DPAP2 settings      
Make model travel (mm) step (µm) steps/unit N B OFF Amp motor / unit Nb of units total motor comments
HUBER small 10x10 2,50 400 A A 0 1,80 2 1 2 vertical and horizontal gaps
HUBER big 20x20 2,50 400 A A 0 1,80 2 1 2 vertical and horizontal gaps
RISØ RISØ 20x20 0,50 2000 1 1 0 0,30 4 1 4 DPAP2
HUBER HUBER 20x20 0,08 12576 1 1 0 0,45 4 1 4  
ESRF ESRF 0-6 0,81 1230 1 1 0 0,45 2 1 4 gap opening
±7.5 0,32 3098 1 1 0 0,45 2 offset translation
NEWPORT Knife edge UT100-50
Z=50/Y=50		 1.00 2000 2 2 0 0.55 2 2   piezo table range=120?
slit/rot ztrans/ytrans
POLYTEC PI   rotation     7 7 0 0.25 1 1 1 DPAP1