Sexual intercorsa...

Carbon fibre filament is tiny carbon fibres that add strength in the same way glass fibres add strength to polyester

the massive downside to carbon fibre filaments is the nozzle wear they cause, definitely use a hardened steel nozzle, The diameter of the nozzle will increase after a while
 
More work on the pillars, rather than try to hide fixings I have now taken a different approach and am going to use a pair of M5 done head Allen bolts into M5 threaded inserts set in birch! It will create a very solid fixing once I’ve assembled the pillar

I’ve made a fixing at the base on the mid enclosure. And another at a higher point where the factory pillar located also

i then began with basic pieces and built from there, adding pieces a part at a time with ca glue and activator, I am making the top half and the bottom half (due to the bolt points) independently and once happy I will join the two pieces together)

I will ca glue a couple of braces like an exo skeleton for when I fix it all together, then remove it and fibreglass filler the pillar to get some strength in it :)
 
As you can see I have used the top section of the factory pillars where it meets the roof lining, and will continue building the outside parts of the pillar to the window frame and the door rubbers, I will use some sections of dowel to provide swage lines and make something I can hopefully trim in the grill cloth also
 
That's a good looking stack of drivers. With that A pillar smoothed and finished off - grille cloth or matching the plastics - that's going to look killer. [emoji41]

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geolemon said:
That's a good looking stack of drivers. With that A pillar smoothed and finished off - grille cloth or matching the plastics - that's going to look killer. [emoji41]

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Click to expand...

i will trim it if possible in the black grill cloth, but I also have various trim paints to use also
 
Yeah, I could see it either way - not sure honestly which would look better.
A matching grille cloth - could be cool. But with those drivers overlapping... I could see the upper in an OEM-like plastic, with some contrast to the grille cloth pod below - could be cool.
Either way will be cool.
 
Currently I’m mulling it over with covid, got it lightly and am now coming out of the other end, still got 2-6 days off work, so probably have a bash at finishing the pillars on Saturday if I get negative tests as I use my mates workshop
 
So I managed one day on the build :) it ended up with pillars at the fibreglass stage and a waft of black paint to see how it looked… thumbs up from me so far, needs longer bolts for the lower fixing and a 12mm lump of birch to bring it out further, then I can fill from the tweeter ring to the rear section and give it its final shape :)

back to work tomorrow! Been off 18 days now Inc my initial holiday where I picked the virus up :(
 
Oh yeah. I like the rough shape, with the flat.
And that's making me vote "team contrast".
Looking good, I'm sure sounding awesome.

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geolemon said:
Oh yeah. I like the rough shape, with the flat.
And that's making me vote "team contrast".
Looking good, I'm sure sounding awesome.

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Click to expand...

currently it has no eq on mids or tweeters and has an excellent stage with good instrument placement and tonality… the finer details will be interesting to thrash out when it gets better than it is now :)
 
So a very interesting topic came up the other day

pink noise we use for measuring with mics

this is quite hard to do so I’ll use four posts… but it was quite eye opening… the Emma cds like many competition formats contain pink noise for tuning with

attached is the rew analysis of the wav file, so I saw this and wondered if my cd rip had gone wrong when converting to a wav file
 
How bad is that while we are trying to tune (I should add that lots of other pink noise files from focal, kicker and a load more are as bad as this! God knows why… see my last post on this for why

So next up, I have the pink noise cd quality taken from the Emma 2022 anniversary usb stick, rolls off a little from 19.5khz but does extend upto 22khz, but look at the bass end, can you imagine tuning to the half whitledge curve with that
 
So next up the hi res version of the Emma 2022 usb (these are both in wav format so no room for me altering stuff or changing things) it’s flat to 48khz, so accurate… but the same bass roll off…
 
And let but not least my effort made in audacitys generator, I make an hr long version so I can do a car with no skips or gaps which wrecks spatial averages

It’s 48khz 16bit and an hr long, I’ll leave a link to my Google drive so anyone with the link can download it as well… why they can’t manage to generate flat pink noise I have no idea, but there’s loads that are not flat as we require for correct tuning… mine is flat from 7hz to 24khz so very good for what we require

i should add to test your pink noise I used rew to play the wav file in rta and it measures the output of the wav file while it plays, I just set unlimited averages and it samples while the noise plays

if you have pink noise in another format I used fre:ac audio converter to swap the file format if it’s not a wav file in the first place

rew will generate it, but only for shorter periods and Sod’s law the end/beginning on repeat always comes in the middle of a 100 measurement period :(
 
Wow that's WAY worse than I ever imagined. I would have trusted the EMMA one especially.

I'm definitely grabbing your track and putting it on my Google Drive. Huge thanks, that's great of you to do. So good.

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