Koma Sew Alcohol Lamp Cover
Wrapping a layer of protective cover on the surface of the item is to protect it on the one hand, and to make it more stylish and personalized on the other hand.
As a master of handmade leather goods skills, he will not give up any item that can be wrapped in a leather case.
For example, we received a set of buyers show of alcohol lamps:
The metal alcohol lamp is put on a leather case, which looks like a metal rock boy transformed into a calm and steady temperament uncle. The story is full of sense
At the same time, we also fully recorded the detailed production process:
Including leather cutting, edge banding, edge thinning, line drawing, drumming, chopping, cross stitching, stitching and other steps, so that friends can appreciate and learn.
Cutting y—utility knife, circular cutter, square, awl, pusher, wide shovel
Edge treatment - edge banding fluid, edge trimming knife No. 1, cotton swabs, sander strips, sandpaper, sanding sticks
Lamination—sander, white glue, squeegee
Line drawing - round leg spacing gauge, 1.5mm line crimping device
Chopping - 2+8 teeth 3.38mm method chopping, 2+8 teeth 4mm round chopping, cone, hammer
Suture - hand sewing needle, 0.45mm round wax thread, scissors, hand sewing wooden clip
Focus on explaining
Bend and chop
Cutting the drum decorative strips should be regarded as the most nerve-wracking part of our production process besides Koma Sewing.
Since it needs to be bent and pasted during bonding, flattening and chopping after pasting may cause the decorative strip to shrink or fall off after bonding.
Therefore, when cutting, you can cut with the help of a bending tool or a small backing plate, and follow the arc of the bend to ensure that the holes are aligned.
Of course, the easiest way is of course to machine-sewn "tap-tat-tat" to get the stitches done in minutes.
The easiest solution is... no trim strips!
The thickness of the top and bottom is required to be 2.5mm. When punching, punch holes from the leather surface to a depth of about 1.0m, and use an awl to pierce obliquely from the edge of the leather. The thickness above the hole needs to be the same width as the gusset edge so that the gusset edge and top/bottom form a flat surface.
Due to the consistent hole spacing, the length of the holes on the side wall and the top/bottom are different, and the number of holes is also different.
In the process of sewing, it is necessary to "steal the needle", that is, the holes with many side circumferences will be "empty seams", but it is not obvious after sewing.
It's a rather lazy approach.
If you need to achieve the same number of holes in the side wall and bottom/top, you need to consider the thickness of the side wall.
Because the cutting distance of the side is determined by the length of the punched holes on the side (different thicknesses have different lengths, the principle of concentric circles) and the number of holes on the top.
The calculation formula is: side cutting distance = side length / number of side holes.