Author Topic: Any tip what to do to warped boards?  (Read 17703 times)

0 Members and 1 Guest are viewing this topic.

Offline Reiska

  • Posts: 1162
  • Hackers build things, Crackers break them.
Any tip what to do to warped boards?
« on: July 15, 2012, 04:58 AM »
I've been going through my pile of leftovers from last years deck project an a bunch of boards ranging from 2x4 to 28x120mm have warped into corkscrew.

Is there anything one could do to unwarp these?
The sky's the limit in my workshop, literally. [big grin]

Festool USA does not pre-approve the contents of this website nor endorse the application or use of any Festool product in any way other than in the manner described in the Festool Instruction Manual. To reduce the risk of serious injury and/or damage to your Festool product, always read, understand and follow all warnings and instructions in your Festool product's Instruction Manual. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. Festool makes no representations about the accuracy, reliability, completeness or timeliness of the material on this website or about the results to be obtained from using the website. Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Your use of any material contained on this website is entirely at your own risk. The content contained on this site is provided for informational purposes only and does not constitute professional advice.


Offline Peter Parfitt

  • Magazine/Blog Author
  • *
  • Posts: 4039
    • New Brit Workshop on YouTube
Re: Any tip what to do to warped boards?
« Reply #1 on: July 15, 2012, 05:16 AM »
Hi Reiska

Almost every piece of wood that goes into my workshop is never really true. For small twists and bends I start on the jointer (mine is a planer thicknesser and can be set up like a jointer) and get a face side followed by a face edge flat and at right angles. Once that is done you can thickness it to get a squared up block.

I sometimes find some really badly twisted stock and take a good look at each piece before deciding what is best. I usually cut the wood into shorter sections and true up in the normal way. If you have a piece that you do not want to shorten but it is too twisted to easily true up on the jointer then you can attached straight edges to act as a guide for thicknessing the opposite side. You can mark a straight line and try and re-saw it on the bandsaw or you can tackle it by hand (not for me anymore).

I would not attempt to 'un-twist' a piece by soaking, steaming or heating as it is never reliable.

Finally, there is always the firewood pile!

Peter

Offline Reiska

  • Posts: 1162
  • Hackers build things, Crackers break them.
Re: Any tip what to do to warped boards?
« Reply #2 on: July 15, 2012, 06:16 AM »
Ah, that's precisely what I didn't want to hear since I don't have access to a planer/thicknesser nor a bandsaw nor do I have a fireplace either  [sad]

I can edge joint to some extent with my EHL65 in it's stand, but it's not good at any longer lengths of board and limited to 65mm width. And I can cut strips with my TS-saw with either the guide rails or in the CMS, but I don't think I can get away with them tools from the thicknessing phase?

I guess I'll have to get cracking on building the boxes for the S.O.'s planting gear and reclaim the whole shed for myself as a man-cave - maybe then I could somehow fit a tabletop planer/thicknesser in there...
Where's the Tardis when you need one?  [scratch chin]
The sky's the limit in my workshop, literally. [big grin]

Offline Sparktrician

  • Posts: 3618
Re: Any tip what to do to warped boards?
« Reply #3 on: July 15, 2012, 08:16 AM »
Don't throw it out.  Find a local woodcarving artist and make a deal.  They could make you a wood sculpture for your business in return. 

 [smile]
- Willy -

 "Remember, a chip on the shoulder is a sure sign of wood higher up." - Brigham Young

Offline RonWen

  • Retailer
  • *
  • Posts: 1701
    • Ordering
Re: Any tip what to do to warped boards?
« Reply #4 on: July 15, 2012, 08:54 AM »
Ah, that's precisely what I didn't want to hear since I don't have access to a planer/thicknesser nor a bandsaw nor do I have a fireplace either  [sad]

I can edge joint to some extent with my EHL65 in it's stand, but it's not good at any longer lengths of board and limited to 65mm width. And I can cut strips with my TS-saw with either the guide rails or in the CMS, but I don't think I can get away with them tools from the thicknessing phase?

I guess I'll have to get cracking on building the boxes for the S.O.'s planting gear and reclaim the whole shed for myself as a man-cave - maybe then I could somehow fit a tabletop planer/thicknesser in there...
Where's the Tardis when you need one?  [scratch chin]

The most reliable method to "straighten" timber is by removing stock.  I wouldn't trust lumber that had been stressed or coached back to flat.
Since you don't have a jointer/planer I assume you are building furniture for enjoyment not profit.

