I cannot remember why John Toll had the instrument changed other than he was very used to Delrin.    Delrin is a brand name DuPont gave to what is basically acetal with something added to i think make the material stronger.   I do not fully know the processes but others will I'm sure.   Celcon i have never really got on with but that could well be me and others seem to get good results.    I do think you will be wise to carry out your experiments with feather, Tilman is very experience over such maters.     



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Sunday, 3 January 2016, 16:46 +0000 from [log in to unmask]  <[log in to unmask]>:
>So Michael, can you share what your experience has been regarding acetal and quill, and perhaps also the reason(s) why John Toll returned that instrument from quill to plastic? For someone such as myself who has used only delrin for decades, these accounts are invaluable as I consider the changing over to quill. I am sure others are finding this all very informative as well.
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Note:  opinions  expressed on HPSCHD-L are those of the  individual con-

tributors and not necessarily  those of the list owners  nor of the Uni-

versity of Iowa.  For a brief  summary of list  commands, send mail to

[log in to unmask]  saying  HELP .

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