Scoob
New member
My rig is on a drawer unit and the grill needs cleaning every month if you're fussy but every 3 months will keep dust from causing any problems
Actually I thought about it and realised I'd not cleaned the bottom mesh out since I built the machine three or so months ago! With that said I think three months is as long as I should ever leave it between cleans now, so pretty much exactly the same as you.
I often give the front grill a quick wipe on other machines when they are off cos it's easily done. Lifting mu current rig and tipping it up is a little more effort, plus I'm not used to having a bottom grill yet so it sorta slipped my mind I admit.
Cheers,
Scoob.