I don't have a power planer but I do have a power jointer which is burried & hardly ever used -- I discovered the quiet, dustless joy of using bench planes and always use those to bring stock to size & flatness after I've sawed to near net. I can control dimensions much more accurately (<.001") than is possible with power tools. 

If I were pressed to earn a profit then I would probably want powered milling.

Offline Reiska

  • Posts: 1162
  • Hackers build things, Crackers break them.
Re: Any tip what to do to warped boards?
« Reply #5 on: July 15, 2012, 09:53 AM »
I'm purely a hobbyist with woodworking - I earn a living with keeping banks compliant to regulation [big grin].

If I had even a bit of permanent heated shop space I would get a 300mm jointer/planer since that's how I learned to prepare boards in school all those years ago, but don't have any and have to make do with predimentioned stock from the lumberyard.

For some reason those lunchbox thicknessers don't seem to be sold in Europe much - only saw some in the UK I think one was a Jet and another was an Axminster labeled China-import. The neat DeWalt ones seem to have stayed on your side of the pond (the one with proper roller locks model 734 maybe?).
The sky's the limit in my workshop, literally. [big grin]

Offline Reiska

  • Posts: 1162
  • Hackers build things, Crackers break them.
Re: Any tip what to do to warped boards?
« Reply #6 on: July 15, 2012, 09:59 AM »
Ah, got carried away in my last post a bit. I currently only have a Stanley 4C smoothing hand plane, though I'm currently waiting for pictures of a friends fathers tool collection who used to be a boat builder before he passed away. Apparently he had a large selection of hand tools that no-one in the family wants so I'll get first picks and I'm hoping to get lucky with some nice tools.
The sky's the limit in my workshop, literally. [big grin]

Offline Peter Parfitt

  • Magazine/Blog Author
  • *
  • Posts: 4039
    • New Brit Workshop on YouTube
Re: Any tip what to do to warped boards?
« Reply #7 on: July 15, 2012, 10:45 AM »
Reiska

My late uncle was a boat builder and he was probably the finest carpenter that I have ever met. His tools were amazing. If that is anything to go by then you may be a very lucky chap. You still need a planer/thicknesser and a bandsaw. I could not function without those two machines. So, build yourself a shed and get some tools to go in it! I will send you some plans if that would help.

Peter

Offline Michael Kellough

  • Posts: 3475
Re: Any tip what to do to warped boards?
« Reply #8 on: July 15, 2012, 10:58 AM »
You have to cut them into smaller pieces to minimize the relative amount of warp (relative warp will be that same in a consistently twisted piece no matter the length) and then glue into larger assemblies, like table tops. Trying to reduce the twist by flattening results in smaller usable (thickness) sections anyway so you might as well re-cut and waste less wood.

Cutting twisted wood is a good job for a band saw.

You need a good strong bench for hand planing but a power planer like the 65 does not. If you re-saw the stock down to the width the 65 can handle you can get it into good shape. Since you don't have a planer, get the inner joining surfaces true enough to fit well and then you can sand the exterior to suit.

The boatbuilder likely had some very interesting tools. Don't miss this opportunity. Do some studying.
appearance can be deceiving. An old well used chisel indicates that it was a fine combination of durability and ease of sharpening rather than just and "old" tool to be passed up.
« Last Edit: July 15, 2012, 11:32 AM by Michael Kellough »

Offline RonWen

  • Retailer
  • *
  • Posts: 1701
    • Ordering
Re: Any tip what to do to warped boards?
« Reply #9 on: July 15, 2012, 11:20 AM »
Reiska

My late uncle was a boat builder and he was probably the finest carpenter that I have ever met. His tools were amazing. If that is anything to go by then you may be a very lucky chap. You still need a planer/thicknesser and a bandsaw. I could not function without those two machines. So, build yourself a shed and get some tools to go in it! I will send you some plans if that would help.

Peter

Absolutely.  I have a great 20" bandsaw that is my primary power tool for sizing lumber.  If your choice is EITHER a bandsaw or a thicknesser/jointer (space/cost?) then I would choose the bandsaw.

Offline SRSemenza

  • Global Moderator
  • *
  • Posts: 8520
  • Finger Lakes Region, NY State , USA
Re: Any tip what to do to warped boards?
« Reply #10 on: July 15, 2012, 11:54 AM »
What type of wood is it?  Pressure treated?



