very big range of tests, or just one test. Usually they are using a lot of printing material and printing time. However I just wanted to make a quick check to see, if printing results are okay regarding the most common topics - or have a quick test for fast iteration when adjusting parameters like temperatures, flow ratios, .... Compared to my V1 design, which was really useful over the years, I felt that within 10 minutes more could be tested.

What is in it?

• Fast: Print in less than 10 minutes (depends of course on printer speed, my Ender V3 KE can print it in ~6 minutes)

• Small and lightweight: ~1.5g at 38 x 13 x 12mm

• 3D printer friendly: No supports, rafts, brims, …

• Area for 1st layer and top layer (with V2.1 model)

• Bridging at ~16mm: Top bridge with 1 layer only (0.2mm) and bottom bridge with 3 layers (0.6mm)

• Stringing and oozing check between left and right tower

• Overhangs at 40°, 50°, 60°, 70°, topped with a 9 x 9 mm square surface

• Slots/gaps at 0.1mm, 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1.0mm

• Fillet 2mm and 6mm in layer direction

• Chamfer 45° in layer direction

• Letters with 4mm height

• Tapered tip 45°

• Inner edge 90°

• Use overhang structure as a handle to easily remove from a sticky printing bed

• Space for label sticker on bottom side (13 x 25mm)

Tips

1. Top and bottom layers: Make sure to have enough layers, so that there is no infill below the text and gaps/slots! Works for me: 5 top layers and 3 bottom layers

2. Layer height: Can be also printed with other layer heights than the "default" 0.2mm, but check layer amount setting, tip #1. Also note, that the top bridge has a height of 0.2mm, which may have then more than 1 layer (e.g. at 0.1mm layer height) or disappear entirely with higher layer heights - though all depends on the slicer settings.

3. Overhang: The upper overhangs at 60°, 70° are of course challenging, don't be too sad if that won't work out well. IMO good designs for 3d printables should anyway never have overhangs >45°. If the top square is off, then the 70° might be too much of an overhang to handle.

4. Z Seam: Recommended to put it manually on the long continuous, 6mm fillet side without the steps (backside I believe)