Hi There,

My name is Jeroen and I live in Holland. I am a low profile hobbyist mainly building models or just things from wood. Mostly I use just a picture to build the model by creating my own drawings.

This year after a family break in France I have seen a huge Trebuchet http://en.wikipedia.org/wiki/Trebuchet I was impressed by it's power and simplicity. After discussing with my kids to build one (small scale) together I started to search the web. I ended on wikipedia where you can find a picture of an impressive model of a trebuchet and decided to build one with my kids.

I found out that this model is also available to purchase on line (179$). However my challenge has always been to build something on my own. I used the picture above to create the building instructions and set the dimensions of the model since the building plans and instructions of this model can not be found on the internet.

To build this model I used only wooden strips 12mmx12mm and round wood of 6mm, thin rope and glue. The material costs for this model will en up around 25$. Next to this I decided to build this one without nails or screws. So everything interlocks and was attached by wooden pins (and some glue).

Tools: Sander, multi tool, vertical dril, battery screwdriver and some general small tools.

I will try to provide everyone with all the tools to create one on your own. Any tips, comments or requests are welcome since this is the first time I use a Blog, thanks and have fun.

Step 1: Trebuchet Base Plate

The Trebuchet Base plate:

Well the thing is,... I decided to create a blog on this Trebuchet when I was already done with the base plate. I will try to explain as much as possible. I created a basic plan for this specific item.

Since all corners are exactly 90 degrees this item is rather easy to make. No nails were used and all pieces are connected by interlocking connections fixed with a wooden pin.

Since this piece is was already created the moment I started the blog I am not able to show you exactly how I have done this in this specific item. However I am able to show based on other pieces I have created for this model showing the same technique but on an other part.

How to create a interlock connection: So keep in mind that the pieces used are different then the base plate, however the technique is the same. In case you would like to receive detailed photo's or if you have a question, just let me know.

Always cut both pieces you want to connect exactly halfway. Once done both pieces, it will be a perfect fit.

I use a screw bench to hold the wood in the correct depth. This way I can perfectly chisel away the wood without taking off to much.

Once the pieces have been cut you are ready to create the connection. First make some wooden pins. I use roundwood of 6 mm in diameter. To drill the hole I use a wood-drill of 5.5 mm. To avoid any cracks in the wood just make a subtile point at the end by using a sander. Then fix the pieces and drill a whole to both pieces. When the hole is drilled apply some glue, put in the wooden pin and use a hammer to gently force the pin in.

The connection has then been made and should look something like above. Then you use a fine saw to cut off the pins and use the sander to smoothen the surface. If done correctly the baseplate should be similar as the following detailed pictures.

THe base plate is then finished. Since I would like to create this model as authentic as possible I have used a mini power tool to batter the wood so it looks like real trees has been used (downscaled) to create the wooden pieces. Maybe a little bit overdone, however I think it will look great once finished.

Eventually this model will be painted with a dark transparent paint.

Again if you need more details, just let me know. Next step are the wheel supports.

