Forums > Stand Up Paddle Foiling

Takuma Kujira

Reply
Created by Filow > 9 months ago, 16 Sep 2020
toppleover
QLD, 1999 posts
11 Apr 2022 12:18AM
Thumbs Up

Hey there, does anyone know if the Takuma aluminium mast can be cut down like the Axis one can ?
I'd like to chop an 85 to an 80cm.

jondrums
121 posts
11 Apr 2022 2:44AM
Thumbs Up

yes you can, but you will have to re-tap the holes with an M6 tap.

I personally chose to redrill and retap the middle hole to M8 since there is plenty of metal there to do it. Even though there are 3 of them, M6 is just not enough to keep the fuselage attached well for me.

Velocicraptor
232 posts
11 Apr 2022 6:18AM
Thumbs Up

Select to expand quote
jondrums said..
yes you can, but you will have to re-tap the holes with an M6 tap.

I personally chose to redrill and retap the middle hole to M8 since there is plenty of metal there to do it. Even though there are 3 of them, M6 is just not enough to keep the fuselage attached well for me.



Good call. I ripped the m6 threads out of my mast and had to chop it down to remove the damaged section. M8 is the answer.

what did you use to fill the void in the mast (cut off the capped portion and need to seal it from water)?

jondrums
121 posts
12 Apr 2022 12:25PM
Thumbs Up

Select to expand quote

Velocicraptor said..


what did you use to fill the void in the mast (cut off the capped portion and need to seal it from water)?


hot glue works

martyman
WA, 221 posts
12 Apr 2022 2:28PM
Thumbs Up

Select to expand quote
jondrums said..



Velocicraptor said..



what did you use to fill the void in the mast (cut off the capped portion and need to seal it from water)?



hot glue works


brilliant

Velocicraptor
232 posts
12 Apr 2022 9:02PM
Thumbs Up

Select to expand quote
jondrums said..





Velocicraptor said..




what did you use to fill the void in the mast (cut off the capped portion and need to seal it from water)?




hot glue works



Just did mine last night with thickened JB Weld epoxy and seems to have done the trick too. Now just need to tap the threads and I will be good to go.

Did you bother spraying the cut edge to resist corrosion? I figure whatever I spray will rub off in the fuse pocket and anodizing seems like PIA overkill.

This is all a bit moot as I should have a Cedrus within the next two weeks. No m6's there. Figure I can use the chopped mast as a low tide short-length alternative.

martyman
WA, 221 posts
12 Apr 2022 10:58PM
Thumbs Up

Select to expand quote
Velocicraptor said..

jondrums said..







Velocicraptor said..





what did you use to fill the void in the mast (cut off the capped portion and need to seal it from water)?





hot glue works




Just did mine last night with thickened JB Weld epoxy and seems to have done the trick too. Now just need to tap the threads and I will be good to go.

Did you bother spraying the cut edge to resist corrosion? I figure whatever I spray will rub off in the fuse pocket and anodizing seems like PIA overkill.

This is all a bit moot as I should have a Cedrus within the next two weeks. No m6's there. Figure I can use the chopped mast as a low tide short-length alternative.


Just coat the area with tefgel.

Velocicraptor
232 posts
13 Apr 2022 10:36PM
Thumbs Up

Here's my newly chopped 220 tail. 12.75" span (took about 2.5" off of it). Spent a lot of time shaving and shaping the profile because its a fatty. Haven't ridden it yet, but didn't like the original shape so figured why not.

pardon the artistic touch. Turned it into an art project w my kids.




windeee
8 posts
18 Apr 2022 3:38PM
Thumbs Up

Select to expand quote
Velocicraptor said..


jondrums said..









Velocicraptor said..






what did you use to fill the void in the mast (cut off the capped portion and need to seal it from water)?






hot glue works





Just did mine last night with thickened JB Weld epoxy and seems to have done the trick too. Now just need to tap the threads and I will be good to go.

Did you bother spraying the cut edge to resist corrosion? I figure whatever I spray will rub off in the fuse pocket and anodizing seems like PIA overkill.

This is all a bit moot as I should have a Cedrus within the next two weeks. No m6's there. Figure I can use the chopped mast as a low tide short-length alternative.



For anyone over 85kg I JB Marine Welded my mast to the foot plate and fuselage last year and it got rid of nearly all the unhelpful flex in the foil so now I only feel small mast flex which is way more predictable - no longer an issue so have not felt the need to look at 19mm masts and adapters etc any more.

I put wooden dowels in the threads, JB marine welded the sockets, slid the connections together, removed dowels and bolted the connections together (threads pre greased but no intention of taking apart again). So it's bolted +welded for info.

JB marine weld impressed me not cracked or gapped yet I'm up toward 90kg with 5mm full winter neoprene on.

