<HTML><FONT FACE=arial,helvetica><HTML><FONT SIZE=2 PTSIZE=10 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Yes, partly, though even mechanical encoders generally don't skip unless they're REALLY spinning - not the sort of turn you could give them with your fingers, anyway. (The main incentve for optical rotaries is physical wear)<BR>
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A rotary encoder makes across both pairs of contacts (Either A-B and B-C or A-B and C-D depending on design) in both directions - both signals are always sent, only the order changes. <BR>
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In a Knitter, though, only the A-B *OR* the B-C pins make, depending on the direction of turn. This needs a mechanism that allows the connection to the common contact to jump over the 'C' contact if turning one way, or over the 'A' contact if turning the other. This mechanism, unfortunately, also apparently allows the common to sometimes even jump over the contact it isn't supposed to jump over.<BR>
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Richard <BR>
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In a message dated 2/5/04 4:59:43 PM Pacific Standard Time, mikebrogley@ieee.org writes:<BR>
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<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Isn't this what led to the use of optical encoders? Or do they skip too?</BLOCKQUOTE><BR>
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