YouTube video series by Bill Bird showing and explaining the lasting process
Part 1
https://www.youtube.com/watch?v=j4axYE-KEZs
- insole already done
- took the insole off and traced it for the sock lining
Heel Stiffener
- cut out from pattern
- matches the quarter pattern
- notched orientation mark for medial side
- lateral side is lower than medial due to ankle bones
- 40 mm versus 46 mm topline heights
- back height 1/5 of last length, not including the insole
- add 3mm for shrinkage
-
2:14 skiving
- sharpened the knife already
- about 2.5 mm thick to start, done on skiving machine [2.5 mm is between 6 oz and 7 oz]
- full thickness in the middle
- soaked for about half an hour in water, stored between newspaper [AKA cased]
- top skive
- flesh side
- straight taper on top skives
- don’t want to feel bumps or lumps on the foot
- fine feather edge at top
- [skiving over a small marble block]
- feel for bumps and ridges with fingers
- to end up below the topline by about 3mm
- hammers to the bottom of the last to find excess below featherline
- then marks the hammered line with a pen
- about 6mm longer than featherline on the medial side
- bottom skive
- twists the blade so it’s cupped, rather than straight
- still skiving the flesh side
- cupping helps wrap around the bottom of last, make flat seat
- want full thickness at the bottom of the heel cup
- marks side length end points behind joints with thumbnail, then cuts
Knives
- have to be ground thin
- from Algeos [???]
Rivets [Lasting Tacks]
- 1 inch
- 18 gauge (1.2)
- specifically designed for lasting
- white box marked “IVI”
Inserting
- maroon, chestnut-grain calf
- Dutch orthopedic linings
- some pig lining at heel
- suede-backing counter from upper leather
- open up, check that stiffener will fit
- pull the stiffener hard lengthwise
- put midline down the seam
- check that no interference
- tuck up behind the tabs of the derby quarters
- snug fit
- Tommy Simons would add loose stitches to stop the stiffener falling down as it’s lasted
Shoemakers’ Paste
- best: Metrotex 047
- from Algeos
- pastes often a kind of white glue
- in a pinch, make up wallpaper paste, or white flour and water
Pasting
- paste between stiffener and upper, quite generous
- create a “laminate shell”
- upper, stiffener, and lining
- very firm
- “long-medium stiffener”
- don’t see long stiffeners in manufactured shoes due to cost, costs 3-4 times as much
- paste between stiffener and lining
- always paste to the outside, since easier
Part 2
https://www.youtube.com/watch?v=1bactM8RpY0
Powdering
- later on will use contact glues
- don’t want to glue the shoe onto the last
- make it easy to get the last out
- from plastic bottle with perforated lid
Laying On
- final check that notch on the medial side
- can’t switch sides once shaped
- leave the back height of the topline above the cone [in preparation for hoisting]
- want a lot of tension
- make it conform
- want a strong bond between stiffener, upper, lining, force the paste through
- upper has silver lines down the middle for alignment
- [using Swedish-style lasting pliers, look like Schein, handles wrapped in what looks like black eletrical tape]
- pull the toe lining first
- more tension on lining than upper
- tack down, bend the tack over
- might come down further now than it will be in the end
- next: pull the outside joint, then the inside and tack it
- will pull these tacks out [drafting]
- more tension on lining than upper
- working on lap, so can turn the shoe over and check it
- if apron and walled last, might need more adjustment to sit right
Hoisting
- pulls down to back height pen mark
- really important: strong tension on the clip
- mirror-faced hammer over the clip
-
I’ve got my strop, I’ve got my knife, and I’ve got my mirror face, and I can shave.
