Scratch Build – In Progress Megablaster 2010 work log (diy ghettoblaster)

Fitting the led scanner to it's place:



Some internal bracing. You can also see the battery compartment, finished box has more braces but I didn't take a photo of them yet.



I tried to make the parts as light as possible:

 

Wow thats pretty damn cool never seen anything done like this before.

I'll be watching this one Great work!

 

Really nice to se you on bit-tech. Been following your work since you first created some kind of air bubble distributor for a watertank....a loooooong time ago.
Really nice work on the blaster so far.

 

Thanks!

I noticed I hade made a mistake measuring. I made the cavity for carrying handle 10mm too deep and 20mm too wide. First I routed the areas through to save weight and then I added new plywood parts. Now it's really close to my 3d models dimensions.

Here's the problem area:



New "roof":


I'll do the carrying handle tomorrow.

 

Roger that. Good reasons!

 

Nice looking job so far as the every earlier project you have done.

You should make more case projects too. That embryo zero was first THE CASE MOD what i saw and made a big impression to me, actually that's the reason why i wanted to try to make something by myself too.

 

This is shaping up to be a fantastic project! Subbed You may just tempt me into pursuing something like this in the not-too-distant future, although at the moment I have too many projects on the bench

 

Today I made the carrying handle. This handle is mainly for the looks and it will be mostly carried on shoulder with a help of leash. So let the photos speak:

Here's the basis for the handle. It's 20x20mm aluminum with round corners:


Cutting plywood for the parts which attach aluminum to the box:




Can't have enough clamps!


Wooden parts are now finished:




My little sister trying to give box some scale:

 

That is seriously awesome!

 

That looks amazing...

 

Agreed!

 

Thank you all! (again ) I added the last part to finish the handle. Next step is to play with glassfiber filler and sand paper.

 

Looks really good!

Some questions though.
Is there a crossover included in that DIY kit you bought?
How many liters is your build?
The two upper holes, are they gonna be for tweeters or just basport?

 

Looks so huge... But if the final weight will be only 8 kg, I guess it isn't so bad.. Also one can handily balance it with a ~8 kg beer case on the free hand

 

I'm usually not a big fan of wood at all, but this looks truly awesome You definately got a follower here.

 

Thanks!

Sleepstreamer:
I don't like wood either but it's cheap and easy to work with. Propably I most dislike wooden stuff with soft corners I like sharp edges! Luckily there will be no wood visible at all in the final product. Wooden case will be covered with 1mm black glossy acryl plates.

m0rt:
Visaton kit came with crossover so no tears cried planning it. My build is about 21 liters internally for speakers. The kit should be built to 23 liters box but since it's a sealed design it's not critical. Anyway I add speaker foam inside which add's to the volume drivers see. Hole on the upper left is battery compartment. Right side will not have hole, both smaller "holes" will have fake grilles and the horn tweeter will be placed in the middle rectanqular opening. I think I'll place fuse behind the right upper grille.

Quick size comparison between Ghettoblaster V2 and Megablaster:

 

Here's how the electronic parts will be placed:

 

I have a small problem:

Box is finished what comes to wood work. I need to measure the box precisely to be able to draw the acryl parts covering the box in CAD. I don't want to paint the box but cover it with 1mm acryl plates to get sharp corners. Since the box is hand built no corners is really 90 degrees and so on. Do you have any ideas how to measure the box as precisely as possible? I think I need to get the dimensions right in 0,5mm resolution.

 

there is no reliable way to measure that to a tolerance of 0.5mm.

If I was you, over size the dimensions so when the acrylic is bonded to the shell, you can then use a router with a flush cut bit to trim the edges.

 

The best thing is probably to make some templates out of paper/cardboard and then as the above poster says, just file/sand/router it all into size.

Will the finished exterior have the same opaque black surface as the renders?