<p>Hey, fantastic job recreating this. I scaled up your design to the size of a 1 x 2 (If I had scaled to a 2 x 4 it would had had dimensions of 12 to 13 ft!), but then I used 2 x 4's for construction because I figured the forces involved would increase exponentially and needed more support. It stands about 6.5 feet tall. It's very interesting to see the violent shaking of a dry fly compared to the nearly silent transfer when loaded with a projectile. Putting wheels on it also helps because it forces all motion into a linear direction. I had to fill in the final details with some imagination and research and I have yet to do a full test because it's still in my back yard, but it throws head sized water balloons about 50 yards with barely any counterweight filler. It hits like a line backer, it knocked my cousin off his feet at 50 yards. I'm going to put a trash bag in the bucket, fill it with sand, and water it down for throwing some rocks and maybe a watermelon when I take it to a field. I have some videos i'll try to upload.</p>
<p>Hi There, It has been a while but I am back on Instructables. I just wanted to let you know that I love your model. I honoured that you have chosen to build my model SIZE XXXL. Just be careful with it, Looks like it can do quite some damage :-). Cheers J</p>
<p>Here is my model before finishing</p>
<p>Hi There, It has been a while but I am back on Instructables. I just wanted to let you know that I love your model. I honoured that you have chosen to build my model. It really looks great, well done. Cheers J</p>
<p>Hi, Just visited Castelnaud in France and watched the trebuchet display - great!</p><p>Are steps 13 to 15 to follow later or am I missing something?</p><p>Regards Geoff Blackwell</p><p>gwsblackwell@tiscali.co.uk</p>
<p>Trying to make this for an engineering project. It would be greatly appreciated if you could please send a full copy of the plans to me. Thanks heaps.</p><p>My email is: <a href="mailto:benflood2000@gmail.com" rel="nofollow">benflood2000@gmail.com</a></p>
<p>Hi Jeoren! This is an amazing model that I wish to recreate, but you never finished the last couple of steps :(. Could you please send me your plans if you are not busy (if you still have them)? My email is acgurdian@ans.edu.ni</p><p>Thankyou!</p>
<p>So I am a Junior in High school, and taking Physics and we are making Trebuchet/Catapult for our Spring break....SO does this also work on big scale....my limits are not taller than 2 meter</p>
Jeroen, <br>Great model. I am also a modeler and couldn't help but start building my own based on your great details. I do however have a few questions. I'm not sure how the trigger or rigging to set the shot works. <br>If your interested I'd like to email you about the build
Hello Jeroen. Thank you for your great job. It is a pity, that it is not finished yet,however I'm close to first shot:) I have only one question. From pictures it looks that the arm is still connected by rope with wheels during releasing the mechanism. But I try it and it doesnt work because of big friction. Anybody who know what is right. Thank you for answeres. Jarda
<p>Hi jeroen. Great job. Good explanation.... but.... when the complet steps for finishing the model...? thanks.</p>
Wonderful plans! When are you going to finish this post?
<p>Thank you Jeroen for the great plans, and detailed explanation.</p>
Hi, Thank you for your message. This is great. If you have the opportunity, then please keep me informed of your progress. If you need any additional pictures of the model or in case you have a question, please do not hesitate to contact me. Cheers, Jeroen (Amsterdam, The Netherlands)
<p>Looks awesome... going to try and see if I can convert your designs to work with the laser cutter/engraver at my school... Email is Tornman101 @ Gmail.com</p>
<p>Hey</p><p>I am going to build it with my class 5 grade. Could you send me the plans and instructions to build the trebuchet</p>
<p>Hi... still continue on this model?</p>
Hi, Yes,... it is finished. However I need to update the instructable.<br>Thanks for the reminder :-). In case you need anything, just let me know.<br><br>Cheers, J
<p>Great model, trying to make one myself for an engineering project, anyway to see the entire plans? I've been trying to recreate yours, but would really like to make it pretty much the same as yours looks. If it is possible please let me know, thanks.</p><p>zachharvin@gmail.com</p>
<p>This is awesome! Any chance we could get the last few bits??</p>
<p>awesome looking machine ,, any chance you would have complete plans , if so could yo plz e-mail them ?????? Thank You .</p>
<p>Hi Jeroen, me and my friends want to built a trebuchet for our Engineering project, could you please share your plans with us? Thanks ;)<br><br>engineeringtenc@gmail.com</p>
<p>Hi Jeroentrebuchet-- my son has to build a trebuchet for a class project. Yours looks awesome. I would love to have the plans.</p><p>tacmyers at gmail dot com</p>
<p>Awesome Job! Can I have the prints?</p><p>cabaguy24@gmail,com</p>
<p>hi i need you to send the prints to me thanks and please </p><p>tateburns39155@gmail.com</p>
<p>i am going to build this</p>
