The lofting is based on the wood products designed on the construction drawings. The woodwork structure is drawn according to the full scale 1..1, and the sample is made into a sample board (or a sample stick). The sample board is made of pine wood, and the double-sided planing is about 25cm thick and the width is equal to The width of the door and window rafter is wide, and the length is about 200 mm larger than the height of the door and window. After careful checking, the staking is the basis for the ingredients and the cutting and scribe. In the process of use, pay attention to keep the scribe line. Be clear, do not bend or break it.
(2) Ingredients, cutting materials
The ingredients are based on the stakeout. Therefore, to calculate the size and quantity of each part, list the ingredients and make the ingredients according to the ingredients list.
When making ingredients, the raw materials should be selected. There should be rotten, sloping and thrifty wood, which should be avoided as much as possible; untidy wood can not be used. Careful calculation, length and length, first with long material, followed by short material; first with frame material, then with fan material. When the door and window materials have a smooth bend, the curvature is generally not more than 4 mm, and the bender should not be used.
When formulating, it is necessary to determine the processing allowance reasonably. The wool size of each part is larger than the net material size. For details, please refer to the following:
Section size: 1~1.5mm for single-sided planing and 2~3mm for double-sided planing. When machining, the single-sided planing light is increased by 3mm, and the machining allowance for double-sided planing to increase the 5mm length allowance is shown in Table 18.104.22.168.
Door and window member length machining allowance table 22.214.171.124
Component name machining allowance
The door is 7cm according to the drawing specifications
Doors and windows according to the map according to the drawing length 10cm, no length when walking 4cm
In the doors and windows, the heads and the mullions in the window sills are 1cm long according to the specifications of the drawings.
Door and window fan 放 4cm according to drawing specifications
Door and window fan head, glass tweezers lengthened by 1cm according to drawing specifications
If there are more than five heads in the door leaf, one can be considered as half.
The door core board is extended according to the drawing and the clearance in the fan
When paying attention, pay attention to the defects of wood. The thrift should avoid the parts of the eyes and the hoe, prevent the chisel or the hoe from being broken; the knotting position is also prohibited from being thrifty.
Cut off and saw the wire according to the size of the wool on the selected wood. In view of the loss of the sawn wood, the loss of 2-3 mm is generally left. When sawing, the saw blade should be straight and the end face should be flat.
(3) planing material
When planing, it is advisable to use the clear lining as the front side, and the narrow side of the shovel as the front side. For the door and window frame, the shovel and the head can only be planed, not facing the side of the wall; doors and sashes The upper head and the hoe can also be planed on three sides, and the side of the raft is to be installed according to the size of the seam.
After the planing, the fans of the same type and the same specifications should be stacked separately and aligned up and down. Each front side meets and the bottom of the stack is to be leveled.
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