Many different tools have accumulated. Stored as hit, mainly in the form of a low-rested heap in the closet, it was not convenient to use.
At some point, the stars were visible successfully, moving and the free time appeared to make the "drawer" on their own, taking into account all the accumulated ideas and requirements. That's what came out of it:
At first, it was constructed in the head, I realized that the project was relatively complex, you need to fix on paper, with precision sizes. Fixed:
I realized that this is not enough and you need to attract computing techniques. I downloaded free Google Sketchup, spent half an hour to study and started design. The dimensions with an accuracy of a millimeter caused a smile, nevertheless decided to focus on high accuracy and later turned out to be right. That's what happened:
In the figure, the wooden frame, the calculation of the folding shelves and the traveling box.
The actual manufacturing process is not particularly captured, as it did not think to publish.
1. First saw the board (20 x 900 x 2000 - 2 pcs.) And twisted screws (80 mm) Wooden base.
2. Then from an aluminum corner chopped elements of boxes, and from aluminum strips - strips for the folding mechanism of the boxes (frogs). All aluminum parts are connected by rivets (4 x10, maybe a little longer). Details of the folding "frog" ribbons with washers. The order is: rivet, washer, strip, washer, corner of the drawer. The order is selected experimentally, if you connect rivets differently, rivets are shared.
Actually below almost a finished box:
It remains only the walls to do:
After graduated from the main works, the problem of which did not give the problem when designing significance, hoped that she would "carry."
The middle box, in the unfolded form and with the load on the upper shelf - twisted.
To solve the problem, strengthened the side sides of the extended aluminum hollow bar (I don't know how it is correctly called, a sort of rectangular tube), which in addition to the gain also began to carry the function of the handle when laying the shelves. Propal on large rivets 4.8 x 18, 4 pcs. On each compound
result:
A few more comments:
- I will definitely check what goes into the chips, i.e. Instead of one band draw 2, leaving 1.5 -2 mm per propyl (I saw the electroller), then it is more convenient to cut and more precisely;
-Be neat with the "Frog Mechanism". Distances between holes in the connecting strips and side corners of the boxes must be as accurate as possible. Otherwise, the shelves will not be laid out. It was mistaken in 2 details for 2 mm and a few hours broke the head why not fully unfolded. Drill holes in the plates is better at once in all, squeeze the stack with visets or clamp and drill.
Materials, I don't remember exactly, approximately:
Name number of quantities. Suymma
(p) board 90x20x20002ct70
Corner 25 x 2510m360Aggings
15x151m20Fofil for amplification - 1M80
List DVP1St150
strip almm. 20 mm3,5m140
strip almm. 10 mm2m50
Retractable mechanism 3x sts1sht250
Retractable mechanism of Lower Yashik1St50
Holder for screwdrivers1sht80
Screws, Bolts, Washers, Nut 100
Wheels4St80
Rivets2PU50
1500.
Did about a week, at home, on a stool. It would also be necessary to make the front panels on the boxes, but the fervor is already a puzzle. The second time probably would not have decided to repeat all this, and I recommend you thoroughly think about several times :)
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