6\" horn build

:angel:

bee, I use two types of release agent. One is a french made polish especially made for the job. The other is a release agent bought in 5 litre containers. The release agent is a blue liquid mixed with PVA . When applied, the liquid evaporates and leaves a film on the mould. I polish the moulds first and then put the release agent on, just to make sure. This stuff is readily available in any fibreglass shop, usually a trade counter in a bout yard. I get mine from E.R Birch on Canvey Island.

thanks tony ill pop down to the boat yard and have a look.

ok i have loaded the horn today and built a rear chamber from wood, final horn will have a round shape pot as a rear chamber. not fired it up yet possible tomorrow.....

any more news on this bee. has been a very interesting thread and have learnt alot from this, so would love to know how your progress is going

still on the go sam.... just been very busy building other peoples systems all winter..... when i get a chance ill post some pics / plots etc, gotta take plotts first. when i fired it up for the first time it sounded ok.... still a bit of fine tuning to go, then build a phase plug...

smiley20 hey bro good job u are a gr8 man

A few tips:

Epoxy will not melt common hard-ware store foam, the downside to epoxy is you have to use cloth, and not mat - as epoxy is to thick for mat. also, it costs more - and so does cloth.

A normal car wax will do, I use part-all paste wax (johnsons is also popular) and then a release agent on bigger parts (part all's "green seal")


Goodluck with the build, they look great?

Bee... Whats the word on this one, have been trying to figure out a 6" horn to meet 1" or a piezo array (gasp) similar to Fitzmaurice cabs.

its ongoing..... lol..... im working on a 12" horn now, then ill relook at the 6" to meet the 12" with a 1", Ill dig out the current plans for the 6" and post up this week.