Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 25-02-2016, 14:56   #31
Registered User

Join Date: Jun 2012
Posts: 307
Re: Angle-grinder on boat: What's worked for you?

Metabo 800w. Its all we use, lots of metal fab. Old Boshes used to be the standard. having the locking thumb switch is a big improvment if you use it alot, or for things you are not supposed to...Rhodus skinny wheels and abrasive flap wheels and you can build anything.
__________________

__________________
Cruisingscotts is offline   Reply With Quote
Old 25-02-2016, 15:15   #32
Registered User

Join Date: Jul 2010
Location: Rockhampton, Australia
Boat: No boat, looking again.
Posts: 346
Re: Angle-grinder on boat: What's worked for you?

Thank you for your replies, folks. They have been great. Very interesting.

A couple of points I wanna make comment on:

banjoship and Brewgyver gave a reminder about the safety aspect with angle grinders. I fully agree. Even a light weight grinder can fling out stuff at high speed. And then there is the actual spinning disk which can give a nasty bite. Eye protection and an attitude of being careful with the darn thing is good for health.

The Garbone and his story of the homeless guy and the $7 grinder made me chuckle, so did donradcliffe with his response.

Mingget mentioned a multitool. I agree they are great. I got one, a Makita which had more watts than other ones I looked at but can still easily run from my little generator. I have been amazed how useful it has been. And amazed how little dust it throws around compared to the angle grinder.

Please keep the comments coming.
__________________

__________________
Troppo
https://mildadventurer.wordpress.com/
troppo is offline   Reply With Quote
Old 25-02-2016, 15:16   #33
Registered User
 
Snowpetrel's Avatar

Join Date: Jul 2012
Location: Hobart
Boat: Alloy Peterson 40
Posts: 3,071
Re: Angle-grinder on boat: What's worked for you?

I upgraded to a Makita 5 inch. After wasting my time and a few weekends replacing cheapies. It's done a tonne of steel work, cutting stainless and grinding for the last 11 years and still going strong. I've got a big 9 inch for the heavy work, but the little Makita is my go to tool for most stuff.

The 125mm 5inch size is way better than the 115 or 100's you can also reuse the old grinding disks from a 9 inch when they wear down (very naughty, technically not rated for the higher RPM... So beware!)

Since then I've got a lot of tools and the makitas haven't let me down, though I am sure dewalt, etc are just as good.

Sent from my HTC_0PCV2 using Cruisers Sailing Forum mobile app
__________________
My Ramblings
Snowpetrel is offline   Reply With Quote
Old 25-02-2016, 15:23   #34
Registered User
 
Reefmagnet's Avatar

Join Date: May 2008
Location: puɐןsuǝǝnb 'ʎɐʞɔɐɯ
Boat: Nantucket Island 33
Posts: 2,735
Re: Angle-grinder on boat: What's worked for you?

As an aside, be very careful using 9" grinders if you store the disks on the boat. There have been numerous instances of 9" disks flying apart violently after they have gotten wet. I have seen this happen first hand and the damage those disk fragments can do is surprising. Just last week, a man died not too far from my location when hit in the chest by an exploding disk from the grinder he was using. Not sure if that was caused by a disk that had been wet, but he had been working outside after heavy rains so a distinct possibility.

Sent from my SGP521 using Cruisers Sailing Forum mobile app
__________________
Reefmagnet is offline   Reply With Quote
Old 25-02-2016, 15:33   #35
Writing Full-Time Since 2014
 
thinwater's Avatar

Join Date: Nov 2008
Location: Deale, MD
Boat: PDQ Altair, 32/34
Posts: 4,332
Re: Angle-grinder on boat: What's worked for you?

Quote:
Originally Posted by Reefmagnet View Post
As an aside, be very careful using 9" grinders if you store the disks on the boat. There have been numerous instances of 9" disks flying apart violently after they have gotten wet. I have seen this happen first hand and the damage those disk fragments can do is surprising. Just last week, a man died not too far from my location when hit in the chest by an exploding disk from the grinder he was using. Not sure if that was caused by a disk that had been wet, but he had been working outside after heavy rains so a distinct possibility.

Sent from my SGP521 using Cruisers Sailing Forum mobile app
And NEVER drop a grinder, even a short distance, because wheels crack, particularly cut-off wheels. If you dropped it, put on a new wheel.
__________________
Gear Testing--Engineering--Sailing

Writing full-time since 2014.
Bookstore:http://sail-delmarva.blogspot.com/20...ook-store.html
thinwater is offline   Reply With Quote
Old 25-02-2016, 15:36   #36
Registered User

Join Date: Jun 2015
Posts: 315
Re: Angle-grinder on boat: What's worked for you?

