Repairing my Mast
- Thread starter littlescoop
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Cannot straighten a bent mast.
About 800 dollars should get you a new mast with shipping included. This would be for just the mast and not with all of the attachments. You would have to remove everything from your old mast and attach to the new spar.
Cannot straighten a bent mast.
About 800 dollars should get you a new mast with shipping included. This would be for just the mast and not with all of the attachments. You would have to remove everything from your old mast and attach to the new spar.
Also check Craigslist, etc. for someone parting out a boat. There's been a mast advertised near me in Annapolis for nearly a year now.
Yes a mast is about $475.00 new, But becouse my boat is a 74 I need all the upgrades and with all that it is almost $775.00 for another 150 I can get a new complete setup with all the bells and wistles.. shipping is about $375.00
$1,300.00 is what I would pay out the door for all new with up grades from Catalina Direct....Sound like this may be the best way?
$1,300.00 is what I would pay out the door for all new with up grades from Catalina Direct....Sound like this may be the best way?
does the mast ?
question would be
does the aluminum mast
loose some of it's strenth if re-straightened ?
a question for one who works with metals
I did some time in repair and fab shops many years ago
we straightened a lot of things
that those guys and gals had bent
my oldest friend of 50 years
works in a metal fab shop yet still today
I have brought several things to him
so as to straighten from me over the years
one time he just wanted to put a new (iron) axle in
I said "no just do your best at straightening it"
the axle turned out next to perfect
and the repaired trailer pulled like a dream
with pullys and braces and the know how
a man who knows his tools and how to use them
should be able to get that thing pretty darn straight
straight enough where only you will notice
(with a tuned eye that is)
a local fab shop
that is looking to be tested in their skills
should be able to tackle this job
for between 50 to 150 dollars
just for the challenge
my friend would take a bent mast to his shop
and I'am sure do a decent repair for 50 bucks
that is with me having to force that amount on him
a good sailing day wished for all from Mountainman
MetalGeek : Code, Metal and Cleverness: How to Bend Tubing and Pipe by Hand
Use the tools that are available. Difficult bending can aided by the proper application of a forklift. Jigs can be mounted vertically on shop pillars so you can use your body weight. It looks silly bouncing up and down, but it's effective.
Bending Data
Metal always springs back from the jig. Here are a few charts that show results I've gotten. Some of the data may not make sense, and some of it may be wrong. Metal hardness can vary, even from the same mill. (((Aluminum))) is more unpredictable than steel.
http://metalgeek.com/archives/2005/05/01/000047.php
a littler smaller block and tackle shown than what we are looking for regarding this repair -- hydraulic jacks and pulling systems may also come into play
Block and Tackle System
For large cross sections (e.g., 2" x 2"), it is useful to have a block and tackle system with custom fittings to help bend the wood and or metals.
question would be
does the aluminum mast
loose some of it's strenth if re-straightened ?
a question for one who works with metals
I did some time in repair and fab shops many years ago
we straightened a lot of things
that those guys and gals had bent
my oldest friend of 50 years
works in a metal fab shop yet still today
I have brought several things to him
so as to straighten from me over the years
one time he just wanted to put a new (iron) axle in
I said "no just do your best at straightening it"
the axle turned out next to perfect
and the repaired trailer pulled like a dream
with pullys and braces and the know how
a man who knows his tools and how to use them
should be able to get that thing pretty darn straight
straight enough where only you will notice
(with a tuned eye that is)
a local fab shop
that is looking to be tested in their skills
should be able to tackle this job
for between 50 to 150 dollars
just for the challenge
my friend would take a bent mast to his shop
and I'am sure do a decent repair for 50 bucks
that is with me having to force that amount on him
a good sailing day wished for all from Mountainman
MetalGeek : Code, Metal and Cleverness: How to Bend Tubing and Pipe by Hand
Use the tools that are available. Difficult bending can aided by the proper application of a forklift. Jigs can be mounted vertically on shop pillars so you can use your body weight. It looks silly bouncing up and down, but it's effective.