For info Alu mast with 1210 and 1440. Prone mostly with fair amount of winging. Have proned my old 980 and even the LOL 1600 and it was fine

foilthegreats
367 posts
4 May 2022 9:40PM
Thumbs Up

Late to the party but have a 1210 and 1750 full kit on the way.

Plan is to use with the alchemysurf.co ETA is May/June

I ride 3-7 sec period lake swell that is total garbage, these days mostly right in the shore break with a 4'2" 30L prone.

Plan is to use the 1750 on the 45cm mast when its micro micro small. Have had a lot of success with the HS1850 but wanted something that can handle tip ventilation better. Basically ride in 1-2' of water with the 45cm.

Will use the 1210 when just micro small. Using the alchemysurf.co fuse should be great as I prefer short fuse and it's so much better in small micro waves as the geometry of the foil fits in the wave better.

Should be interesting getting this setup all tuned up to use in these conditions.

foilthegreats
367 posts
10 May 2022 12:31AM
Thumbs Up

First impression.
Shapes look epic.
Build quality of the 1750 not great compared to 1210. Inside of connection looks like it should not have passed quality control but kind of expected from all the talk.
Mast and fuse look decent. Mast is sealed.
HS1850 pictured for comparison.
1210 tips aren't as sharp as I've imagined from all the talk but maybe they've rounded them a bit in latest production.























mcrt
478 posts
10 May 2022 2:10AM
Thumbs Up


With that size foil i would epoxy pot the connection as soon as possible,it will fill those nasty voids too.

If you do it try not go to deep with the epoxy, i got ambitious with my LOL 1900 and now it is a lovely one-piece wonder.Fun to get it in the car :)
The 1210 and 970 came out fine.

A bit further than the first screw is all you need.

toppleover
QLD, 1999 posts
14 May 2022 2:08PM
Thumbs Up

Another option to firm up the wing/fuse connection is to make a shim like in pic below out of some X-ray film.
I've made one for my 750 & it's pretty much a perfect fit.


kobo
NSW, 869 posts
14 May 2022 4:52PM
Thumbs Up

Could you get one of the Armstrong barrel bolts and just drill a top hole to fit on the Kujira? , like the conversion kit did.

King Crash
NSW, 210 posts
14 May 2022 7:25PM
Thumbs Up

I'm sure Jacko has suggested this here or another thread. Just use surf wax, it'll do a great job and 9/10 guys here will have it laying around.

mcrt
478 posts
14 May 2022 9:04PM
Thumbs Up

Select to expand quote
kobo said..
Could you get one of the Armstrong barrel bolts and just drill a top hole to fit on the Kujira? , like the conversion kit did.


I have done that.The Armstrong bolt needs to be shortened a bit because the Kujira is a bit thinner in section.I sleeved the drill bit with tape to avoid wearing down the threads.You can Dremel the Barrel part so it will not stick out the sides so much.

But epoxy potting is the best solution, takes all the load off the bolts.

Both of these operations are a bit nerve wracking and require time and prep, very easy to fudge up .

I will probably try the surf wax fix on future foils, with hard tropical wax it might be enough support.

SDcliffsFoil
4 posts
26 Jun 2022 7:27AM
Thumbs Up

Does anyone recommend what I should do to avoid the crews loosing up wile out at a session? I have the takuma 1210 front wing and aluminum fuse and mast. After about an hour the three screws that connect the fuse to the mast are loosing up.

Johndesu
NSW, 475 posts
26 Jun 2022 10:49AM
Thumbs Up

Select to expand quote
SDcliffsFoil said..
Does anyone recommend what I should do to avoid the crews loosing up wile out at a session? I have the takuma 1210 front wing and aluminum fuse and mast. After about an hour the three screws that connect the fuse to the mast are loosing up.


Try 'lock tight' from Bunnings or just keep tightening up etc., also how do you find the 1210? as I have just starting using it, and is you fuse exactly parallel to your hull or is there a slight angle in your fuse?:-)

exiled
354 posts
26 Jun 2022 1:02PM
Thumbs Up

Select to expand quote
SDcliffsFoil said..
Does anyone recommend what I should do to avoid the crews loosing up wile out at a session? I have the takuma 1210 front wing and aluminum fuse and mast. After about an hour the three screws that connect the fuse to the mast are loosing up.


Add aluminum tape to the fuse until it's snug enough that you have to tap the wing in.

toppleover
QLD, 1999 posts
26 Jun 2022 4:34PM
Thumbs Up

Select to expand quote
SDcliffsFoil said..
Does anyone recommend what I should do to avoid the crews loosing up wile out at a session? I have the takuma 1210 front wing and aluminum fuse and mast. After about an hour the three screws that connect the fuse to the mast are loosing up.


