Ferrari 288GTO build (Page 33/64)
dobie1 APR 20, 12:39 AM
Thanks for stopping by Bob , somedays it seams like Im spinning my wheels but the build is moving forward.

Don it's always good to talking about our builds. I really appreciate your suggestions and help.

For those following the build Here are the final shots of the front fenders and the front hood top painted.
I'm very happy with the overall paint on the parts, only a couple mistakes. I'm hoping they wet sand and polish to a perfect finish to mold.




Thanks for looking
Wayne

[This message has been edited by dobie1 (edited 04-20-2020).]

Sage APR 20, 12:29 PM
Beautiful!

Sand, sand, sand, buff, buff, buff, wax, wax, wax! LOL

I'd still use some PVA or the like AFTER wax on - wax off (X10) before first coat of gel for molding.

But hey, I'm old....probably something much better available now.

Either way, keep the updates coming, and everything looks absolutely gorgeous!

HAGO!
dobie1 APR 21, 02:29 PM
Thanks Sage
I will for sure use PVA , if I do the carbon fibre body panels down the road I'll be using a chemical release with the epoxy resins.
for those interested in a money shot

dobie1 APR 29, 12:25 PM
A bit of a update on the mold building progress.

Due to the fragile nature of using foam in constrution ( very strong overall but breaks like a egg if dropped) and as Murphy's Law will happen both running boards were dropped.
There is lots of fibreglass and bondo in the construction but a couple cracks did emerge in the flattop surface which was made and shaped using polyurethan foam.
I repaired best I could wet sanding and filling , so hopefully I will not need to do too much sanding on the mold.
I'm doing the two running boards first just because I do not want to have anything else happen before the molds are done.
Each running board is made up of 3 separate removable flanged sections. The following photos show the upper and lower mold build. I'll do the third today.


this shows the planning of where the parting lines are.


this is with the flanges being attached


This is with the gelcoat applied , I use a silica additive to the gelcoat around the edges to ensure of hard and detailed edges.
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top mold 3 layers of 1 1/2" mat I added reenforcement after this shot and 2 more layers of mat.


this shot is the bottom mold fab with the flange removed from the upper mold preping I used clay and molding wax to ensure sharp parting lines.


this shot is with gelcoat added as before.


this is with 3 layers


this is the finished bottom mold with reenforcement added and 2 more layers of mat.


I hope to finish this mold today
enjoy and stay safe.
Wayne
RCR APR 30, 08:13 PM
Nice Wayne...

Bob
dobie1 MAY 01, 11:22 PM
Thanks for looking Bob!


I've been busy finishing off the first running board mold.

I had to do a bit of a repair to a flange as there was a couple flaws that were easy enough to repair and would give me a better seal if I decide to do a vacuum bag.


then I applied the thickened gelcoat in the 90 deg corners to help the matt lay tight, after it kicked I applied a full coat of gelcoat.

I completed all the fibreglassing on the area so that mold is now completed, one down 7 to go.

I started the second running board finishing the top first. I changed up the flanges this time I covering them in aluminum tape. I found on the first mold even though the wood flanges were sealed that the wood grain came through more prevalent than I wanted.




Thanks for looking
Wayne
stay safe

[This message has been edited by dobie1 (edited 05-02-2020).]

shemdogg MAY 03, 10:45 PM
Molds look great, good stuff! Cant wait to see the panels on the car

shem
dobie1 MAY 11, 10:59 PM
First off thanks Shem ,lots of work but rewarding.

I got the second running board mold finished , I spent some time finishing all the parting lines then sealing and polishing the surfaces. They are now all buttoned up and put away to finish curing for a couple weeks.

I moved onto the next set of molds , there was foam used in the construction of the door and to avoid any damage I'm onto door molds.

I'm using a new material in the flange construction , 8" aluminum flashing. It gives me enough material to attach to the part and still leave a wide flange surface for vacuum bagging.







I got to use my gel coat cup gun for the first time


works pretty good and is way faster, it possibly uses a bit more gel coat but hopefully has a better finish.



this is with 2 layers of 1 1/2oz mat . reenforcement tomorrow and 3 more layers.



Thanks for stopping by
stay safe
Wayne
dobie1 MAY 13, 11:27 PM
A bit of a update for those interested in the molding process.
I got the first of the door molds finished today the build came together pretty quickly 3 days from start to finish. I'll leave the plug in for a couple days for the fibreglass to cure a bit more. I liked using the aluminum flashing for the flanges, it made forming some of the complicated transitions easier to build. It requires a bit more caution until you get to shooting the gelcoat, the release is very easy.
I also really enjoyed how fast and easy it was using the cup gun to lay the gelcoat down in a uniform layer.

This is with the reenforcement glassed in , I'm using water pipe foam insulation attached with hot melt glue to make the reenforcement works best working with the
different contours and angles.





This shows the nice wide flange area for vacuum bagging.



Gel coat shot and ready to lay the glass



This is the completed mold , i'll trim it up tomorrow.




On to the next one!!

stay safe everyone
Wayne

[This message has been edited by dobie1 (edited 05-13-2020).]

RCR MAY 14, 06:42 PM
Great stuff, Wayne. Thanx for the updates and teachings.




Bob