Seth

Offline Nigel

  • Posts: 641
Re: Any tip what to do to warped boards?
« Reply #11 on: July 15, 2012, 12:07 PM »
I'm purely a hobbyist with woodworking - I earn a living with keeping banks compliant to regulation [big grin].


That must be difficult job! [smile]

I have one of those Axminster lunchbox thicknessers [344cx] dont know if they still sell them . It's actually quite good but I have to buy disposable blades all the time [sad] Don't have a band saw but I often think about getting one....anyone heard of an Italian make Meber?

Offline Kev

  • Posts: 7651
Re: Any tip what to do to warped boards?
« Reply #12 on: July 15, 2012, 12:16 PM »
I'm purely a hobbyist with woodworking - I earn a living with keeping banks compliant to regulation [big grin].


That must be difficult job! [smile]


Have you ever seen someone herding cats ? 

Offline RonWen

  • Retailer
  • *
  • Posts: 1701
    • Ordering
Re: Any tip what to do to warped boards?
« Reply #13 on: July 15, 2012, 12:34 PM »
I'm purely a hobbyist with woodworking - I earn a living with keeping banks compliant to regulation [big grin].


That must be difficult job! [smile]

I have one of those Axminster lunchbox thicknessers [344cx] dont know if they still sell them . It's actually quite good but I have to buy disposable blades all the time [sad] Don't have a band saw but I often think about getting one....anyone heard of an Italian make Meber?

For some reason (unknown to me, others probably know) the best bandsaws seem to come from Italy with some exceptions like the old Inca machines (small models).  There are many on here better versed with the various manufacturers but I've not heard of any bad bandsaws coming from Italy (things do change though).

Offline Nigel

  • Posts: 641
Re: Any tip what to do to warped boards?
« Reply #14 on: July 15, 2012, 12:54 PM »
Aye they seem to make good saws in Italy. I've just bought a firewood saw [700mm blade] and it's fantastic. I'm not sure but I seem to recall your Laguna bandsaws originate in Italy.

Offline Chris Wong

  • Festool Dealer
  • *
  • Posts: 866
  • I make sculptural furniture.
    • Flair Woodworks
Re: Any tip what to do to warped boards?
« Reply #15 on: July 15, 2012, 03:14 PM »
I'm more likely to toss a straight/flat piece of wood in the burn pile than a really warped piece.
Chris Wong, http://FlairWoodworks.com

The thoughts and ideas expressed here are my own and do not necessarily represent those of http://UltimateTools.ca.  But Dan does say "hello".

Offline joraft

  • Posts: 860
Re: Any tip what to do to warped boards?
« Reply #16 on: July 15, 2012, 04:07 PM »

...anyone heard of an Italian make Meber?


I've never owned or operated a Meber, but I do know they have been making bandsaws for over fifty years just outside of Balogna, Italy.

Their machines seem to be well regarded. They were the first company to build bandsaws for Laguna Tools, back when Laguna was considered top of the line.  Laguna later switched to ACM, also in Italy, and then to several other suppliers in several different countries.
John

Offline Scott Burt

  • Magazine/Blog Author
  • *
  • Posts: 1985
  • painter/writer/educator
    • Prep to Finish
Re: Any tip what to do to warped boards?
« Reply #17 on: July 15, 2012, 05:49 PM »
Step One: Shop Cleanout

53484-0

Offline Scott Burt

  • Magazine/Blog Author
  • *
  • Posts: 1985
  • painter/writer/educator
    • Prep to Finish
Re: Any tip what to do to warped boards?
« Reply #18 on: July 15, 2012, 05:51 PM »
Step Two:

53486-0

Offline RonWen

  • Retailer
  • *
  • Posts: 1701
    • Ordering
Re: Any tip what to do to warped boards?
« Reply #19 on: July 15, 2012, 06:18 PM »
Step Two:

(Attachment Link)

You broke my heart Scott -- there appeared to be a fair amount of thick cherry & other hardwoods in there...  [sad]  [crying]
« Last Edit: July 15, 2012, 06:20 PM by RonWen »

Offline RonWen

  • Retailer
  • *
  • Posts: 1701
    • Ordering
Re: Any tip what to do to warped boards?
« Reply #20 on: July 15, 2012, 06:20 PM »

...anyone heard of an Italian make Meber?