Quote:
Originally Posted by Brewgyver View Post
Very good point, though possibly too selective. ANY AND ALL angle grinders need to be used with caution. Even the smaller, cheaper "slower" speed units develop enough torque to sprain a wrist, for example, kicking back if applied at the wrong angle with any kind of wheel in use, be it wire brush, cutting or grinding. Another hazard in that instance is the whole grinder flying out of your hand, which needless to say can cause serious injury.

And let us ALL remember to use at least ANSI z87 impact resistant eye protection. Reading this post, I just realized that I failed to take that precaution while using one just last week. I was wearing my reading glasses, but...

BTW, I have a corded DeWalt and a lithium Ryobi. Both good tools, and yes, the battery grinders go throug a fully charged (18 v) battery pretty quickly, but the cordless convenience is often more important.
Should see one side of my thumb from when an abrasive metal cutting disc bound up then exploded cutting some plate.
__________________
Siberianhusky is offline   Reply With Quote
Old 25-02-2016, 15:41   #37
Registered User

Join Date: Jan 2016
Posts: 429
Re: Angle-grinder on boat: What's worked for you?

Not a massive fan of cordless tools generally - fine if you use every day and charge every night but for occasional use you can pretty much guarantee a wait before doing the job you wanted it for.

Big exception is the 115mm. angle grinder.

I have a few mains powered ones but when the stick's gone and the rig needs cutting away and the salty's splashing all over, 12 Volts is just a lot safer than 240 or 120.

No safer re. arm/leg/other-appendage-removal, obviously.
__________________
unclemack is offline   Reply With Quote
Old 25-02-2016, 15:45   #38
Registered User
 
Snowpetrel's Avatar

Join Date: Jul 2012
Location: Hobart
Boat: Alloy Peterson 40
Posts: 3,071
Re: Angle-grinder on boat: What's worked for you?

Got a Makita cordless as well. Sucks the juice out of a 4 amp/hr lith ion batt real quick, but real handy for some jobs.

Sent from my HTC_0PCV2 using Cruisers Sailing Forum mobile app
__________________
My Ramblings
Snowpetrel is offline   Reply With Quote
Old 25-02-2016, 16:02   #39
Registered User

Join Date: Nov 2013
Location: Slidell, La.
Boat: Morgan Classic 33
Posts: 1,102
Re: Angle-grinder on boat: What's worked for you?

Quote:
Originally Posted by GILow View Post
Last time I went looking I had a lot of trouble finding one that had variable speed, but if you can find one I do recommend them. Aside from the extra control at low speed you can unload them a little and save the gearbox, plus I assume they draw less power at the lower settings (though that is not a given.).

I have a (I think) 4.5 amp Black and Decker, a 6 amp Bosch, a 10 amp Dewalt and a 13 amp Dewalt, all single speed. The things that always go bad with me are the cords and the switches. The gearheads heat up on all, especially when swinging heavy wheels for extended periods.

For variable speeds, I made a control with a dimmer switch, a box, a cord and a duplex receptacle. It works with any motor that has brushes, but not with induction motors. I was initially worried about burning up the tool windings or brushes but have had no problems with any of the tools I've used it with, and I've used it a lot.
Attached Thumbnails
Click image for larger version

Name:	1s.jpg
Views:	49
Size:	120.8 KB
ID:	119601  
__________________
jimbunyard is offline   Reply With Quote
Old 25-02-2016, 16:24   #40
Registered User
 
Reefmagnet's Avatar

Join Date: May 2008
Location: puɐןsuǝǝnb 'ʎɐʞɔɐɯ
Boat: Nantucket Island 33
Posts: 2,735
Re: Angle-grinder on boat: What's worked for you?

Quote:
Originally Posted by thinwater View Post
And NEVER drop a grinder, even a short distance, because wheels crack, particularly cut-off wheels. If you dropped it, put on a new wheel.
Cut off wheels aren't too bad as they are designed to flex and don't have enough mass to guarantee serious damage. Just the other day I had a PITA cutoff job to do at home that unavoidably led to more flexing of a 4", 1 mm cutoff wheel than I would have liked (made sure I kept the guard on for that one!). When it did fail in short order, I was impressed that it's failure mode was cleanly around the hub with no shattering or fracturing elsewhere at all. It finished up looking like a 45 rpm dukebox record and simply fell away from the spinning spindle and stopped. Almost as if it was designed to fail like that.
__________________
Reefmagnet is offline   Reply With Quote
Old 25-02-2016, 16:49   #41
Registered User

Join Date: Jan 2016
Posts: 429
Re: Angle-grinder on boat: What's worked for you?

I'd forgotten all about this...
There was a guy demonstrating an "exakt saw" on a shopping channel recently.

