MATTHOPE.ORG

January 29, 2009

Speaker design

Category: Commons — Tags: — matthope @ 5:11 am

2000 watt speaker stack, 18″/15″10″/1.75″, fitted with old school chinese grills.

Ended up choosing this open smashed pattern as the others would degrade the high end/mid range frequencys to much. The grill material is either 12mm ply, ABS or 3mm aluminium

January 27, 2009

Work bench threads

Category: Commons — Tags: — matthope @ 12:15 am

Here using a new CAD program i was able to design and cut 12mm ACME threads with data i found online, bolt science etc

The entire model can be made in 3d with very little annotation needed for machining

January 22, 2009

More work. . .

Category: Commons — Tags: — matthope @ 11:32 am

Resolved a few problems on this mini project, but still stuck on the compound joint where the handle juts out. . .

Got the joint detailing down now, just hope i can get these screws (Counter sunk,flat, metric,socket cap screws) in China

January 15, 2009

Recent ideas

Category: Commons — Tags: — matthope @ 5:23 am

Imminent sand dunes

Fixed terrestial optic

Black hole – light dump

Phased acoustic absorbers

Sonic dump

January 13, 2009

Laoban sound system

Category: Commons — Tags: — matthope @ 3:55 pm

Here are some preliminary speaker cabinet designs for the Laoban sound systen in China


3 way 850 watt trapizoidal, 15″ vented, 2 x 10″ mid, 1.5″ high f horn. All Chinese built

18″ scoop designed modified for the Chinese driver and all modular CNC construction. Not really a fan of scoops but they work well with dubstep. See Laoban at Fabricatorz

Anechonoid

Category: Commons — Tags: — matthope @ 3:11 pm

This looks like a listening device but is acutally a echo free hemisphere “quiet zone”- inverse sound mirror. The pyramid shaped spikes absorb incidental sound waves, thus providing acoustic sheilding to one side of the listeners head. The center being at approximately 1.5m high.

This idea is a cross pollination between the geometries of the granite sound mirror i built in China and the Isolation chamber/Faraday helmet/throne (joint project with Jon philips) aka rejon.org. In order to work the spikes need to be made from a highly absorbent material that is also durable.

Parallel universe

Category: Commons — Tags: — matthope @ 2:17 pm

Duing the Christmas break I found three tools/pieces of equipment in my dad’s shed to reverse engineer into medium sized free standing sculptures. The sculptures will be made from machined/hand finished steel, neatly connected with countersunk black oxide bolts.


Workmate

Step ladder

Hand truck

Whilst working on these and measuring the originals i realised that these tools had migrated from the industrial world and migrated to a domestic setting.