<p>Hallo Jeroen,</p><p>Mijn zoontje is helemaal wild van jou trebuchet en nu wil hij dat ik hem ga maken.</p><p>Mogen wij de laatste bouwinstructies van jou ontvangen. Mijn mail is marjon.strobbe@gmail.com</p>
<p>Hi Jeroen,</p><p>beautiful model. I am building a similar, only I do not have complete documentation. could you send it?</p><p>johnk@tiscali.cz</p>
ik ben van plan om deze na te maken hij is echt gaaf
<p>Jeroen,</p><p>I am interested in building a model myself. can you send me the instructions please. hchs14devils@hinsdale86.org</p>
<p>Jeroen,</p><p>Beautiful design. We are starting a 5th Grade science project and would be interested in your plans to see if we can build one. jeffkroner@sbcglobal.net</p>
<p>Great work dude. I'm building one of these but only using the images that i found on the internet, i'd love to have the plans. Will you upload the final steps? Or can you send them to my email (leonardobonde@gmail.com)?</p><p>Thanks</p>
<p>Hello Sir!That's great! I would like to build this one! Could you send me the plans of this trebuchet to imco13workshop@gmail.com ?</p><p>Thanks in advance!</p><p>Best regards,</p><p>Imco</p>
I like your work so much. could you please send me the rest of the instructions to my email adress? (rabigf@gmail.com) thanjs a lot!!
Hi! your trebuchet is amazing, I would really like to build it! <br>will you upload the final steps? i can't see them, from 8 to 15 (don't know if i'm having visualization problems, or if the last steps are still missing) <br>thank you for sharing your work!
Hi Laura, thanks for your kind message. Great to hear that you are going to build the model. I live in Amsterdam and it is quite cold right now (freezing temperatures). Therefore it is just to cold to work in my garage in the evening hours :-), later this week the temperature will go up again and I think I will start finalizing the model before the end of the week. It is not finished yet, it is work in progress. SO I will finish asap. <br>Hope this helps. Cheers. Jeroen
Hello Jerome. I am a high school student in the US who is currently taking an engineering class. Our first project is to make a model trebuchet. How light is your design and whats the biggest part that you use? Also, could you send me a sketch with dimesions of your trebuchet? Thank you very much.
Hi, Thanks for your message. I will be more than happy to help out. PLease send me your e-mail and will send you a download link with all info. PLease keep me informed on your progress. Great that someone will build this model as well. Thanks,
Finally I'm on Facebook :-)
The Facebook link is: https://www.facebook.com/jerry.model.blogs <br>
NIce model ! Can you power it with hamsters ? <br> <br>A pic of this model is on wiki under trebs.
Hamsters,... Hm That could work,.. :-) let's finish the project first. You are correct about the model on Wiki. That is what I meant about the costs for the model (175$). Therefore <br>I am building this model based on that picture and old drawings of the actual Trebuchet. <br>Much cheaper and cooler to build without building instructions, measurements and original precut parts.
Probly the way they did things back in the day. Tape measure??? PSHAW! <br>&quot;I have seene ye olde trebuchet in Paris. It was about 17 paces long by 5 of me tall...&quot; <br>&quot;Aye, but we don' have timbers thaht big. could we uuse smaller wones?&quot;
Thanks for your comment. It was not meant to be powered by hamsters, however,... :-) Yes indeed this version of a trebuchet is on Wiki. This is also a model that can be purchased. However this model costs about 179$. This is way to way to expensive so I decided to build this model from the picture.
Your model looks great! Have you finished it? I would love to see more of the process, thanks!
Just started with the project again. Hopefully you like it and follow the project.
I love the craftsmanship and complexity of your trebuchet. I would really love to tackle such a project but your pics confuse me a bit and there aren't any dimensions or measurements. Maybe I am missing something... at any rate, when it is finished you should take 360 degree pics and perhaps some key close-ups. Also may I suggest that you make some kind of drawings of each main components.I really would like to build this little beauty. If you can send me some dimensions I would be eternally grateful :)
Hi, Sorry for my late reply. Thanks for your positive feedback. I truly hope you will decide to build this model as well. I will be more than willing to answer any questions and help you out where needed. The building instructions and measurements you can find within the set of pictures of each step in the intructable of the trebuchet. Today I will upload step 7 including some current model dimensions, turnaround pictures and detailed pictures. IF you need any additional info, just let me know.
Hi, Thanks for the comments. I promise that I will finish the Trebuchet in the next few weeks and will work on it daily (in the lost hours). I received a remark to provide technical drawings. However I have already uploaded them and they are in the instruct able overview between the pictures. In case you would like to receive the full set in a download link, just let me know and I will forward you the link. Cheers, J <br>

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