GrabCAD 模型信息
Leonardo Da Vinci Catapult · 模型 67700
This is my entry for the "Da Vinci Gear Challenge". Link to the Creation: http://members.iinet.net.au/~rmine/Leonardo.html Printing method used: FDM 3D Printer: Utlimaker 2 Material: M-ABS & Ninjaflex 3mm Nozzle diameter: 0,4mm Layer height: 0,2mm Print time: ~45 hours Post-processing: - some pieces don't need support for print, others need. - no tools or glue needed because of the "carpentery" joints. - I have chosen this Catapult, because I did exactly the same a months weeks ago, but it was not 3D Printable a this time. So I changed everything. - First I scalled it down to 7 meters to 500mm. But I've tried to keep the proportion and make it sturdy. - Then all the joints were made so that the whole structure is sturdy. I asked my father for some Carpentery joints. - Naturally I have let some tolerances for the joints, for that I used the equation system in Solidworks, so that it is easily changeable. Now the tolerance is 0,4mm. Is it Printable ? - I've printed the whole Catapult with my 3D Printer. For that, I used M-ABS, I bought some recently. And I was impressed how sturdy it is ! -So all parts can be easily printed with an FDM printer. Update 14/05: Last Update, the Catapulte works ! To prove it, a little video of the catapult shooting a 9.5 mm ABS ball. It goes quite far I think ! Update 08/05: As I said yesterday, I've printed the Ninjaflex core of the upper arm (Part T2). But it doesn't work because of the shape of T2, I have to cut a slide away (see picture). I will print the newer part, and see if it works. I've also updated the Zip files of the functionnal catapult. Update 07/05: I've added the Ladder that Leonardo DaVinci made to load the catapult with projectiles. I will also print the ninjaflex inlay and the ladder tomorrow (08/05). Update 01/05: I've printed the arm, and winch. And it works !! The catapult shoots litlle 9.5mm balls 2-3 meters away ! But the arm is not finished, I've just printed the outer part out of ABS, I will print Wednesday the Ninjaflex part (inner core). Update 30/04: I did a 6th version of part T2, but a special one.. the outside of Part T2 will be printed in ABS (1.5 mm widht) and the inner core in Ninjaflex ! I think this is gonna be the best solution, so that the Catapult is functionnal. The part can be seen in the folder "Part T_Simulation" - " Part T Flexible Core". Update 27/04: Little update, I did 5 different versions of part T2: I did a test with 10N, 20N, and some of them 50N to see if they w...
- 格式
- SOLIDWORKS、Rendering、STEP / IGES、STL、SOLIDWORKS、Other
- 分类
- 3D printing、Military、Toys
- 标签
- davincigear、catapult、challenge、leonardo、vinci、da、gear
- 数据更新
- 2026-10-23T06:15:27Z
