Does anyone have any tips for panting straight lines on mechs? The areas I am dealing with are too irregular to mask off.
Have you ever heard of 1mm tape? It is as wide as the silver stripe on this Lancelot, and can obviously handle irregular surfaces.
Admittedly, the stuff has its limits... Because of how thin it is, it doesn't really "grab" the surface, so be careful handling it. Also, paint will pool along the edge of the tape, which once dry will create a mold line like blemish that will need to be taken care of. And there is still the need for Worktroll's method... But it is a great help with getting that initial line down.
If you can handle a little thicker on your project, it comes in 2mm, 3mm, and so on... A quick search on Amazon shows it'll cost around $5-$6 USD per roll, so no too terribly expensive.
Caz