Building 1 time use mold. input?

[Dave Hirshberg]

Strick,
Where do you get the hardboard you are talking about. I bought Melamine board 5/8 in which is particle board with a plastic white coating on each side. Its very hard and smooth and I plan on using it for the inside top of the mold and bottom. I've been reffering to it in the posts as plywood but it is called Melamine at Home Depot. The type of stuff you would make cabinet shelves out of. I didn't see anything that would make a rounded 90 degree bend. If there is a board that will make the bend without breaking I'll use it. Let Me know.
Thanks Dave.

[strick]

Dave-

I get the Hard board from HD as well. They dont carry it all the time and that can be a problem... you remember the stuff called pegboard that has a million little holes in it? well this stuff is like it minus the holes. Comes in two sizes(i think 1/8 and 1/4) has one very very smooth side and one rough side and is very flexible. You may have to call several lumbaryards to find it I think it is used for indoor paneling.

Strick

[abl1111]

I was just at a HD today buying 'stuff' and went to check out the hardboard material. I have never made a mold and will attempt within the next 2-3 months.

Strick, how much can that stuff bend ?

I am starting to think-out a tackle center box that mounts to the floor and mounts my ped seats ( that I don't own yet ).

Anybody ever see this done ? If so, have you got dimensions ? What core would you use here ?

Also, how would you make the mounting lip/flange on the bottom - inward or outward ?

Thx,

alan

[John R]

I have a "tackle center" that came on the boat and the short pedastals mount on top. I'm not big on it so I'm removing it in favor of a leaning post and slipping a livewell underneath... It's old but I can probably take a pic if you are interested....

[abl1111]

John,

I thought you had a center console ? Is your tackle center for a center console ?

I have a 23' Tsunami - you think what you have will work for my application ? If so, send me a pix, pls. Either way, I'll need (2) boxes; helm and passenger.

I have a feeling I will end up building a mold one way or another - but hey you never know-

Thx,

alan

Alan

[John R]

Probably won't work for you - here it is

[strick]

abl1111- My brother bending 1/8 inch hardboard.



3/8-1/5 inch core cell. Make lip/flange inward.

Strick

[abl1111]

John - That is the exact idea of what I want to do. I think that I will be able to get away w/ a wider version of that one, giving me more storage area. What is the dimension of yours ? And what make seats are those? I am looking for seats like those. [img]images/icons/smile.gif[/img]

Strick - WOW ! That stuff does bend ! When you do make a mold, I assume you build the outside frame first - then you attach the hardboard - but how do you attach the hardboard, w/ small nails and then smooth over ? And, in an application like mine ( a rectangular-box ), I would have 90 degree corners on the inside - I know you use epoxy, fileted and smoothed out to achieve the smooth radius corners. Can you use clay there instead ?

Thx,

Alan

[strick]

abl111- you can glue the hardboard with "Liquid Nails" or use small finish nails (ones without a flat head) to attach to frame. Or use both. I've tried clay but not had as good a luck with it as with microbubbles in epoxy. Microbubbles sand very easily once hard. A good fiberglass shop should be able to set you up. Is there a "Fiberglass Hawaii" in your area? There is one two hours from my home and the head guy there used to build boats for a living and is very helpful when I have questions about all the products... of course I've spent more then a few bucks there [img]images/icons/wink.gif[/img]

Good Luck

[John R]

ABL - the seats are from Todd. Once piece seats plus the cushions... Not sure on the dimensions but I can look that up over the next couple days. The seats Might get reused but also might go up on Ebay...