anchor "STORM" DIY

Discussion in 'Projects & Proposals' started by Bonaparte, Jan 4, 2018.

  1. Bonaparte
    Joined: Sep 2017
    Posts: 62
    Likes: 20, Points: 8
    Location: Koper, Slovenia EU

    Bonaparte Junior Member

    There is my new project. Anchor with name STORM.
    Project is still in progress. I will upload photos by steps.
    The .dxf file for autocad laser cut is in attachment.

    FREE DOWNLOAD ULTIMATE VERSION OF CUTTING FILE AND MORE:

    p.s. I am sorry for my bad english. English is not my mother tounge.
     
    Last edited: Jan 7, 2018
  2. Bonaparte
    Joined: Sep 2017
    Posts: 62
    Likes: 20, Points: 8
    Location: Koper, Slovenia EU

    Bonaparte Junior Member

    The good thing in this is that everyone can make it anchor how big they want.
    I am planing to make one 25kg anchor for my boat and one 150kg heavy anchor and use it instead of 2.000kg heavy concrete block on fixed location in bay in front of my apartament.
    The cost for 25kg galvanized anchor will be around 100$
    The cost for 150kg galvanized anchor will be around 450$.
     
  3. gonzo
    Joined: Aug 2002
    Posts: 13,376
    Likes: 329, Points: 93, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    Anchors and moorings operate differently. When the wind or current shifts, anchors will unhook from the ground, drag and then re-set. Mooring are permanent and should never move location.
     
    Angélique likes this.
  4. Bonaparte
    Joined: Sep 2017
    Posts: 62
    Likes: 20, Points: 8
    Location: Koper, Slovenia EU

    Bonaparte Junior Member

    This anchor is special designed and will not unhook from the ground.
     
    Last edited: Jan 5, 2018
  5. goodwilltoall
    Joined: Jul 2010
    Posts: 812
    Likes: 20, Points: 18, Legacy Rep: 31
    Location: nation of Ohio

    goodwilltoall Senior Member

    That would b a one of a kind anchor to not"unhook" however i like the look of the storm although the stock seems small. How do you bend the plate or is it welded?
     
    Last edited: Jan 4, 2018
  6. Angélique
    Joined: Feb 2009
    Posts: 3,005
    Likes: 315, Points: 83, Legacy Rep: 1632
    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

    Hi Bonaparte, thanks for sharing, including the cutting file . . . :)

    storm anchor cardboard model 1.jpg

    Congrats on the cardboard model, it's really looking realistic already . . . :cool:

    How is it not going to unhook, and then dragged, and then reset, when pulled in the opposite direction as the initially set position, e.g. due to a 180° wind direction change, and/or or a change of the tide, when the extra heavy version is used as a mooring . . ?

    BTW, it looks like an all welded version of a Mantus anchor, but with the aft end going up, like on the Original Rocna, and also like on the Rocna Vulcan . . .

    Mantus Anchors

    Original Rocna

    Rocna Vulcan

    Rocna
     
    Last edited: Jan 7, 2018
  7. Angélique
    Joined: Feb 2009
    Posts: 3,005
    Likes: 315, Points: 83, Legacy Rep: 1632
    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

    Ah, just saw the post #2 picture is clickable, and linked to its source, where it's pic #131 of this great series of yours . . :)

    Bonaparte, thanks for uploading and sharing . . :cool:

    P.S. - Just saw, the original post #2 is gone now.

    But the meant clickable and linked to its source picture from there, is now in the same way posted as the first pic in post #28 by Bonaparte . . .
    storm anchor drawing 1.jpg
     
    Last edited: Jan 7, 2018
  8. BlueBell
    Joined: May 2017
    Posts: 712
    Likes: 71, Points: 28
    Location: Victoria BC Canada

    BlueBell Ahhhhh...

    I paid $20 for a 22 pound, used Danforth, and it works great
     
  9. Angélique
    Joined: Feb 2009
    Posts: 3,005
    Likes: 315, Points: 83, Legacy Rep: 1632
    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

    Sharp eye . . !

    Bonaparte, please take note that Mantus Anchor, where you took a lot of measurements from, uses stronger material for the shank then for the fluke . . .

    ‘‘ Shank Yield Strength 690 Mpa ’’ - - (Mpa = Megapascal = N/mm²)

    ‘‘ Stainless Steel anchors feature a 2205 Duplex shank and 316L stainless steel fluke. The surface is hardened by shot-peening and then electro-polished to provide maximum corrosion resistance. ’’

    ‘‘ In the carbon steel version every part of the anchor system is hot-dipped galvanized for corrosion protection. (All shanks are HT ASTM 514 Steel and flukes are mild steel A36 equivalent) ’’

    ( shank = the stock - - fluke = the blade )
     
    Last edited: Jan 8, 2018
  10. Angélique
    Joined: Feb 2009
    Posts: 3,005
    Likes: 315, Points: 83, Legacy Rep: 1632
    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

    On what kind of bottoms did you use the 22 pound Danforth yet, and on what size boat was that, and in which wind and wave conditions . . . ?
     
    Last edited: Jan 5, 2018
  11. gonzo
    Joined: Aug 2002
    Posts: 13,376
    Likes: 329, Points: 93, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    How will it not unhook when the wind reverses direction?
     
  12. Angélique
    Joined: Feb 2009
    Posts: 3,005
    Likes: 315, Points: 83, Legacy Rep: 1632
    Location: Belgium ⇄ The Netherlands

    Angélique aka Angel (only by name)

    Note that the Original Rocna also has an attachment hole for a tandem anchor, for which you can use your light anchor when the **** really hits the fan, I'll guess.

    But I'm not sure if the two lined up tandem anchors won't ever tangle up though, because if there is a chance for this, then it's most likely to happen in the worst situation, when your ability to handle these kind of problems is the least . . . :eek:

    [​IMG]

    The hole above the tandem anchor attachment hole is meant to rig an emergency retrieval line on, is what it says at Mantus . . .

    [​IMG]
     
    Last edited: Jan 5, 2018
  13. goodwilltoall
    Joined: Jul 2010
    Posts: 812
    Likes: 20, Points: 18, Legacy Rep: 31
    Location: nation of Ohio

    goodwilltoall Senior Member

    Bonaparte,

    Applaud your effort and it looks like a good design if the stock is beefed up AND you have the correct angle, maybe its just manufacturers saying this but have heard even 2 degree off can be a disaster.

    You say $100 dollars for materials which sounds right, figure another $100 for a welder yes , from your profile pic it seems you can do that but most people cant. Then you prolly have a $100 dollars to galvanize (have heard because of the hazards and regulations only grandfathered shops still do that) .

    Area im from is one of the steel capitals in America and to go pickup steel, cut it yourself, take it to a welder, drive 70 miles for galvanizing, then pick it up would add up in fuel as well as very time consuming.

    So in the end costs are very comparable and if you value your time then its even more exspensive.

    As a matter of fact just ystdy i was going to plop the 450 for the 22kg (48lb) rocna as I ve been manufacturing all kinds of other parts which is getting tiring and an anchor manufacture would be inefficient time wise.

    Of course if you find pleasure in such an endeavor, go for it.
     
  14. Bonaparte
    Joined: Sep 2017
    Posts: 62
    Likes: 20, Points: 8
    Location: Koper, Slovenia EU

    Bonaparte Junior Member

    The plate is bended.
     

  15. Bonaparte
    Joined: Sep 2017
    Posts: 62
    Likes: 20, Points: 8
    Location: Koper, Slovenia EU

    Bonaparte Junior Member


    Look at the 5:30min
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.