Contact   Imprint   Advertising   Guidelines

stainless inserts

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


JaZone
Medium Poster
Posts: 112
Joined: Sat May 18, 2013 2:14 am
Kiting since: 2012
Brand Affiliation: None

stainless inserts

Postby JaZone » Fri May 26, 2017 1:14 pm

I know this has been asked before.

I am looking for the stainless t-inserts for the footstraps and handle.
where do you guys recommend getting them?
Ideally , if anyone knows a source in Canada that would be great. I checked home depot but they didn't have anything in stainless

User avatar
kostantin
Medium Poster
Posts: 79
Joined: Wed Sep 10, 2008 3:44 am
Kiting since: 2000
Local Beach: Sahlenburg
Favorite Beaches: Beauduc
Gear: Switch, PANSH, Fisch Kiteboards
Location: Germany
Contact:

Re: stainless inserts

Postby kostantin » Fri May 26, 2017 1:39 pm

Hi,

you mean something like this ?

Image

tks

Kosta

JaZone
Medium Poster
Posts: 112
Joined: Sat May 18, 2013 2:14 am
Kiting since: 2012
Brand Affiliation: None

Re: stainless inserts

Postby JaZone » Fri May 26, 2017 1:51 pm

something like this, Image
but , I guess those would work as well

wood1
Rare Poster
Posts: 36
Joined: Fri May 09, 2003 6:44 pm
Kiting since: 0
Brand Affiliation: None
Location: haifa

Re: stainless inserts

Postby wood1 » Fri May 26, 2017 1:55 pm


User avatar
kostantin
Medium Poster
Posts: 79
Joined: Wed Sep 10, 2008 3:44 am
Kiting since: 2000
Local Beach: Sahlenburg
Favorite Beaches: Beauduc
Gear: Switch, PANSH, Fisch Kiteboards
Location: Germany
Contact:

Re: stainless inserts

Postby kostantin » Fri May 26, 2017 2:11 pm

I would not use them even if I would get paid for it.

You need a tool like this :

Image

Make holes like you can see here :

Close the holes at bottom of the board with tape. Center the nuts in the hole and prevent moving them as you press them on the tape.

Image

Glue them in with filled epoxy. I use cotton flakes. For better understanding I have been using epoxy color in this picture :

Image

The result will look like this :

Image

Once the resin is cured, mill the epoxy with a router plain to the blank. Now the things will start to get slightly difficult to explain, english is not my native language.

Drill a small sink from the top to the bottom. You will need the sink to locate the nut once the board is laminated. When the board is finished, open the hole with a thread cuter. And yes, the hole and the thread is going thru the board. I am working like this for a decade or more. You will never rip the nut out of a board, this does not fail.

What you should look for is this :

Image

The wide part of the nut is facing down to the board.

Have fun

Kosta

User avatar
rynhardt
Very Frequent Poster
Posts: 622
Joined: Wed Sep 11, 2013 3:51 pm
Kiting since: 2010
Local Beach: Leeupan
Favorite Beaches: Langebaan
Style: Freeride
Gear: GK vSonic 6 & 11
Cloud C2 17
Progeni Mutare
Xelerator door
Hoff DD140
Brand Affiliation: None
Location: Johannesburg, South Africa

Re: stainless inserts

Postby rynhardt » Fri May 26, 2017 6:19 pm

Fascinating! Would love to see more pictures of your boards!

JakeFarley
Medium Poster
Posts: 88
Joined: Sun Nov 27, 2016 11:54 pm
Kiting since: 2001
Local Beach: Florida West Coast, USA
Favorite Beaches: Any that are not crowded.
Style: Old fart style
Gear: Kites: Flysurfer Speed5 21m, Cabrinha 16m Xbow, 11m Xbow, Best 14m HP Nemesis, 9m Yarga Hybrid
Boards: Crazyfly 135 x 46 Pro, Cabrinha Spoiler 140, 6' custom surfboard, 122 x 46 custom twintip, custom 140 x 50 strapless twintip/skim
Brand Affiliation: None

Re: stainless inserts

Postby JakeFarley » Fri May 26, 2017 6:38 pm

You can get the SS t-nuts on EBay (50 for around $35). I drill out on the board bottom the diameter of the flanged part so it sits flush with the bottom of the board. The t-nut should be long enough to account for the layers of fiberglass on the top of the board. I tape the bottom hole of the t-nut before laminating the bottom and fill the t-nut with flour packed in before laminating the top. Then after the resin cures drill it out and blow out the flour. No need to retap or clean out the threads.
IMG_20170401_114113.jpg

User avatar
kostantin
Medium Poster
Posts: 79
Joined: Wed Sep 10, 2008 3:44 am
Kiting since: 2000
Local Beach: Sahlenburg
Favorite Beaches: Beauduc
Gear: Switch, PANSH, Fisch Kiteboards
Location: Germany
Contact:

Re: stainless inserts

Postby kostantin » Fri May 26, 2017 8:42 pm

rynhardt wrote:
Fri May 26, 2017 6:19 pm
Fascinating! Would love to see more pictures of your boards!
I don't have to many pictures of my boards.

This is one of the bottom, this might be 6 years old. All my boards are mold injected. Both board and mold are made out of carbon.

Image

This is one shows the hot box after injection

Image

Sanding the mold, no frame yet.

Image

The mold with frame, not waxed.

Image

This one shows a mold I made for my ex wife. Not finished yet.

Image

That is the result. There was only pulled one out of the mold.

Image

After all, building TT's since 2005 I can tell you, this is boring as hell.

Real men make mold's for foils. That is a serious task.

tks

Kosta

User avatar
downunder
Very Frequent Poster
Posts: 1093
Joined: Mon Jul 01, 2013 7:16 am
Kiting since: 1970
Gear: building my own
Brand Affiliation: None
Location: Perth, Australia

Re: stainless inserts

Postby downunder » Sat May 27, 2017 3:05 am

On the second pic we can already see the rust coming. The open bottom inserts might be prone to letting a moisture in. Brass inserts are not great as well, we need a proper 316 SS alloy. You can see how salt corroded on above pic since not 316. That's bad. There is SS and marine type SS :)

I'm selling small amounts to customers since no one will sell other than in bulk, unfortunately. Postage to Canada is AU$8 for up to 22 inserts (about 100 grams envelope). Just sent to Turkey again, sent before to South Africa all happy customers, great DIY boards :)

http://boardbuilders-forum.1077691.n5.n ... -td30.html

Image

Cheers

D.

BWD
Very Frequent Poster
Posts: 3164
Joined: Thu Jun 05, 2003 3:37 am

Re: stainless inserts

Postby BWD » Sat May 27, 2017 3:56 am

All these ways can work.
Some may be shocked and disappointed to learn it can also work to simply pot a lubricated screw directly into epoxy with high density filler. The screw comes out easily if you coat it with petroleum jelly. In fact this has been done with some yacht keels (no lubrication for these though) carrying tonnes of load since the 1970's. I did foot straps like this a couple of times when I could not find any inserts. It is strong enough for kiting and jumping but not ideal for repeated assembly of dirty parts. Metal is more practical for that.


Return to “Board Builders”

Who is online

Users browsing this forum: No registered users and 2 guests

cron