Timo Kandra

Hi, I am trying to figure out the most effective way to export a scan. Ther is pdf and image export but both do now include a scale bar (and a legend where the high to color information can be obtained) Additionally the export does not work with: pixel ratio != size in nm ratio What is the best approach to generate a pdf or png from the scan?

Hi, I would like to change the approach method to not fully retract (currently the tip is fully retracted while doing the approach steps.) The reason is, that I need very high voltages for a working z axis coarse motion. Adding the scan retract ontop of the high voltage slipstick might exceed the piezo voltage limits. Is it possible to easily change the approach so it does not fully retract but instead goes to a maximum voltage. (so that the scan channel does not output +-10V while doing the slipstick...

This is phenomenal and exactly what I was looking for! Thanks!

I would like to have a much higher resolution in the scan line (x-axis) but a low amount of scan line. For example 512data points per scan line and 64 lines per image. This can easily be set in the main window. However if i choose a range that is square (300nmx300nm for example) I would like the scan to be displayed as a square image as well. Currently it would show a 512:64 aspect ration image in the scan preview window...

I did a tunnel gap simulation: All information can be taken from the images attached (using a 100Mohm gap simulator and an according bias gain - the resulting current can be seen in the HUD) It indeed is inverse/does not behave correctly without any piezo and amplifier involved: setpoint < measured current ------> extends the viz !!! setpoint > measured current -------> retracts the viz !!!

If I set the current setpoint to 0 this happens:

Since the issue with the visualization is still not fixed I am adding screenshot for those scenarios as well: I am using the auto tab and slipstick Z movements to get out of the tunnel contact and to fully crash the tip. The current shows what I have done for which screenshot. For all of that I am using the correct feedback setting (Z-servo Neg) Therefore the tip is fully retracted where I have the saturated current 100nA and the tip is fully extended where I am out of the tunnel contact (<100pA)...

I also did another test: tip is in tunnel contact. In the patch rack I switch von Z-serve Neg to Z-servor -> with Z-serve Neg the tip is held at the tunnel contact with Z-serve the tip is pulled out and the current is read as ~0A. This lets me conclude that my setup is indeed Z-servo Neg. What is weird is that setting it to Z-Servo shows the tip to be fully extended but also shows a tunnel current of 0... That is the same visualization bug.