My balsa wood is too hard!!! - RCCanada - Canada Radio Controlled Hobby Forum
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Old 03-22-2005, 01:25 AM   #1
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My balsa wood is too hard!!!

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I've been building my first RC model, a Sig LT-40 for a few days now...things were going nicely and I was having tons of fun but now I've come to a speed bump.
I'm making the slots for the Sig Easy Hinges on the wing. Now the stabilizer went great, I was a little nervous...first time doing this and I really wanted to get them right. Well they went great! So onto the slots on the wing trailing edge with confidence and.....I've come to an almost grinding halt!! The wood on the trailing edge is way harder than the stabilizer wood. I just spent 2 hours of valuable and hard to come by building time and I have two slots cut!! The Exacto blade is no match for this tough wood, I even tried a Dremel wheel but it doesn't go deep enough and if I put on a bigger wheel I'm afraid the slot will be too wide and long. Does anyone have any tips, suggestions to do this job a little faster?? Thanks for any help.
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Old 03-22-2005, 04:09 AM   #2
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Check and see if any of your flying friends have what is called a slot machine. It will make short work of the slots and they will be perfect as well. If you plan on doing a lot of building it might be a worthwhile investment. $35.00 at Great Hobbies

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Old 03-22-2005, 07:00 AM   #3
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I'll second the slot machine. Just don't try it on anything harder than balsa ... the little plastic cam will be toast.
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Old 03-22-2005, 05:12 PM   #4
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Hi Kelona Fred
This is not ment to sound sarcastic, but are you sure the wood you used for the trailing edge is balsa?
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Old 03-22-2005, 07:55 PM   #5
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Thanks for the help guys, I stoped at my local hobby shop on the way home and picked up a set of Dubro Slotter Tools. They ddn't have the electric one but I tried the tools when I got home and they work much better than just an Exacto knife. Thanks again.
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Old 03-22-2005, 09:04 PM   #6
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You could also try some robart hinges they a little beefy for a trainer but you could use the small ones they're easier that slot style hinges IMO

P.S. I learned on an LT 40 you'll learn quick on that plane it's a fine trainer

Good luck
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Old 05-30-2005, 03:05 AM   #7
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I have a slot machine and it makes cutting slots a lot easier, but I rarely use it since I started using Robart hinges. Just drill a hole and glue it in.
1/2A all the way!
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Old 12-16-2009, 11:51 PM   #8
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Re: My balsa wood is too hard!!!

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