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3D-printable Davinci catapult gift card

the perfect gift to your family and friends and all you need is a 3D-printer (and some wire ;-)

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Because a lot of people liked my previous gift card (Fully 3D-printable wind-up car gift card: https://www.thingiverse.com/thing:3308710) and asked if I could create another version of it, I decided to make this Leonardo Davinci inspired catapult gift card. The whole card can be 3D-printed in one go, you don't need any extra parts except for some wire. The card can be printed without support and the print time is about 3 hours with a 0.2mm layer height. The card can be printed using regular PLA. The whole thing is designed to be able to snap fit together so there's no glue necessary. I did a lot of test prints of different parts of the model until I got some consistent and good results. It is of course possible that depending on which printer you use the result may vary.

Because a lot of people liked my previous gift card (Fully 3D-printable wind-up car gift card: https://www.thingiverse.com/thing:3308710) and asked if I could create another version of it, I decided to make this Leonardo Davinci inspired catapult gift card. The whole card can be 3D-printed in one go, you don't need any extra parts except for some wire. The card can be printed without support and the print time is about 3 hours with a 0.2mm layer height. The card can be printed using regular PLA. The whole thing is designed to be able to snap fit together so there's no glue necessary. I did a lot of test prints of different parts of the model until I got some consistent and good results. It is of course possible that depending on which printer you use the result may vary. You can always let me know in the comments which parts work for you and which don't so I can create a second version of the model. I added all the parts seperately to for the people who just want to print the catapult and do not have the intend to give the card as a present.

I also created some instructions to add to the experience of building a model kit. The pdf file can be found in the file section.

Video can be found here: 

Adobe Portable Document Format - 697.24 kB - 12/25/2019 at 22:35

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    Step by step instructions are provided in pdf format

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Brandon Curnutte wrote 01/08/2020 at 17:08 point

I miss my printer and making cool stuff like this!

  Are you sure? yes | no

Vsevolod wrote 12/27/2019 at 14:27 point

How do you even print this in 3 hours? My print took 4.5 hours and I cranked up the speed on my printer so much that all corners are blobbed beyond recognition

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Brian Brocken wrote 01/03/2020 at 00:09 point

Hello Vsevolod, I checked again for you and yes the print time with my settings and printer is 3 hours 4 minutes and 31 seconds, but the printer always finishes in under 3 hours. My settings are: 

Speeds: 

-Print speed: 40mm/s
-Outer perimeter: 30mm/s
-Infill speed: 50mm/s

Layerheight: 0.2mm

infill: 25 percent

Nozzle diameter: 0.4mm

No supports, no rafts, no brims.

Do your settings match my settings above?

  Are you sure? yes | no

Brian Brocken wrote 01/03/2020 at 00:11 point

And what printer do you have?

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Vsevolod wrote 01/09/2020 at 06:09 point

My Cura settings:

-Wall speed: 60 mm/s

-Infill speed: 120 mm/s

-First layer speed: 20 mm/s

-Slower layers: 2

Infill: 20% gyroid

Layer height: 0.2 mm

Nozzle diameter: 0.4 mm

4 perimeters, 8 skin layers, no supports, brims or rafts

My printer is Ender 3 Pro, upgraded with SKR 1.3 running Marlin 2.0, dual Z axis with belt linkage and piezo Z probe. Since then I have also upgraded print surface to PP sheet and changed firmware to Klipper

  Are you sure? yes | no

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