Bending Data
Metal always springs back from the jig. Here are a few charts that show results I've gotten. Some of the data may not make sense, and some of it may be wrong. Metal hardness can vary, even from the same mill. (((Aluminum))) is more unpredictable than steel.
http://metalgeek.com/archives/2005/05/01/000047.php
a littler smaller block and tackle shown than what we are looking for regarding this repair -- hydraulic jacks and pulling systems may also come into play
Block and Tackle System
Aluminum generally hardens when worked. Although it won't lose strength, it can become more brittle and theoretically more likely to develop cracks. In the real world however, the biggest problem would be getting it straightened in only a few moves, and in preventing distortion of the extrusion's shape. Should the profile be crushed by the work, the mast would lose much strength. A machinist would probably tell you that a die made to the interior shape of the mast should be forced thru the interior after straightening, to ensure the shape still meets design strength. Several cycles of over bending and correction would work-harden the area much like a paper clip is hardened and broken by bending. Also, without special tools it would be almost impossible to apply the effort correctly just to the affected area.
If you want a project just to see if you can do it, go for it. But you'll have more money and time in trying to straighten it than in buying a good one. You could cover the cost by working a second job for fewer hours than you'll spend trying to straighten that thing.
If you want a project just to see if you can do it, go for it. But you'll have more money and time in trying to straighten it than in buying a good one. You could cover the cost by working a second job for fewer hours than you'll spend trying to straighten that thing.
mast straightening -- Moderately Challenging
MAST REPAIR - Bent masts can be straightened if no kinks exist. To straighten, clamp the mast to a bench or support and re-bend in the opposite direction. Usually the mast will have to be moved so that the straightening takes place over a large area rather than at one spot. Either a contoured or soft support should be placed under the mast to avoid creases or kinks. The secret to straightening masts is in making many gradual bends, rechecking each time. The straightness should be checked with the luff groove up, since the weight of the mast itself will cause a downward bend making a sighting inaccurate.
http://www.torresen.com/butterfly/butterfly.php?p=Mast_Boom_Repair
It's a shipboard joke to tell a new seaman to find a "mast straightener," but straightening a bent mast takes just that, in the form of a specialized jig and a hydraulic jack. Trying to take the bend out of a sailboat's aluminum mast is a last ditch effort, one of those things that may work, and one that is as likely to end in the purchase of a new mast as it is in a straightened mast. If you do straighten the mast, though, you may find the project is worth the effort.
Difficulty: Moderately Challenging Instructions
Things You'll Need
"just for the challenge
my friend would take a bent mast to his shop
and I'am sure do a decent repair for 50 bucks
that is with me having to force that amount on him"
I had lunch with this man yesterday
mentioned the straightening of a bent mast
as he was looking out into the restaurants parking
he said that with the help of a few guys
and a couple of nicely placed poles
he did not think it to be much of a problem
perfect - probably not
but - much better than a bent one
these are the men
who have worked with metals for their livelihood
MAST REPAIR - Bent masts can be straightened if no kinks exist. To straighten, clamp the mast to a bench or support and re-bend in the opposite direction. Usually the mast will have to be moved so that the straightening takes place over a large area rather than at one spot. Either a contoured or soft support should be placed under the mast to avoid creases or kinks. The secret to straightening masts is in making many gradual bends, rechecking each time. The straightness should be checked with the luff groove up, since the weight of the mast itself will cause a downward bend making a sighting inaccurate.
http://www.torresen.com/butterfly/butterfly.php?p=Mast_Boom_Repair
It's a shipboard joke to tell a new seaman to find a "mast straightener," but straightening a bent mast takes just that, in the form of a specialized jig and a hydraulic jack. Trying to take the bend out of a sailboat's aluminum mast is a last ditch effort, one of those things that may work, and one that is as likely to end in the purchase of a new mast as it is in a straightened mast. If you do straighten the mast, though, you may find the project is worth the effort.