-
never use a hammer that doesn’t have a mirror face on leather
- marks the leather
-
- single rivet to make sure it doesn’t slide down
- tiny hole through lining shows that has been hand-lasted
- bone folder to mold the stiffener while it’s mellow
- leave a piece of lining up above the tongue so can tug it
- tacks it to the top of the cone
- about an hour to make a pattern for each last
- if you pull the last out and the upper creases or twists, you had to pull it around the last to get the shape
Heel Lasting
- pull on lining slightly tighter than upper so it curves over
- pulling on the upper pulls it away from the last
- get tension on lining, then lay the upper down
- not a lot of tension on the upper
- rivets at the back, about 6mm behind the featherline to let the leather lie flat
- “rivet” versus “tack”:
- long enough to hit without hammering your fingers
- long enough to lift it up and get glue under
- Bending puts more tension on the leather
- “gather the pucker with each rivet so that it’s so small that if flattens out”
- until about 20 years ago, could get pure-iron rivets that bent more easily
- compressing the leather
- neat featherline
- does one side for a few tacks, then the other, to avoid an imbalance
- flip the shoe so the toe’s toward or away, depending on your dominant hand
- glue allergies: shoemakers pastes just starch
- will use neoprene, since dries quicker
- shank
- for a narrow waist, like a ladies’ court show, want to stay well in toward the midline
- doing a square-waisted derby, so doing 6mm in
- rivets not so close, since “not turning a corner”
- really snug lining under the arch
- press rivet with finger and won’t slip before you can hit it
- later: side linings
- trims the excess leather, stiffener, and lining all together
- strops on paddle strop
- 6-8 mm in from the rivets
- gluing down
- use bone folder or heel of shoe knife to lift up the lasted material for gluing
-
neoprene
- from Renia
- non-toxic, so no fume extractor
- longer opening time
- more difficult to use “which is why they make the toxic one”
- “if you do it properly it’s just as strong”
- heat gun for a few seconds to dry it quickly
- flattens the lining down with back of the knife
- uses the peen of hammer (calls it the “wedge bit of the hammer”)
- stiffener has paste on it already, so doesn’t neoeprene it, too
- more neoprene between stiffener and upper
- rivets
- through the waist and straighter parts, takes the rivets out, keeping them straight for reuse, hammers the material down
- bends rivets down at heel and toe with hammer face of the lasting pliers (not the mirror face of the hammer)
- “like a little cage”
- pulling the upper as they bend
- “little ridge” between rivets
- [splitting pleats] at the heel seat
- check that the topline hasn’t been pulled down at the heel
- hammering the stiffener
- hammer the vamp-quarter seam into the stiffener
- feel with hands for bumps
- working the paste into the material
- hammering the featherline around the seat so it’s flat
Part 3
https://www.youtube.com/watch?v=JMPxmXKGrDc
- uses electrical-style side cutters to remove rivets
- sort straight and bent ones
- lasting the other shoe
- peel back upper over toe
- too much tension on lining “creates a drum” over the toe box
- “just get it to lie down”
- upper takes on “saddle shape”
- hard to do if you’re “working on a peg” [i.e. stand lasting or working on a lapjack]
- next rivets halfway between toe tip and joints
- “only need to get it flat in those first six millimeters”
- can wiggle the leather around with the lasting pliers until there’s no crease
- get a feeling for it
- Tommy Simons registered blind when learned from him
- move to other side before continuing would twist the upper on the last
-
Particularly if you’re doing a big run, the patterns would be cut so you didn’t have nearly as much skirt [i.e. lasting allowance], because that’s quite a lot of leather to waste. But when you’re doing a one-off it’s better to have the extra leather, because you don’t know how much it’s all going to stretch.
- leave about 8 mm
- with toluene, would be “floatin’ around lookin’ down on myself from the ceiling by now”
- “take you off to cloud cuckoo land”
- [while pulling and sorting rivets:] “now they’re not making steel in Redcar, we might run out of steel”
- don’t want lots of tension on lining at toe, might pull away from toe puff
- toe puff
- cut from belly
- have standard patterns, made in bulk
- come back 2-3/8” or 62mm for a size 10 (UK)
- same on both sides
- too far back: throw a crease on top of the big toe
- too short: better, but don’t have enough toe puff
- 50-55 mm for small shoe
- skiving
- same was as stiffener
- flat skive
- don’t want a visible ridge where the puff ends
- zero skive
- stretch over the last
- tap over the featherline to imprint a line
- add 8 mm to 1 cm as lasting allowance
- long piece of wood for a cutting board
- apprenticing: 8 guys in a tiny room in the middle of SoHo
-
concave skive
- large thin surface to bond
- but thick right near the edge
- can fine-tun shape with leather
- paints paste on the lining, a little on the puff
- stretch it in place with thumbs at side edges
- lots of paste on the lasting allowance
- using paste because it’s very wet
- while wet, easier to last
- 2.5 mm thick on the edge, but skived so it settles into place
- down to .8 or .9
- shape with hammer
- ideal moisture
- too wet: dents
- ideal: mellow, workable
- if leaving to dry overnight, pull the upper down so it doesn’t crease
Part 4
https://www.youtube.com/watch?v=WFADOzrc30Q
-
toe shaping
- about 2 hours or an hour and a half drying
- toe puff dry, but still mellow
- hammer or bone folder to mold
- too wet: bounces back
- too dry: doesn’t move at all
- side linings
- flipping down vamp
- paste toe cap, edges of side linings where they overlap the cap and heel counter
- make sure you don’t crease the side linings
- make sure the caps are the same
- draft the second shoe so it’s under tension
- tape measure from featherline to stitch line
- adjusts the second to match the first by pulling harder
- check the measurements a couple times during lasting
-
10:38 splitting pleats on the second shoe
-
the one [rivet] that goes between the two [previous set ones] just flattens the little ridge, and then when the leather’s dry, you’ve got a nice, flat surface to sew your welt onto
-
- leave on lasts for a week, at least 3 or 4 days