The chip is designed to thermal sink thru the bottom of the chip.
I hope the designers of the A4988 considered that.
Users try to pull too much current thru these drivers.
or diddle with them when they are ON.
Fan a good idea.
Use the proper motors, don't draw more than spec
and there will be nirvana --- well at least driver won't be a problem.
There are thousands of things that ruin prints.
If you haven't had to re-print and article 5 times (with an 8 hour print time)
-- you are not 3D printing, or truly blessed
:S
I hope the designers of the A4988 considered that.
Users try to pull too much current thru these drivers.
or diddle with them when they are ON.
Fan a good idea.
Use the proper motors, don't draw more than spec
and there will be nirvana --- well at least driver won't be a problem.
There are thousands of things that ruin prints.
If you haven't had to re-print and article 5 times (with an 8 hour print time)
-- you are not 3D printing, or truly blessed
:S