Difficulty: Moderately Challenging Instructions
Things You'll Need
- 8-foot framing studs
- 8-foot by 12-inch by 1-inch plank
- 48 No. 2 Screws, 2 1/2-inches long
- Drill
- Screwdriver bit
- Rebar
- Hydraulic jack
- Hammer
- Nails
- Adjustable wrench
- <LI class=section itxtHarvested="0" itxtNodeId="2">
- <LI class=step itxtHarvested="0" itxtNodeId="12">1 Set two 8-foot framing studs on edge, parallel to each other. Lay an 8-foot-by-12-inch plank flat on top of them, positioning the studs so that they are even with the outside edges of the 6-inch wide plank.
<LI class=step itxtHarvested="0" itxtNodeId="11">2 Drive number 4 screws, each 2 1/2-inches long, through the 6-inch plank and into the edges of one of the studs using a drill and screwdriver bit, so the stud is secured to the 6-inch plank by screws every 4 inches, . Repeat to secure both studs to the same side of the plank 8 inches apart, to form an 8-inch channel in which to lay the mast.
<LI class=step itxtHarvested="0" itxtNodeId="10">3 Build a second jig, using more wall studs and another 12 inch plank. Secure one of the now-assembled mast jigs to the top of a work table.
<LI class=step itxtHarvested="0" itxtNodeId="9">4 Insert lengths of rebar into the luff groove, the channel on the mast where the sail is secured. This prevents damage to the groove as the mast is straightened.
<LI class=step itxtHarvested="0" itxtNodeId="8">5 Set the mast into the part of the wooden jig that's bolted to the table so that the bend is just beyond the end of the jig. Set the second, movable jig on the mast so the bend is between the two parts of the jig.
<LI class=step itxtHarvested="0" itxtNodeId="7">6 Lay a closed hydraulic jack against the movable section of the jig. Temporarily secure a 12-inch length of framing stud to the work table to act as a "footer" for the jack to press on, using a hammer and nails.
<LI class=step itxtHarvested="0" itxtNodeId="6">7 Operate the hydraulic jack slowly, taking care not to crack the aluminum mast. Attach an adjustable wrench to the edge of the luff groove, at the bend.
- 8 Push the rebar from below the bend up into the luff groove, using the wrench as a lever to open the groove far enough to straighten the mast as you operate the jack.
- 9 Continue to operate the jack until the mast is straight.
Read more: How to Fix a Bent Boat Mast | eHow.com http://www.ehow.com/how_8618795_fix-bent-boat-mast.html#ixzz1YrOyMbGi
- <LI class=step itxtHarvested="0" itxtNodeId="12">1 Set two 8-foot framing studs on edge, parallel to each other. Lay an 8-foot-by-12-inch plank flat on top of them, positioning the studs so that they are even with the outside edges of the 6-inch wide plank.
"just for the challenge
my friend would take a bent mast to his shop
and I'am sure do a decent repair for 50 bucks
that is with me having to force that amount on him"
I had lunch with this man yesterday
mentioned the straightening of a bent mast
as he was looking out into the restaurants parking
he said that with the help of a few guys
and a couple of nicely placed poles
he did not think it to be much of a problem
perfect - probably not
but - much better than a bent one
these are the men
who have worked with metals for their livelihood
picture
do you have a picture of the bent mast ?
got me wondering how bad it is bent ?
did you do it or did it come that way ?
things happen on the water
all so fast at times
I'am just getting back to sailing
after many years away
years ago I had a mast incident
my crew member was a little too slow
but I the shipper will take responsibility
small amount of fiberglass work
and all was well again
Mountainman
do you have a picture of the bent mast ?
got me wondering how bad it is bent ?
did you do it or did it come that way ?
things happen on the water
all so fast at times
I'am just getting back to sailing
after many years away
years ago I had a mast incident
my crew member was a little too slow
but I the shipper will take responsibility
small amount of fiberglass work
and all was well again
Mountainman
this man has played with some tools in his time
Get some 2"x4" and 2"x6" lumber.
Build supports about 2' long that are C shaped channels that fit snugly on the mast. space those 4' apart centered on the bend. Clamp them on with big hose clamps.
Make another 2' C channel and hose clamp it on the bend on the opposite side of the mast right on the bend. You may be able to put the mast under your trailer crossways to use it to support the two C channels, and then put a small hydraulic jack under the middle C channel and start jacking.
Have the trailer hooked up to the truck of course to keep it from being pushed up with out bending the mast back.
