Intro and Tools
This is a quick and simple tutorial for modelling battle damage on your models. The idea behind the effect is to create realistic looking damage where a bolter round failed to penetrate ceramite armour and instead exploded on its surface creating a small impact crater from the resulting stress wave. For modelling this technique you will need:
A sharp scalpel blade
2 different sized drill bits (I used 1mm and 2mm)
Optionally you can use files to clean up or to create the asymmetrical imperfections
First take your smaller drill and eyeball the right spot for the damage. I used 1 mm drill as that is what I use to drill my bolter barrels. Drill roughly 1-2mm into the model so that you get a nice round crater with the tip of the drill.
Now follow up with a larger drill bit to make the actual impact crater. I used a 2mm drill bit here. Drill a shallower hole using the previous one as a guide. This is achieved by carefully twisting the tip of the drill onto the existing hole on the model.
Finally take your scalpel and carefully cut a couple of small dents onto the edges of the crater. Make sure you randomize their size and location for each impact to sell a more natural looking effect.
Here is the final result. By drilling 2 separate holes onto the model the crater has a visible distinction between where the round landed and the resulting impact. Imperfections aka dents and chips on the edges break the symmetrical form and create a more natural looking effect.
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