To avoid your screws coming loose at the front wing/fuse connection, you need to make that connection tighter so that there is no movement.

If you search this thread there is lots of information about this issue & how to fix it.

I used the Gofoil/Pedigo epoxy method & my 1210 is still tight after 6 months of use.

SDcliffsFoil
4 posts
28 Jun 2022 2:21AM
Thumbs Up

Select to expand quote
exiled said..

SDcliffsFoil said..
Does anyone recommend what I should do to avoid the crews loosing up wile out at a session? I have the takuma 1210 front wing and aluminum fuse and mast. After about an hour the three screws that connect the fuse to the mast are loosing up.



Add aluminum tape to the fuse until it's snug enough that you have to tap the wing in.


The aluminum tape worked really well for the front wing to the fuse connection. Maybe I will try wrapping more aluminum tape to the mast to fuse connection.

SDcliffsFoil
4 posts
28 Jun 2022 4:41AM
Thumbs Up

Select to expand quote
Johndesu said..

SDcliffsFoil said..
Does anyone recommend what I should do to avoid the crews loosing up wile out at a session? I have the takuma 1210 front wing and aluminum fuse and mast. After about an hour the three screws that connect the fuse to the mast are loosing up.



Try 'lock tight' from Bunnings or just keep tightening up etc., also how do you find the 1210? as I have just starting using it, and is you fuse exactly parallel to your hull or is there a slight angle in your fuse?:-)


I have a small car so I take apart most of the setup every session. The 1210 has been great for me. Most of the waves down in San Diego are gutless and this foil pumps forever. Its only my second foil setup but its very forgiving and has let me excel and get out of the beginner level real quick.

Johndesu
NSW, 475 posts
28 Jun 2022 11:12AM
Thumbs Up

Select to expand quote
SDcliffsFoil said..

Johndesu said..


SDcliffsFoil said..
Does anyone recommend what I should do to avoid the crews loosing up wile out at a session? I have the takuma 1210 front wing and aluminum fuse and mast. After about an hour the three screws that connect the fuse to the mast are loosing up.




Try 'lock tight' from Bunnings or just keep tightening up etc., also how do you find the 1210? as I have just starting using it, and is you fuse exactly parallel to your hull or is there a slight angle in your fuse?:-)



I have a small car so I take apart most of the setup every session. The 1210 has been great for me. Most of the waves down in San Diego are gutless and this foil pumps forever. Its only my second foil setup but its very forgiving and has let me excel and get out of the beginner level real quick.


Yes Cliff I am in a similar situation - & small car & beginner & now 1year, can I ask what was your 1st previous foil set up?:-)

Johndesu
NSW, 475 posts
29 Jun 2022 2:21PM
Thumbs Up

Select to expand quote
SDcliffsFoil said..

Johndesu said..


SDcliffsFoil said..
Does anyone recommend what I should do to avoid the crews loosing up wile out at a session? I have the takuma 1210 front wing and aluminum fuse and mast. After about an hour the three screws that connect the fuse to the mast are loosing up.




Try 'lock tight' from Bunnings or just keep tightening up etc., also how do you find the 1210? as I have just starting using it, and is you fuse exactly parallel to your hull or is there a slight angle in your fuse?:-)



I have a small car so I take apart most of the setup every session. The 1210 has been great for me. Most of the waves down in San Diego are gutless and this foil pumps forever. Its only my second foil setup but its very forgiving and has let me excel and get out of the beginner level real quick.

Hey Cliff can you please tell me what shim you use on the rear tail as I am have tried the zero & +0.5 shims ?:-)

SDcliffsFoil
4 posts
30 Jun 2022 4:01AM
Thumbs Up

Select to expand quote
Johndesu said..

SDcliffsFoil said..


Johndesu said..



SDcliffsFoil said..
Does anyone recommend what I should do to avoid the crews loosing up wile out at a session? I have the takuma 1210 front wing and aluminum fuse and mast. After about an hour the three screws that connect the fuse to the mast are loosing up.





Try 'lock tight' from Bunnings or just keep tightening up etc., also how do you find the 1210? as I have just starting using it, and is you fuse exactly parallel to your hull or is there a slight angle in your fuse?:-)




I have a small car so I take apart most of the setup every session. The 1210 has been great for me. Most of the waves down in San Diego are gutless and this foil pumps forever. Its only my second foil setup but its very forgiving and has let me excel and get out of the beginner level real quick.


Hey Cliff can you please tell me what shim you use on the rear tail as I am have tried the zero & +0.5 shims ?:-)


Ive been using a positive tail shim on my setup. Cut a credit card to shape the back tail/fuse area under the screws. Seems like it has helped reduce the excessive lift when getting on foil.

