Hornbeam me up! Or the Adventures of a Festoolian.

festoller

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May 2, 2009
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I thought my ?Hornbeam? (Carpinus Betulus) experience is worth sharing. Please feel free to comment!

I recently cleaned my cellar and of course there was only one logical conclusion what to do with the free space, a new and improoved workshop!

After installing several shelves and a proper panel storage system, the old bench had to make room for a new MFT including the TS 55.

At the same time I purchased a small batch of European Hornbeam (Carpinus Betulus) which seamed to be a great idea, since the material looks really special almost white. I decided that this hornbeam should be turned into my first furniture, a small table.

From my little experience I would guess the Hornbeam was right from the bend saw maybe a little planed (about 1 inch thick , 15 to 20 inch long and 5 inch wide).
Since it?s a small shop there?s no room for a planer or thicknesser (although I really start to think I need one), but thanks to this forum I learned there?s almost nothing you can?t do with your TS 55. Additionally  I learned form Fine Woodworking  that 50 % of all students that learned to hand plane, rather used a sander such as the ETS 150.

I started to cut the hornbeam and with the T48 saw blade I had no problem cutting clean edges. Of course it took some time and adjusting (thanks to all the great manuals that are listed here) until a proper joining situation was reached. Together with the MFT some bench dogs, some Festool clamps and the Veritas Wonder Pups this part of the project was rather easy. Unfortunately the outcome was rather ?unflat? and had a certain touch to some wooden stairs. Nothing a good rub with the ETS 150 and some 80 paper can?t fix.

At this point I should have started to become suspicious, because the time an equipment spend on this process was quite extreme. Anyway the three boards finally were completed and ready to be assembled. The idea was to mount three equal boards together so you can either use the table in a ?U? or ?C? position.
Unfortunately at this point I got too far into the dovetail jig issue and though getting a Leigh D4R would be the one solution for this table.

After several tests with different materials I felt prepared to introduce the hornbeam to my new friend Leigh.

When I started to prepare the boards (cutting same sized panels) the brand new TS 55 with the T48 blade started to scream awfully and the cuts showed burn marks on the inside (left side).  Not to mention the physical power I had to put in to finish the cut. This means after approximately 30 hornbeam cuts (probably 40 feet, one inch thick) the blade gave in.

Fortunately I used a small piece of hornbeam to get the proper setting with the Leigh, for the planned half blind dovetails. Using the 80 Leigh bit that came with the jig in my OF 1010 I started with the first two boards and of course adjustments had to be made. At the third board the OF 1010 started screaming followed by burn marks and increasing pressure to finish the dovetail. All together it took me 7 dovetails (probably 1 inch wide) to almost kill the bit.

In the end I decided to make a clean 45? cut instead of dovetails to assemble the table, but it still amazes me how I could pick one of the hardest available woods for my first furniture project while professionals use this material to manufacture rather small hand tools.

Although the table looks quite nice and of course has a really special value!
 
Where I work part time we have a piece of what I think is ipe just sitting around it is not very large but extremely heavy.  I also have to metal ends to make a bench seat.  Well you would think that was a perfect combination but I just can not bring myself to buy this wood just for the reasons you stated above with the hornbeam.  At least it was just disposables that got ruined on your first project and that way it is much easier to live with.  By the way you could probably have the blade sharpened but I imagine the router bits a probably shot but it might be worth asking.

JJ
 
Sorry! I'll post some pictures of the table and lumber later.

I have cleaned the blade and at least by hand it still feels quite sharp. I'll cut some oher lumber tomorrow and see how that goes. I still can't get over the fact that the T48 blade didn't last longer.

I think the rest of the lumber can be converted in some nice jigs or other useful stuff, if only I could find blades and bits that last a little longer.
 
I had a little chat with one of the Festool Customer Service guys, about my Hornbeam experience.

He explained what the more professional user probably already knew, the proper choice of blade. Unfortunately the T48 (# 491952) is not ?rough? enough for this kind of material and therefore gave in. The 48 will produce a great clean cut, but is supposed to be used on softer material.

He recommended the T28 (# 487377) for this kind of lumber, but also mentioned the 48 might still work properly after cleaning, just not in this lumber. I can?t confirm that since I need to test it first. The Panther is of course the best choice for hard lumber, but it will not produce a clean cut such as the 28 and 48.

I am just glad I?ve already bought a new 48!

As much as I appreciate the competent Festool Customer Service, they should probably put a few more details into the product description. It might help the more novice customer to prevent such mistakes.
 
festoller said:
I had a little chat with one of the Festool Customer Service guys, about my Hornbeam experience.

---- Snip ____

As much as I appreciate the competent Festool Customer Service, they should probably put a few more details into the product description. It might help the more novice customer to prevent such mistakes.

Although your suggestion seem eminently reasonable the problem is how much education should be included. You have found one situation there are many more.

With a tool like the Domino some is needed and most users will be happy to pay for it. However for a circular saw I, and many other users, would not need or want to pay for the kind of information you suggest.
 
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