My dryer bangs every rotation (even when there is nothing in it) is this an easy fix?

Yes...and cheap. Go on line to find the parts you need..I am sure you will need new drum rollers for your machine.
Follow the directions below if possible:

ALWAYS UNPLUG YOUR DRYER BEFORE STARTING ANY REPAIRS
Your problem sounds like drum rollers have flat spots on them or in need of lubrication.

If you have a front loading machine,

Remove the electrical console that holds the timer switch, start switch, etc. from the top of the dryer. Remove the lint filter and the two screws holding the lint filter housing in place.
Be REAL CAREFUL not to knock any of the wires off of the timer switch.
Then remove the top of the dryer. Some lids clip on, some slide on.
Remove the front of the dryer. This will expose the drum and belt.
Remove the drum and belt and this will expose the drum rollers, idler arm
pulley and motor.
Now is a good time to check the belt condition for wear.
Be sure to note the route of the belt, this will come in handy when you go
to reinstall the belt.
Check your drum rollers for flat spots or wear, if they have flat spots
or wear on them replace them.
If the drum rollers are making a "thumping" sound then you have flat spots on them
If the drum rollers don't have flat spots or wear on them then they probably
are making a squeeling noise and is only in need of lubrication.
Lubricate the shaft of the rollers with a good grade of machine oil such as 3 in One oil.
Reassemble the dryer, plug back in.
This should solve your noise problem.
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