I just wanted to thank whoever wrote the crimping faq: http://wiki.diyfaq.org.uk/index.php?title Κble_crimping
I bought a ratchet crimp and some crimps but neither came with instructions so I was not quite sure how to use them.
I didn't know whether you had to crimp each end of the butt crimp (which the wiki tells me I should do) or whether I needed just one crimp in the middle (wrong).
When I did some practice crimps, the plastic got "chewed up" and I wasn't sure whether that was supposed to happen, but I see from the photos on the wiki that that is right.
So thanks very much, that page has really helped a complete crimp beginner.
By the way, are all crimps equal or are some better than others? I bought a selection box from CPC but find the central metal insert can slide when positioning the cable. Do all of them do this or is it just that mine were cheap and nasty?
I have encountered non-insulated crimps in repairs in the past. Could the page be updated in the future to give an introduction to these?