Probe Making
Cut a 5 ¼ inch length of carbon fiber tube , a 6 inch length of FEP outer sheath material , two ¾ inch pieces of inner end - cap material , and two ¾ inch pieces of middle end - cap material .
Place the inner end - cap material around the sample tube , slide up to an appropriate height so that there is enough space for the carbon - fiber tube below , and so that the overall sample tube length is correct , and shrink it on .
Shrink the middle end - cap material over the inner end - cap .
Slide the sample tube into the carbon fiber tube .
Similarly , shrink on inner and middle end - caps onto the sample tube below the carbon fiber .
Shrink a single piece of FEP sheath material over the whole assembly .
Cut the end on a slight angle .
