Detailed explanation of vegetable tanned leather thinning techniques to achieve a bulging effect

Author: Flato, WeChat: k9999w11 In response to the request of leather friends in the previous issue, I took the time today to demonstrate several hand-sharpening methods of vegetable tanned leather. The first is beveling the leather edge, the second is cutting the leather edge, and the second is cutting the leather edge. The three types are large slices and thin slices. Similarly, 801 thinning is skipped, and only hand cutting is introduced here.

The picture above is this tutorial Tools used: thinning knife, groover, wide shovel. 1. Beveling the leather edge

First draw a reference line at the width you want to thin.

The blade and the line are at 90 degrees, Cut along the bottom of the reference line at an angle of about 20 degrees to the leather surface. From bottom to top, follow the baseline, walk slightly to the end, and cut out the knife mark.

The second feed, slightly Use force to enter a depth of about 2mm. Do not change the angle between the blade and the leather surface. Slope downward about 20 degrees. Still maintaining a depth of 2mm, slowly cut from bottom to top.

Go deeper again for the third time, 2-3mm, with the same method as above.

Repeat the above steps about four or five times until the entire leather edge is pushed down, and the leather edge is beveled. The key points in the process are to ensure a small error in the angle of pushing the knife each time, the force should be balanced, and the hand should be steady. You can master it by practicing multiple times. With good technique, you can peel off the skin in about 2-3 times.

Finally peeled The side of the edge looks diagonally downward, resembling a knife edge. 2. Cutting off the leather edge. Cutting off the leather edge is to process the leather edge into a stepped shape, not slanting downwards, but stepping downwards. It is suitable for the bulging effect of a single layer of vegetable tanned leather.

When you want to make a break Draw a line where you cut.

The ruler is against the straight line , hold the groove digger against the ruler, and dig out a groove from top to bottom. If the leather here is thicker, you can repeat this step several times until the depth is sufficient.

After digging the trench Effect. Two methods are introduced below for cutting. The first is to use a thinning knife, and the second is to use a wide shovel. 1. Thinning knife

Same as beveling, use a thinning knife along the edge of the groove to cut off the skin edge that needs to be broken.

After peeling, you can find that the edge of the leather is along the edge The groove is diagonally downward (high near the groove, low at the edge of the skin), and the cutting needs to be stepped, so use a thinning knife below to flatten the high places.

As shown in the picture, lay the thinning knife flat, with the blade and groove Parallel, feed from the bottom, along the depth of the groove, push the raised skin straight up to the end. The cutting is completed.

After cutting, the upper and lower parts are stepped. 2. Wide shovel

< img src="http://img1.pixiaojiang.com/59313f5005432161.jpg-90_e600.jpg" alt="">

Put the wide shovel flat, with the left side close to the dug groove, the bottom and the leather surface Parallel, the depth of the shovel should be consistent with the depth of the trench. From bottom to top, push straight to the end to complete the cutting.

To achieve the best cutting effect, choose different tools according to personal habits. The final effect is the same, and there is no difference between better and worse. 3 , The method of thinning the whole piece is the same as that of beveling. It just repeats the steps of beveling infinitely until it is thinned to the desired size. It is clear at a glance in the two pictures below.

That’s all for the thinning methods in this issue, three types Commonly used methods, among which oblique cutting and whole-piece thinning are more common. The method of making crocodile leather watch straps uses oblique cutting (the bulged padding area) and whole-piece thinning (crocodile skin thinning). I haven’t seen it yet Friends can take a look. http://www.pixiaojiang.com/topic/show/126

Thinning and drumming