User talk:Huayiwood

how to build a mdf abc block.

1 Determine size of the block. Normally MDF board we purchased is in size 122x244cm, to make full use of material, we make abc block in size 23.5x23.5sx23.5cm, thus the mdf board can be cut into 5x10pcs, almost no material wasted. 2 Saw mdf board. Each block consists of 6 pcs of board, they are four walls, top and bottom. If you plan assemble block corners by finger joint or groove and tongue joint way, then cut all 6 pcs in size 23.5x23.5cm. Here we adopt most simple direct joint way to assemble blocks, thus need saw two walls, bottom and top in size 23.5x23.5cm. As MDF board 1.5cm thickness, saw two another walls in size 20.5x23.5cm 3 Cut letter. Determine size and style of each letter, then you need order at least one piece of plastic molding for each letter of above size and style, then use milling machine and these letter moldings to cut out the letters on mdf boards. Size 15x15cm for each letter would be suitable for 23.5x23.5x23.5cm blocks 4 Assemble the block. Brush the two long edges of 20.5x23.5 board with glue. Take one 23.5x23.5cm board, join right side of the back with one edge with glue. By the same way assemble all the walls. Hammer thin nails (2cm at least) from the right and left sides of 23.5x23.5cm board, so the all four walls will not collaps before glue dry.

5 Use elastic fasten the block for 30minutes until glue dry. Of course it would be better to use pressure machine to fasten the four walls until glue is dry. 6 Brush top and bottom edges of block with glue then cover with another two pcs of boards, nailed also. Use pressing tool to press bottom and top tightly for about 30 minutes.

7: After glue dry, sand surface with sand-paper, so there is no spur left and the surface smooth enough for painting. 8 Paint the block with bottom paint. Sand block with sandpaper after bottom paint dry. Two times of bottom paint and sand twice. 9 As we need each side of block one different color, we need paint each side individually. Take the top side for example. Cover the four joint walls with adhere tape, only leave the top side open, so the paint will not spatter on other sides, then paint it with green or any you like color. After it is dried, cover the letter with former plastic letter molding, and cover the four sides of top with a same size wood frame, only leave the hollow parts open, then paint the hollow parts with white. Now one side finished painting.

10 other five sides paint same way as above.

By this way, we can also build number blocks or abc blocks of other sizes.