Sunday, 7 April 2013

Sanding drawer substrate material

Had to make sanding trays to sand the drawer parts through the drum sander at work. Parts ranging around the 300mm mark in less in length you tend to want to sand them in a sanding tray. With the sanding tray you just have to add the sanding trays thickness and the actual part thickness.

What I'm doing here is sanding some lip edges that will surround the tray. All this will do is prevent the parts from moving off the tray while being sanded.

The edgings will go on either side and one at the back. The front section does not have any edging.

Pre drilling the holes in the edging and counter sinking them.

Used F-clamps to hold down the piece when screwing screws into it to attach it to the base. For extra strength also used wood working glue to attach the edgings to the base. I just used some black wood that I had lying around in my work shop and some scrap particle board.

Edgings attached to the base.

This is how the parts will sit in when being sanded through the drum sander. I wrote down to add 16mm due to the base on the sanding tray.

These parts are the drawer sides and backs. They are currently at 12mm. They need to go down to 10.8mm before the veneers are laid. Each veneer face will measure up to .6mm.

I needed to make up another sanding tray for the actual drawer bases. The edgings for the sanding tray had to be thiner since the bases were being taken down to a thiner thickness.

The base was just from scrap MDF that I had lying in my work shop. I used black wood scrap also for the edgings. The edgings needed to be less than 4.8mm. This is what the bases needed to finish at before veneers get laid down.

The edgings finished at 3.7mm in thickness which was machine down on my thicknesser in my work shop.

Pre drilled, counter sinked and now applying glue for extra bonding strength.

Clamped down before drilling screws in to attach edging to MDF base.

Base finished. This is how the parts will sit in the sanding tray.

They can also sit like this in the tray. It really depends on the grain direction.

Remembering to add the base measurement. The base for this sanding tray was 19mm.

The base for the drawers had to finish at 4.8mm. Its finished thickness when veneers added were 6mm. Each face measuring to .6mm

Sanding the parts at work. Now the drawer fronts also had to be sanded as well before veneering. They needed to finish at 14.8mm. The finished size for the drawer fronts was 16mm. So each veneer face was to measure to .6mm. I sanded them in the same tray as the drawer sides and back.

Starting measurement for the drawer sides and back including the base measurement for the sanding tray.

Starting measurement for the drawer fronts and sanding tray thickness.

starting measurement for the drawer bases. Dow the drawer bases were at 9mm so this was going to take a while to sand. Each sanding run needed to be .5mm and each sanding run it had to run four times due to there being 4 bases.

Drawer bases sanded and are now ready to have the veneers laid down.

Drawer sides, back and fronts sanded and are now ready to have veneers laid down.

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