Drill the Casing

Drilling is also one of the part of the project. We do the drilling for our project casing, which is we need to make the hole for two l.e.d, metal sensor (coil) and also the cable for the battery and switch. Drilling also needed when we want to drill the PCB board hole for the components. Drill have several type of the drill bullets, it have a big one and also the smallest one. So that, we can adjust the bullet according to which bullet we want. It is easy handling and easy to change the bullet, otherwise it come up with the small size of drill and together with the socket and charger in one small red box. 

Before start drilling, we need to measure and marking the hole that we want to drill. This is because it can help us to ensure which part that we want to drill. If we did not marked it, then it could be a possible that the hole we do might be not as we expected. The mark of the casing can be only use pencil or marking pen. We just need to measure the size that we want then mark it before start drilling. Make sure the way of handling the drill is correct. Hold the drill tightly as the safety for us and people around us during drilling.

Here the figure on how we do drilling and the figure how do the casing look like after the drilling process in done. The another one hole that left is actually for the null button of potentiometer but then we change the position to the left, so that the hole is not needed anymore. We decide to leave it like that to decorate and put something at the top.