Only the second time ever I've looked at a shopping channel I swear and the first time I'd seen one of these.

Assumed it would be the typical toy-like diy rubbish but its tiny little shielded circular blade sawed a big chunk out of a car's brake disc in seconds.
Battery powered too.
Quite impressed - not enough to buy one yet though

Any of you lot used one?
__________________
unclemack is offline   Reply With Quote
Old 25-02-2016, 19:07   #42
Registered User

Join Date: Feb 2012
Location: Bellingham
Boat: Nordic 44
Posts: 90
Re: Angle-grinder on boat: What's worked for you?

Quote:
Originally Posted by Cruisingscotts View Post
Metabo 800w. Its all we use, lots of metal fab. Old Boshes used to be the standard. having the locking thumb switch is a big improvment if you use it alot, or for things you are not supposed to...Rhodus skinny wheels and abrasive flap wheels and you can build anything.
The Metabo survived 400 tons of ss316L plate welding only to spend a couple of years grinding fiberglass. With variable speed you can soft start it with your 600 W.

Sadly, for the boat I found a Fein multi tool. It has displaced the Metabo, a Dewalt random orbital and a Milwaukee Sawsall. Oddly, the cooling fan and shaft bearing setup are very similar to the Metabo which survives fiberglass dust better than all others. The unit is expensive and the countless array of blades and abrasives sure add up but takes up much less room aboard.

Sent from my LG-V410 using Cruisers Sailing Forum mobile app
__________________
japarker11 is offline   Reply With Quote
Old 25-02-2016, 20:54   #43
Registered User

Join Date: May 2012
Location: Halifax, NS, Canada
Boat: 47' Steel Roberts Cutter
Posts: 237
Re: Angle-grinder on boat: What's worked for you?

I'm surprised that Walter brand tools haven't reared their heads thus far. Look at what the welders and fitters use - their jobs depend on it. Around here, that's Walter or Metabo more often than not.

Among other metalwork, we replaced about 40 sq ft of plate on my boat last winter, working with a couple of old school shipyard hands. they took one look at my assortment of dewalt, Craftsman, Milwaukee and Bosch grinders, snorted, and went out to their trucks and brought in some 'real tools'.

After spending many hours on the business end of both my grinders and theirs, I have to agree that theirs were significantly better. but mine aren't dead yet... so I can't justify replacing them... yet. I know what I'll buy when the time comes...
__________________
NSboatman is offline   Reply With Quote
Old 25-02-2016, 21:00   #44
Registered User

Join Date: Jun 2012
Posts: 307
Re: Angle-grinder on boat: What's worked for you?

Quote:
Originally Posted by japarker11 View Post
The Metabo survived 400 tons of ss316L plate welding only to spend a couple of years grinding fiberglass. With variable speed you can soft start it with your 600 W.

Sadly, for the boat I found a Fein multi tool. It has displaced the Metabo, a Dewalt random orbital and a Milwaukee Sawsall. Oddly, the cooling fan and shaft bearing setup are very similar to the Metabo which survives fiberglass dust better than all others. The unit is expensive and the countless array of blades and abrasives sure add up but takes up much less room aboard.

Sent from my LG-V410 using Cruisers Sailing Forum mobile app

You know if the new offbrand blades and access will fit a fein? I have a older one wiht the bolt head vs. quick release. I woudl use it alot more but the tooling is so $$$$.
__________________
Cruisingscotts is offline   Reply With Quote
Old 25-02-2016, 21:06   #45
Resin Head
 
minaret's Avatar

Cruisers Forum Supporter

Join Date: Aug 2007
Location: Seattle WA
Boat: Nauticat
Posts: 7,199
Images: 52
Re: Angle-grinder on boat: What's worked for you?

Quote:
Originally Posted by Cruisingscotts View Post
You know if the new offbrand blades and access will fit a fein? I have a older one wiht the bolt head vs. quick release. I woudl use it alot more but the tooling is so $$$$.

Yes, they do.
__________________

__________________
O you who turn the wheel and look to windward,

Consider Phlebas, who was once handsome and tall as you.
minaret is online now   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Angle grinder to go aloft etc. Journeyman Deck hardware: Rigging, Sails & Hoisting 25 06-10-2013 14:51
Worked on my boat more than sailed it kirsi Meets & Greets 14 28-10-2012 07:24
Coffee Grinder ? wingontherock Provisioning: Food & Drink 44 10-12-2011 23:24
What Is the Best Grinder ? renbluefish Construction, Maintenance & Refit 31 23-02-2011 06:30
well i attacked my hull with a grinder scotty Construction, Maintenance & Refit 0 14-08-2008 19:18



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 14:03.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.