Johndesu
NSW, 475 posts
30 Jun 2022 11:53AM
Thumbs Up

Select to expand quote
SDcliffsFoil said..

Johndesu said..


SDcliffsFoil said..



Johndesu said..




SDcliffsFoil said..
Does anyone recommend what I should do to avoid the crews loosing up wile out at a session? I have the takuma 1210 front wing and aluminum fuse and mast. After about an hour the three screws that connect the fuse to the mast are loosing up.






Try 'lock tight' from Bunnings or just keep tightening up etc., also how do you find the 1210? as I have just starting using it, and is you fuse exactly parallel to your hull or is there a slight angle in your fuse?:-)





I have a small car so I take apart most of the setup every session. The 1210 has been great for me. Most of the waves down in San Diego are gutless and this foil pumps forever. Its only my second foil setup but its very forgiving and has let me excel and get out of the beginner level real quick.



Hey Cliff can you please tell me what shim you use on the rear tail as I am have tried the zero & +0.5 shims ?:-)



Ive been using a positive tail shim on my setup. Cut a credit card to shape the back tail/fuse area under the screws. Seems like it has helped reduce the excessive lift when getting on foil.


Ok so are you saying that you use around a +1 shim/angle then? & what about your fuselage angle - is it dead straight or a bit of an angle up or down?:-)

gorgesailor
498 posts
1 Jul 2022 2:20AM
Thumbs Up

Select to expand quote
Johndesu said..

SDcliffsFoil said..


Johndesu said..



SDcliffsFoil said..




Johndesu said..





SDcliffsFoil said..
Does anyone recommend what I should do to avoid the crews loosing up wile out at a session? I have the takuma 1210 front wing and aluminum fuse and mast. After about an hour the three screws that connect the fuse to the mast are loosing up.







Try 'lock tight' from Bunnings or just keep tightening up etc., also how do you find the 1210? as I have just starting using it, and is you fuse exactly parallel to your hull or is there a slight angle in your fuse?:-)






I have a small car so I take apart most of the setup every session. The 1210 has been great for me. Most of the waves down in San Diego are gutless and this foil pumps forever. Its only my second foil setup but its very forgiving and has let me excel and get out of the beginner level real quick.




Hey Cliff can you please tell me what shim you use on the rear tail as I am have tried the zero & +0.5 shims ?:-)




Ive been using a positive tail shim on my setup. Cut a credit card to shape the back tail/fuse area under the screws. Seems like it has helped reduce the excessive lift when getting on foil.



Ok so are you saying that you use around a +1 shim/angle then? & what about your fuselage angle - is it dead straight or a bit of an angle up or down?:-)


All the 2021/22 75/85cm Alloy setups have built in angle on the fuse. If you have the early 2020 T-mast or the 2020 70/80cm Alloy it will not have any added angle.

Johndesu
NSW, 475 posts
1 Jul 2022 9:53AM
Thumbs Up

Select to expand quote
gorgesailor said..

Johndesu said..


SDcliffsFoil said..



Johndesu said..




SDcliffsFoil said..





Johndesu said..






SDcliffsFoil said..
Does anyone recommend what I should do to avoid the crews loosing up wile out at a session? I have the takuma 1210 front wing and aluminum fuse and mast. After about an hour the three screws that connect the fuse to the mast are loosing up.








Try 'lock tight' from Bunnings or just keep tightening up etc., also how do you find the 1210? as I have just starting using it, and is you fuse exactly parallel to your hull or is there a slight angle in your fuse?:-)







I have a small car so I take apart most of the setup every session. The 1210 has been great for me. Most of the waves down in San Diego are gutless and this foil pumps forever. Its only my second foil setup but its very forgiving and has let me excel and get out of the beginner level real quick.





Hey Cliff can you please tell me what shim you use on the rear tail as I am have tried the zero & +0.5 shims ?:-)





Ive been using a positive tail shim on my setup. Cut a credit card to shape the back tail/fuse area under the screws. Seems like it has helped reduce the excessive lift when getting on foil.




Ok so are you saying that you use around a +1 shim/angle then? & what about your fuselage angle - is it dead straight or a bit of an angle up or down?:-)



All the 2021/22 75/85cm Alloy setups have built in angle on the fuse. If you have the early 2020 T-mast or the 2020 70/80cm Alloy it will not have any added angle.


Ok so do you know what is the angle & is it up or down? I have attached a 1210 to a 60cm Armstrong fuselage & before I permanently fit it in I want to get it right because I will not be able to detach or adjust it afterwards - thanks:-)

kobo
NSW, 869 posts
1 Aug 2022 7:30PM
Thumbs Up

Interesting split fuse design, the front screw forcing it apart and creating a tight fit.






Subscribe
Reply

Forums > Stand Up Paddle Foiling


"Takuma Kujira" started by Filow