I've never owned or operated a Meber, but I do know they have been making bandsaws for over fifty years just outside of Balogna, Italy.

Their machines seem to be well regarded. They were the first company to build bandsaws for Laguna Tools, back when Laguna was considered top of the line.  Laguna later switched to ACM, also in Italy, and then to several other suppliers in several different countries.

John, are you aware of ANY poor quality bandsaws from Italy?   [unsure]

Offline PaulMarcel

  • Posts: 1456
    • Voilà, my blog
Re: Any tip what to do to warped boards?
« Reply #21 on: July 15, 2012, 06:22 PM »
John, are you aware of ANY poor quality bandsaws from Italy?   [unsure]

Those from 'porto di merci' are questionable  [tongue]
Visit my blog for Festool adventures
IG: @PaulMarcel328

Offline RonWen

  • Retailer
  • *
  • Posts: 1701
    • Ordering
Re: Any tip what to do to warped boards?
« Reply #22 on: July 15, 2012, 06:25 PM »
I'm more likely to toss a straight/flat piece of wood in the burn pile than a really warped piece.

I believe that to be true -- you seem to get a bit of inspiration from that which isn't straight & narrow.  [wink]

Offline Scott Burt

  • Magazine/Blog Author
  • *
  • Posts: 1985
  • painter/writer/educator
    • Prep to Finish
Re: Any tip what to do to warped boards?
« Reply #23 on: July 15, 2012, 06:44 PM »
Step Two:

(Attachment Link)

You broke my heart Scott -- there appeared to be a fair amount of thick cherry & other hardwoods in there...  [sad]  [crying]

No cherry, I promise.

Offline joraft

  • Posts: 860
Re: Any tip what to do to warped boards?
« Reply #24 on: July 15, 2012, 07:11 PM »

John, are you aware of ANY poor quality bandsaws from Italy?   [unsure]


Ron, I have not run across any.

I don't know why the Italians have such a reputation for manufacturing quality bandsaws. It could be that for so long they have supplied more to the rest of the world than any other country. They have a huge interest in maintaining a stellar reputation.
John

Offline Jesse Cloud

  • Posts: 1717
  • Festooling at the end of a dirt road in New Mexico
Re: Any tip what to do to warped boards?
« Reply #25 on: July 15, 2012, 07:39 PM »
In spite of my Festool addiction, I am normally a rather frugal kind of guy and I hate to throw things away.

But, a pile of twisted wood can take a lot of time away from more productive shop activities and wind up creating a heartbreak anyhow.

I spend a lot of time at the lumberyard carefully matching grain patterns and finding just the right figure for that curved leg, so its very unlikely that the scrap pile will yield anything very useful.

So, unless there is something very special about this wood that merits the time needed to salvage it, it sounds like firewood to me.

Move on, find better wood, sticker it well, mill it to near spec (if not joining that day), then mill to final specifications just before you join it.  Glue up the day you cut the joinery if you can.  Then you will have well made furniture that stays that way!

Offline Nigel

  • Posts: 641
Re: Any tip what to do to warped boards?
« Reply #26 on: July 16, 2012, 01:01 AM »

...anyone heard of an Italian make Meber?


I've never owned or operated a Meber, but I do know they have been making bandsaws for over fifty years just outside of Balogna, Italy.

Their machines seem to be well regarded. They were the first company to build bandsaws for Laguna Tools, back when Laguna was considered top of the line.  Laguna later switched to ACM, also in Italy, and then to several other suppliers in several different countries.

Thanks for the info John.

Offline Chris Wong

  • Festool Dealer
  • *
  • Posts: 866
  • I make sculptural furniture.
    • Flair Woodworks
Re: Any tip what to do to warped boards?
« Reply #27 on: July 16, 2012, 03:39 AM »
I'm more likely to toss a straight/flat piece of wood in the burn pile than a really warped piece.

I believe that to be true -- you seem to get a bit of inspiration from that which isn't straight & narrow.  [wink]

You mean, like my mind?
Chris Wong, http://FlairWoodworks.com

The thoughts and ideas expressed here are my own and do not necessarily represent those of http://UltimateTools.ca.  But Dan does say "hello".

Offline Reiska

  • Posts: 1162
  • Hackers build things, Crackers break them.
Re: Any tip what to do to warped boards?
« Reply #28 on: July 16, 2012, 06:23 AM »
Nothing special in this pile - just that its pressure treated so can't go and burn it.

