I find the manual calibration box figures for thickness of the support material to be off by several thousandths for our FDM 2000 machine. We usually end up with somewhere around .007-.008 or even less to give good separation of support material. The calibration box test is only a starting point for us. I use a 1" test square with a base and only a few model layers to give a quick read on the results of the tip offset fiddling for support separation. I have a feeling that each machine may be slightly different and you have to get to know it personally.
We have also found that changing the parameters of the support face layer raster to a finer road width helps this, and gives a better finish on the part face.
Ron Franklin
>> Chris,
>> Other options to try may involve slighlty changing the temperature of
>> the support (base) material. Another "trick" requires keeping a close
>> eye on the first few layers.... Try pausing the machine and bumping up
>> the "Z" level using the control keys - just enough to prevent and
>> minimize the area of the next layer from sticking (thermally adhering)
>> too much! .......... Good luck!
>> Jim Pike
>> Chris Derdas wrote:
>> >
>> > We own an FDM 1650 which is controlled by Quickslice 4.0 but although
>> > the XYZ offset calibration reads OK we cannot remove the base from any
>> > part . We have just changed the tips (T12) ,but nothing seems to work I
>> > would welcome any feedback
>> >
>> > Thanking you in advance
>> >
>> > Christos Derdas
>> > Research Assistant
>> > LABORATORY FOR MANUFACTURING SYSTEMS
>> > DEPARTMENT OF MECHANICAL ENGINEERING AND AERONAUTICS
>> > UNIVERSITY OF PATRAS
>> > PATRAS 26110, GREECE
>> >
>> > For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
>> For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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