ribber

2018 Dec 29 - Ribber Problems

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Ribber problems... Legare 400 using 72 cylinder and 36 ribber setup in 1x1 rib. Indiscriminate problems with previous row stitches (noted before but not solved). Machine timed. Yarn carrier correct height. Normal weights. Ribber needles misbehaving swapped out and later in without repeat problems. Same needles not misbehaving predictably.

SOLUTION:
-replaced timing screw with better fitting cylinder screw, nut and tension washer (won’t undo itself with use)
-lowered ribber a little
-re-adjusted yarn carrier to cylinder and ribber ensuring horizontal ribber needles cleared yarn carrier while yarn feeding was correct.
-re-timed machine 2-3 times over all.
-used sock yarn weight scrap for project specific new style of cuff down start
-slow cranked 10 rows to identify final 8 ribber needles trying to pull yarn into ribber slots

Problems noted (hindsight is always 20/20):
-prior ribbed stitches were getting hung up on horizontal latches not clearing off to form new stitch.
-some ribber stitches were being pulled into the machine with open latches staying open
-ribber stitch latch amputations
-dropped cylinder needle stitches, incomplete ribber needle stitches and dropped ribber needle stitches
-timing screw noted loose with securing nut undone

It hadn't occurred to me to use my camera phone and look under the ribber from the floor up to see why a ribber stitch was not completing/coming off the horizontal needle into the worked piece. A couple camera shots at re-start number 8 or 12 (?) noted the worked 'webbing' easily completely disintegrates with dropped stitches causing no material to pull down new stitches. Basically it all came down to timing and naughty needles.



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2018 Dec 18 - Ribber Combinations

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My vintage Legare 400 came with a 54 and a 72 slot cylinder and a single 36 slot ribber dial.

Obviously when the regular (vintage) approach was to use a ribber with half the slots of the used cylinder, the 36 slot ribber goes with the 72 slot cylinder - HOWEVER - you can ALSO use that same 36 slot ribber dial with the 54 slot cylinder.

Are you as mathematically confused as I am with this? (It’s ok - an easier approach is simply to align the parts and see the common slot alignments - OR review the ribber/cylinder reference chart(s) that sometimes were printed in the manuals)

There was a time I used to worry about exactly which combinations matched mathematically with regards to cylinders and ribbers. Too much thinking!

The photo above shows that indeed they function together. When using a 1x1 rib pattern it mathematically works. However when we go to the 1x3 (1 ribber/3 cylinder) setup you will find that 3 does not divide evenly into 54 - which is OK. Fudge it. I won’t tell and your sock owner won’t know unless they peer way too closely to the sock.

:)

July 27/20 EDIT: See the images below to further demonstrate that you can make any combination (Mock rib or regular) you really don’t have to be mathematically 100% divisible on your sock if there is a needle or two not in the right combination unless you choose to look for it. Click on each image to see a larger version.

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