While printing if you get this vibration (I've never gotten it) slow down the print in the TUNE menu. Normally it prints at 100% but you can speed up or slow it down so that the "bumps" aren't happening right at the harmonic for the bed.
Wall thickness of .2mm is very bad. This means it will underextrude all the infill by 50%. So keep that at a multiple of your head diameter (as solid print states). The head diameter is .4mm.
The warping at the front - is it like this picture (5th picture down on the left)?
http://support.3dverkstan.se/article/23-a-visual-ultimaker-troubleshooting-guide
Any problems not cleared up please post pictures next time as we may be giving you totally wrong advice and pictures are incredibly helpful.
Gloucester England? Or Gloucester Mass?
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solid-print-3d 30
.2mm wall thickness (or layer height)? I think you're supposed to use wall thickness in multiples of .4mm (nozzle diameter x #shells), not that it would help the infill problem.
One thing I do to some prints that starts vibration bad is to raise the temperature for a minute or 2 and slow it way down. The hot tip seems to soften the layers underneath and flatten out the high spots that are creating the vibrations. Obviously, as the head moves over bumps (several on an infill) it will push the bed down on each bump. 50 bumps in a row, at 50mm/s and it just goes crazy with bumps. If you heat up a bit, and slow it way down for a couple of layers, you can get back on track in future prints.
Making sure you have the right wall thickness set in Cura, as well as making sure you don't have any external airflow cooling the front of the part, should help with the front warping. An alternative would be to cover the front of the Ultimaker with something (lexan, cardboard, wood, etc). This should help keep the interior a little more uniform in temp.
if you posted a pic of what Cura shows you in Layer View, it might help to better understand what's going on.
EDIT: I had no idea the incorrect shell size would also affect infill as gr5 states below. I learned something today
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