I managed to give some of them last night to a friend whos going to repair some rotten backyard barcounter roof posts where the twist doesn't really matter. So at least not all of is waste. :-)

I regain more space, he get free lumber to fix his roof - everyone wins [big grin]
The sky's the limit in my workshop, literally. [big grin]

Offline Reiska

  • Posts: 1162
  • Hackers build things, Crackers break them.
Re: Any tip what to do to warped boards?
« Reply #29 on: July 16, 2012, 06:33 AM »
So, build yourself a shed and get some tools to go in it! I will send you some plans if that would help.

Thanks for the offer Peter, unfortunately living in an attached house means that I can't build any permanent structures that aren't identical to my 10 neighbors and have building permits cleared from the town.

So I'll just have to quietly work on insides of our current garden shed and maybe come up with creative ways of turning it into a dry space with heating somehow. It would be easiest to just pull the old one down and rebuild from ground up, but that would call too much attention to itself.
The sky's the limit in my workshop, literally. [big grin]

Offline Tinker

  • Posts: 3656
Re: Any tip what to do to warped boards?
« Reply #30 on: July 23, 2012, 07:53 AM »
Reiska, Did you mention you have the HL 65?
I have the 850 and use it all the time for warped & twisted lumber.  Using winding sticks, i can get one side almost purfict (spelling pun? yes).  On very wide board surfacing, i have not the skill or touch to get rid of edge ridges from the corners of the blade, but i can get the overall surface close to flat. the final touches get smoothed down with hand planes or, sometimes just a touching up with the RO 150.  Once one side is flat, the board gets flattened on both sides, and parallel, by going thru the planer. If too wide for the planer, it is a good time to sharpen your skills by doing the other side with your HL 65 and hand planes. 

That part can be funnnnn.
Tinker 
Wayne H. Tinker

Festool USA does not pre-approve the contents of this website nor endorse the application or use of any Festool product in any way other than in the manner described in the Festool Instruction Manual. To reduce the risk of serious injury and/or damage to your Festool product, always read, understand and follow all warnings and instructions in your Festool product's Instruction Manual. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. Festool makes no representations about the accuracy, reliability, completeness or timeliness of the material on this website or about the results to be obtained from using the website. Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Your use of any material contained on this website is entirely at your own risk. The content contained on this site is provided for informational purposes only and does not constitute professional advice.


Offline Reiska

  • Posts: 1162
  • Hackers build things, Crackers break them.
Re: Any tip what to do to warped boards?
« Reply #31 on: July 23, 2012, 10:54 AM »
Thanks Tinker  [wink]

I'm actually trying to make up my mind on what to do a table top I have that has warped into a slight upside down U-shape - do I try to straighten it with my Stanley 4C or the EHL65 or just sand the old lacquer off and let it stay warped under the new lacquer I'm planning on putting on it. It is solid fir of about 5cm (2") thick so I think I would need to remove about 3-5mm of material on both sides to flatten it out again so it feels a bit large to do by hand but I'm quite lost on what sort of technique to use with a hand held power planer to tackle something like this since it's a 900mm x 1500mm table top. I've never used a power planer for anything else but planing edges of boards.

Can one use a power planer like a normal hand plane i.e. plane across a surface to flatten it with long strokes?
The sky's the limit in my workshop, literally. [big grin]

Offline Tinker

  • Posts: 3656
Re: Any tip what to do to warped boards?
« Reply #32 on: July 23, 2012, 11:04 AM »
>>>Can one use a power planer like a normal hand plane i.e. plane across a surface to flatten it with long strokes?<<<

I do that. (You should make good use of winding sticks to keep track of your progress.) The only problem i find is that the ends of the 850 blade is a sharp 90º angle and i have problems making the cuts even from one pass to the other.  I set the blade as shallow as possible (or sensible) and make passes with the grain.  with a hand plane, i might go across the plane for some of the first passes.  When i have the whole face down to an even plane, i switch to either my smoother hand plane, jack plane or maybe my scraper plane, or even my RO 150, depending on how close the work ended up with the power planer. It doesn't take much to get rid of the ridges i have made with the power planer.

It took a lot more practice with the power planer than with the hand planes; but it sure is faster.
Tinker
Wayne H. Tinker