A2 Commercial Design – Bertie Johnstone
Centre no. – 62415
Candidate No. – 4201
Design Unit 4 : Commercial Design
Unit 4 A2 Commercial Design – Stereo Storage Quality of Manufacture: This page looks at the accuracy of my construction processes which have led to a very high quality end product.
These photos show the high quality of the bottom channel and the door wheels. The door overlaps the top and the bottom as it reciprocates from side to side. The cherry baton is perfectly flush
The top securing block was made using a milling machine with a digital readout to aid accuracy. The
with the rest of the shelf. The alloy channel is also countersunk flush to the surface so the contents do not get
readout was accurate to 3 decimal places which meant that the accuracy was 3000x my tolerance.
caught on it.
Both of the top securing blocks are almost exactly the same and fit perfectly into the top channel and guides the door as it slides very smoothly along the channel. The switch is countersunk into a 20mm diameter hole so it is flush with the surface
All the wiring the cabinet has been tied together and secured out of view of the
and less
user. There is no wiring that needs to be done by the user on assembly. The right
obtrusive.
hand picture show the 2nd shelf and the CD stop which join tightly together.
View from the rear of the cabinet as the backboards are
I cut the cherry baton for the front of the sides 2mm too short
also finished to a
so had to neatly fit a small chock into the gap and sand it flush.
high standard and
I also took 1mm off one end of all the aluminium tubes so they
well secured.
would fit better in the 25mm hole as they are 1” tubes. For the
These pictures show the quality of the decorative routered edge on the top panel and
foot I used a piece of 10x20 cherry and joined it using dovetail
the inside top corner where the pine batons meet and the backboard is attached. You
nailing.
are able to see how white the pine batons look in contrast to the black backboard.
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