test the design rules for your 3D printer(s):-

Manufacturer: Sindoh

country: South Korea

Printing Method Technology : Fused Filament Fabrication (FFF)
Max. Print Length(mm) W(max):210, D(max):200, H(max):195

Type & Year : Material extrusion, 2017
Print Layer Thickness : Setting 0.05~0.4mm
Basic Nozzle diameter :0.4mm
Filament width :1.75mm
Printable materials :PLA, ABS
Bed leveling : Auto measuring + Manual leveling

Since we are working as a group, we chose a design where there are overhangs at different angles, bridging test, hole test, etc. We worked on testing of the 3D printer to define some designed rules by printing several of test files like,

• = clearance

• = angle

• = overhang

• = bridging

• = thickness

• = dimensions

• = surface finish

Angle : The printer can print angles up to 20° without problems.

Surface finish : The surface finish looks good even with a 0.2mm layer thickness print.

Clearance : The test shows that a 0.4mm clearance between parts need to be respected.

Bridging : Bridging is perfect even at 20mm distance.

Thickness : This test shows that a minimum of 0.2mm wall thickness must be respected. A 0.1mm wall could be printed but is unusable in practice.

Dimensions : This test shows an internal dimension of 9.66mm and an external dimension of 20.14mm. That means the printer has to be calibrated.

Overhang : An overhang longer than 3mm must be supported for good results.

We printed object one without support and with support. some test output was not and good some of them are found good which are as follows:

Here we found few observations from the test print.

1.bridging test 2mm,5mm,10mm,15mm,20mm,25mm
2.Diameter 8mm,6mm test 1mm wall is printed fine
3.stringing test-top tips is not good printed
4.scale test- Fine printed
5.support test- fine printed
6.hole test- Fine printed except 2mm
7.Degree test :-after 60 degree printing but not good one

After that, we printed this object without support and in fill at 100 % and here are the outcomes

Bridging is not printed properly after 25 mm.Till 20 mm it is printed fine.Also the circle aftere 8mm diameter are not printed perfetly.till 5 mm printed fine.

String is not printed perfectly and charcaters also not printed perfectly.