If you have a table saw, you can rip the lumber so that it just fits overt the mast so the C channels fit snugly. Screw them together. Then hose clamp them on. The hose clamps are just to keep the braces in place, it will make the job easier. Use the softest lumber you can find that way it will crush against the mast and conform to it's shape a little better. With the hydraulic jack you will be able to control the bending much better than any other way.
If the mast set up won't fit under the trailer, put it under two truck trailer hitches, just make sure that the two parts touching the truck are the wood clamped areas.
Get as long of a straight edge as you can to check your progress in bending and take it slow. You may be able to look into the end of the mast with a flash light to see when you are getting close to straight.
I know you didn't want to talk about it, but where the repair is will be under mainly a compressive load. It doubt very seriously if it will be a problem anyway on a 23' mast. But I don't know how thick the aluminum is you are dealing with.
these guys are having too much fun
straightening a small mast -- but -- same idea
done on a very small scale
((would take a lot of fat rear ends to do a C-22 mast !!!))
http://youtu.be/jwfO8MK7zYE
Get some 2"x4" and 2"x6" lumber.
Build supports about 2' long that are C shaped channels that fit snugly on the mast. space those 4' apart centered on the bend. Clamp them on with big hose clamps.
Make another 2' C channel and hose clamp it on the bend on the opposite side of the mast right on the bend. You may be able to put the mast under your trailer crossways to use it to support the two C channels, and then put a small hydraulic jack under the middle C channel and start jacking.
Have the trailer hooked up to the truck of course to keep it from being pushed up with out bending the mast back.
If you have a table saw, you can rip the lumber so that it just fits overt the mast so the C channels fit snugly. Screw them together. Then hose clamp them on. The hose clamps are just to keep the braces in place, it will make the job easier. Use the softest lumber you can find that way it will crush against the mast and conform to it's shape a little better. With the hydraulic jack you will be able to control the bending much better than any other way.
If the mast set up won't fit under the trailer, put it under two truck trailer hitches, just make sure that the two parts touching the truck are the wood clamped areas.
Get as long of a straight edge as you can to check your progress in bending and take it slow. You may be able to look into the end of the mast with a flash light to see when you are getting close to straight.
I know you didn't want to talk about it, but where the repair is will be under mainly a compressive load. It doubt very seriously if it will be a problem anyway on a 23' mast. But I don't know how thick the aluminum is you are dealing with.
these guys are having too much fun
straightening a small mast -- but -- same idea
done on a very small scale
((would take a lot of fat rear ends to do a C-22 mast !!!))
http://youtu.be/jwfO8MK7zYE
My Mast is 25foot, I found a sail boat mast builder in Watsonville California about 30miles from where I live. He said he may be able to fix it for about $150.00 I will be dropping it off this morning....
nice
((if))
he is willing to take on the task after seeing it
the end result should be very pleasing
Mountainman
Mast back in just 4 hours and they did it for free... Pays to have good friends in the business:dance::dance::dance:
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your mast turned out nice
looks near perfect in the picture
I wish that I had body parts
that were that straight !!
I have be straightening things for a long time
from 1970 to 1973 I owned a bicycle shop
we straightened wheels, frames, forks etc etc
later in life to the small engine repair shop
bent a few things back to order there
then Equip Tec for the City of San Diego
amazing what a couple of guys
can bend if needed
with two large cheater bars
for the bending of large items if needed
car repair shops
that specialize in frame straightening
are pretty amazing at what they do
Mountainman
looks near perfect in the picture
I wish that I had body parts
that were that straight !!
I have be straightening things for a long time
from 1970 to 1973 I owned a bicycle shop
we straightened wheels, frames, forks etc etc
later in life to the small engine repair shop
bent a few things back to order there
then Equip Tec for the City of San Diego
amazing what a couple of guys
can bend if needed
with two large cheater bars
for the bending of large items if needed
car repair shops
that specialize in frame straightening
are pretty amazing at what they do
Mountainman
They do alot of farm stuff here in the salinas valley this was done all by hand and no heat,they have lage machines
Finished painting today
Finished painting today
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