Summary

Name: Transforming Pumpkin Spider
Brand: Thingiverse
Availability: InStock

Note- while this version will remain here for free download, I've made a new & greatly improved version which I heavily recommend:
https://cults3d.com/en/3d-model/game/pumpkin-spider-updated

Finished prints available on Etsy:
https://www.etsy.com/nz/listing/648503075/halloween-pumpkin-spider-transformer

For the outer pumpkin sculpt I used tone001's pumpkin, be sure to check him out:
https://www.thingiverse.com/thing:1836056

If you made it, don't forget to post the make! Seeing how prints turned out, and receiving feedback, is a great help for me.

Featured in:
https://blog.prusaprinters.org/halloween-3d-print-showcase_8998/
http://www.homecrux.com/3d-printed-halloween-pumpkin-spider-transformer/110041/
https://all3dp.com/3d-printed-halloween-pumpkin-spider-transformer/
https://howchoo.com/g/ngu3odnmmzc/top-halloween-things-to-3d-print
https://hackaday.com/2018/10/17/3d-printing-halloween-style/
https://smartie.store/10-ideas-what-to-3d-print-on-halloween/ https://makezine.com/2019/10/31/8-last-minute-3d-prints-to-spookify-your-halloween/pumpkinbot/
https://blog.adafruit.com/2018/10/11/halloween-pumpkin-spider-transformer-3dthursday-3dprinting/

Print Settings

Printer Brand:

Printer:

Up Mini

Rafts:

Yes

Supports:

Yes

Resolution:

0.15mm

Infill:

10%

Filament: ReelToReal ABS White

Notes:

Model units are in mm, don't accidentally print something 10x too big!

I've included chest-2parts.stl in case the chest piece breaks on your printer, just put the legs in the sockets and glue down the top.

If you choose to go the path of printing orangeparts.stl and blackparts.stl, you'll have to glue them together post-print.

The print in the photo is at 80% size.

Post-Printing

Assembly:

Once the print's finished, put some superglue on the base of the ball joint in the middle of the chest, to reinforce it. assemble by pushing the leg ball joints into the chest sockets. Depending on the printer, the tightness of assembly may vary, but due to the cyclic shape of the chest there shouldn't be any serious breakage. Once those are in, click the other end into the pumpkin slices, and you've got the legs! They should all be the same around the pumpkin, to get it to have the abdomen fold 2 legs around backwards.
The head is connected to the body with 2 the neck joints, move the head to the front for spider mode. For pumpkin mode, move it upwards, then move it down so it fits snugly in the middle.

For the print in the image, I made it in white ABS plastic, then smoothed it with acetone, and airbrushed the individual pieces.