====== Tests ====== ===== Drilling ===== Place: GreenFabLab, KampLintfort, Germany.\\ Date: 16/April/2021 This test was made to check the behavior of a drill to get familiar with the process and consider it for machine structure requirements. Soil type: Clayey **Materials:** 1. Drill:\\ - Brand and model: Bosch GSR 18V-21\\ - Torque: 21/55Nm 2. Drill bit:\\ - Diameter: 32mm\\ - Length: 500mm {{:soil_sampler:drill1.jpg?450|}} **Process:** The first time, I got to drill 30cm depth.\\ {{:soil_sampler:Test1_2.jpg?450|}} The second time, I got to drill 50cm, which is the total length of the bit.\\ {{:soil_sampler:Test1_1.jpg?450|}} **Outlook:** During this test, it was remarkable that [with this amount of torque and these soil conditions] it is not possible to take a soil sample by drilling more than 30 centimeters deep in one go, separate the total depth on multiple phases would be a good an alternative to increasing torque in this case.