Contact   Imprint   Advertising   Guidelines

Broken mast repair

here you can exchange your experience and datas about your home build boards


Dizzyag
Rare Poster
Posts: 4
Joined: Wed Sep 23, 2015 2:35 am
Kiting since: 5
Local Beach: Waddell
Gear: North Rebels
Brand Affiliation: None

Broken mast repair

Postby Dizzyag » Thu May 25, 2017 8:34 pm

Hey everyone
Just wanted to share my repair of a lift mast that broke. The original base plate delaminated and lift said there was nothing they could do because they no longer had the molds. So I 3d modeled and printed my own molds
IMG_0630.JPG
IMG_0637.JPG
I cut off the old base plate and planned on putting this all the way through to the base.
IMG_0638.JPG
After that I laid up unidirectional carbon for the outerskin and sides and then built up the thickness of the baseplate with fiberglass. I attached a piece of Melamine to make the bottom of the plate and then leveled and plumbed the whole assembly to cure.
IMG_0798.JPG
IMG_0797.JPG
After curing I found my mold release did not work so I had to sand off the bondo, sandable primer and paint I had smoothed the form with.
IMG_0800.JPG
IMG_0801.JPG
I didn't vacuum the layup so i had a couple minor imperfections that needed filled and faired.
IMG_0805.JPG
Then Painted
IMG_0806.JPG
I haven't tried it yet and it was a bit of a learning process but I think it should work!

NorCalNomad
Very Frequent Poster
Posts: 727
Joined: Thu Feb 13, 2014 4:40 am
Kiting since: 1900
Local Beach: San Francisco
Gear: Why should it matter?

Re: Broken mast repair

Postby NorCalNomad » Fri May 26, 2017 1:10 am

Great use of a 3D printer.

Did you leave the melamine in there or was it just part of your mold?

Dizzyag
Rare Poster
Posts: 4
Joined: Wed Sep 23, 2015 2:35 am
Kiting since: 5
Local Beach: Waddell
Gear: North Rebels
Brand Affiliation: None

Re: Broken mast repair

Postby Dizzyag » Fri May 26, 2017 1:54 am

NorCalNomad wrote:
Fri May 26, 2017 1:10 am
Great use of a 3D printer.

Did you leave the melamine in there or was it just part of your mold?
The melamine was a flat object that epoxy would release from to close up the bottom of mold so there would be a perfectly flat surface to attach to the board.

NorCalNomad
Very Frequent Poster
Posts: 727
Joined: Thu Feb 13, 2014 4:40 am
Kiting since: 1900
Local Beach: San Francisco
Gear: Why should it matter?

Re: Broken mast repair

Postby NorCalNomad » Fri May 26, 2017 3:50 am

That's what I figured you meant. Melamine + any sort of moisture = bad


Return to “Board Builders”

Who is online

Users browsing this forum: No registered users and 3 guests

cron