tag:blogger.com,1999:blog-7170394666904273261.post7131514041916587231..comments2012-09-04T02:57:35.785-07:00Comments on Kite board projekt: Gipsani otisak - Plaster moldDownunderhttp://www.blogger.com/profile/11902104660378173454noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7170394666904273261.post-49358678139425147892011-10-18T19:22:39.562-07:002011-10-18T19:22:39.562-07:00A little update on this: a blue tape in the middle...A little update on this: a blue tape in the middle white area is holding two perspex sheets in place. Under both end of perspex I've placed some 5cm thick wood offcuts to get a curved shape when a plaster went on top. The above photo is just before placing my factory made board (wrapped in some foil) on top of the plaster. With a bit of compression this board made a fine imprint after 24hrs. The board was completely in the plaster and this was important!<br />It means the imprint was almost carved in the plaster, rails too.<br />After lifting the board up, there were some dry spots under.<br />I didn't care about this since the next layer of plaster (and fiberglass) was poured on top to cover the complete imprint which was 6 to 3 millimeters deep (as per factory board rail thickness). <br />Surface finished by hand and nice curved shape in place. Almost perfect. A bit of sand paper after a few days and template ready for vacuuming.Downunderhttps://www.blogger.com/profile/11902104660378173454noreply@blogger.comtag:blogger.com,1999:blog-7170394666904273261.post-67746072262488392572011-09-28T17:09:41.619-07:002011-09-28T17:09:41.619-07:00Hey Dean. Nice work! I like the idea of the plaste...Hey Dean. Nice work! I like the idea of the plaster. I have been thinking about something similar as I want to be able to put the entire rocker table in the vacuum bag rather than use tacky tape on the mold surface (which each time has meant I have spent a long time trying to find air leaks). Having a solid rocker table (without bolts sticking out) seems like the best way. It might also make it easier to apply positive pressure on top of the board without distorting the mold surface. <br /><br />Great work! BTW I just got the wood from Paulonia Paradise in Melbourne to try some wood cores this summer!!<br /><br />Cheers<br />MattMattMahttps://www.blogger.com/profile/04256614801832932462noreply@blogger.com