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Sep 01, 2011
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#1 posted 09-02-2011 05:29 AM
Very interesting project. I think my kids would like hanging out in your shop with some of the gadgets you make. Are you familiar with a gentleman by the name of Matthias Wandel? He has a web site called “An Engineers Approach to Woodworking” the link is www.woodgears.ca Notice it is not a com but a ca, as he is from Canada. He has allot of interesting contraptions like this and fun stuff. He also makes his own wood working machinery and publishes a new article every Monday. Right now he is demonstrating the build process of a 14” Band saw made all from wood. This is his 3rd Band saw build, his second band saw, a 16”, out performed the commercially made saw he had in his shop. I dont know him personally or advertise for him LOL just thought you might be interested in his site.
-- Michael Mills, North Carolina, http://www.scicaskets.com
2072 posts in 1392 days
#2 posted 09-02-2011 05:41 AM
I saw this before. Nice job.
I wish that a blog could be turned into a project with the click of a button (upon completion).
-- If you're going to stir the pot, think BIG spoon or SMALL boat paddle. David Grimes, Georgia
15089 posts in 2429 days
#3 posted 09-02-2011 05:46 AM
Nice work!! My grandsons need some of those ;-))
-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence
10850 posts in 1868 days
#4 posted 09-02-2011 06:20 AM
nice one william :-)
973 posts in 1946 days
#5 posted 09-02-2011 06:21 AM
We can test it on my Subaru soon ….....
-- Practice does not make perfect. Only perfect practice makes perfect. Vince Lombardi
#6 posted 09-02-2011 06:22 AM
Thanks ya’ll. Michael1, I have Mr. Wandel’s site saved in my favorites. I go there every week to see what he has come up with. I’ve been looking locally for some spring steele for the marble crossbow he has on there. The potato guns have also caught my interest by the way.
1735 posts in 1445 days
#7 posted 09-02-2011 09:26 AM
That’s cool William. Do you have a video of it in action? Can you sling tomatoes with it?
-- Darrell, making more sawdust than I know what to do with
1820 posts in 1990 days
#8 posted 09-02-2011 01:22 PM
Kids love projects like this, but grownups go all out!
Here’s what you get when rednecks and technology meet. You won’t believe how far they can toss an 8 lb pumpkin.
-- Hal, Tennessee http://www.first285.com
#9 posted 09-02-2011 01:27 PM
I do have video, but hard as I try, I just can’t get videos up on the internet. I don’t know if it’s a format thing or what and have basically given up on the idea. I don’t do many videos anyway, so it’s not a priority to me. I’m sorry.You’re welcome to come on down to my place though and I’ll show it to you in action, in person.As for the tomatoes, I haven’t tried. If you find some the right size and roundness though, I’m sure they’ work. Anything round and about the size of a tennis ball works fine. The only issue variances in weight causes is that on different weights, you have to play with the pin on the end of the throwing arm. Different angles causes the sling to release at different arcs in the swing. Depending on the weight of your projectile, you sometimes have to play with the angle for maximum distance. So that would be the issue with tomatoes. They’d have to be round, and uniform in size and weight. Another popular item to launch with it around my house is water balloons.
#10 posted 09-02-2011 01:32 PM
HalDougherty, Yes, I would believe the distance. These are amazing machines. You can lauch basically ANYTHING, as long as you have the size, long enough swing arm, and enough couterweight. I first became interested in trebuchets after watching a television show on the Discovery Channel. It was an event out west similar to the one you linked to above. They were lauching appliances over a thousand yards. That’s right, we’re talking refridgerators, washers and driers. The grand finale though was the icing on the cake. The pulled this beheamoth out using two huge tractors. It was construccted of 12” I-beams and stood as tall as a three story building. Then they lauched a 1962 Volkswagon Bug with it.I think that was the most torn I have ever been emotionally. One one hand I thought it was the coolest thing I’d ever seen.On the other hand I wanted to stomp their @$$ for destroying that car.
204 posts in 1341 days
#11 posted 09-02-2011 08:29 PM
About the most fun you can have is besieging a castle built of wood blocks with one of these…Man the battlements!
-- I'm not as good as I once was, but I'm as good once as I ever was.
#12 posted 09-02-2011 09:07 PM
The comment about the marble crossbow caught my attention. I took a peak. I got a kick out of him saying he wouldn’t post plans because anyone who couldn’t figure out how to make one probably shouldn’t be playing with one ;-))
Maybe a castle made of small stones would be a better test ;-)
#13 posted 09-03-2011 12:59 AM
I had noticed that statement with a smile too TopSurvivor. I think he’s right though. Since he doesn not offer plans on some of his creations, then it would be hard to hold him liable if someone (like me) decides to build something similar. Oh, and my daughter’s boyfriend just informed me today that he knows where he can get me some leaf springs off an old car, so the marble crossbow may be in line for a future project for me. While thinking of all this though, I told him to pick up the pair if he can (I hope he can actually get them). Another project I have in mind is a spring loaded catapult (not sure what they’re called). Could you imagine the force behind a leaf spring being pulled back with a chain hoist and released with a home made release mechanism? I’d design it so I could stand WAY back, of course.
#14 posted 09-03-2011 01:08 AM
Leaf springs off an old car might be a bit more than you want for a crossbow. Maybe something like a catapult for small logs ;-))
4544 posts in 1756 days
#15 posted 09-05-2011 04:02 AM
These are just awesome things to build, my kids wanted one and after watching the show referenced above I ordered some plan. You did a wonderful job. Glad to hear the kids like it so much. Tennis balls was a very wise choice.
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