1 Topic by mark.burhop

  • mark.burhop
  • mark.burhop
  • Member
  • Offline
  • From: Huntsville, AL
  • Registered: 2013-05-01
  • Posts: 205

Topic: Gravity Screw

I was trying to see how small I can get working threads and accidentally made a toy (my wife's preschoolers love it). A friend printed it out on his cube and did a video too.  I thought I'd share:


You can get the STL file here: https://grabcad.com/library/gravity-screw-1

SD2, glass bed, MK5 setup with E3D lite extruder
NX and Solid Edge CAD user
PI, Galileo, and arduino hacker
Code Monkey and Twitter user @burhop

mark.burhop's Website

2 Reply by DesignerFred

  • DesignerFred
  • DesignerFred
  • Member
  • Offline
  • From: France
  • Registered: 2013-03-19
  • Posts: 264

Re: Gravity Screw

Nice, I like it... smile

www.designerfred.fr      before: Solidoodle 2 + E3D v6 now: MeCreator II and OLO 3D

DesignerFred's Website

3 Reply by Tomek

  • Tomek
  • Member
  • Offline
  • Registered: 2012-10-01
  • Posts: 710

Re: Gravity Screw

very cool

4 Reply by lawsy

  • lawsy
  • Moderator
  • Offline
  • Registered: 2012-08-13
  • Posts: 1,220

Re: Gravity Screw

This looks like a perfect test for my threadless ball screw.

Cool design, thanks.

lawsy's Website

5 Reply by sgmorton

  • sgmorton
  • Member
  • Offline
  • Registered: 2013-10-10
  • Posts: 10

Re: Gravity Screw

Made one... my wife won't put it down.

6 Reply by mark.burhop (edited by mark.burhop 2013-11-20 18:13:41)

  • mark.burhop
  • mark.burhop
  • Member
  • Offline
  • From: Huntsville, AL
  • Registered: 2013-05-01
  • Posts: 205

Re: Gravity Screw

sgmorton wrote:

Made one... my wife won't put it down.

Tell her you would like to make more but are running low on filament wink  My wife went to MakerGeeks and ordered me another roll.

SD2, glass bed, MK5 setup with E3D lite extruder
NX and Solid Edge CAD user
PI, Galileo, and arduino hacker
Code Monkey and Twitter user @burhop

mark.burhop's Website

7 Reply by lawsy

  • lawsy
  • Moderator
  • Offline
  • Registered: 2012-08-13
  • Posts: 1,220

Re: Gravity Screw

Printed one, doesn't spin freely enough to drop like in the video but still a cool toy nonetheless.

lawsy's Website

8 Reply by mark.burhop (edited by mark.burhop 2013-11-25 01:34:27)

  • mark.burhop
  • mark.burhop
  • Member
  • Offline
  • From: Huntsville, AL
  • Registered: 2013-05-01
  • Posts: 205

Re: Gravity Screw

lawsy wrote:

Printed one, doesn't spin freely enough to drop like in the video but still a cool toy nonetheless.

Maybe you need to tune your printer.  There are some experts here that can help you with that (all, yes I know Lawsy rules on getting the max from your SD lol ).

Seriously, while doing some tests on how to assemble 3D printed parts I did an extra big "gravity Screw"

https://vine.co/v/htEEuaOMeWV

SD2, glass bed, MK5 setup with E3D lite extruder
NX and Solid Edge CAD user
PI, Galileo, and arduino hacker
Code Monkey and Twitter user @burhop

mark.burhop's Website

9 Reply by Stevos758

  • Stevos758
  • Member
  • Offline
  • Registered: 2013-04-22
  • Posts: 502

Re: Gravity Screw

http://i.imgur.com/qpFPPHu.jpg

Printed in T-glase!

Your right this entertains the wife!

Website - http://rippsgaragetech.com/
Facebook - https://www.facebook.com/pages/Ripps-Ga … 3131469591
E3D V6 Bulldog XL mounts! http://www.filastruder.com/products/e3dv6-bulldog-mount

10 Reply by chuddly

  • chuddly
  • Member
  • Offline
  • Registered: 2013-07-24
  • Posts: 70

Re: Gravity Screw

I printed one a week or so ago ...It worked GREAT!  Printed great and rolls up and down just like it should.

11 Reply by adam.scho

  • adam.scho
  • Member
  • Offline
  • Registered: 2013-06-10
  • Posts: 42

Re: Gravity Screw

will be printing as soon as i get my printer

12 Reply by satman49

  • satman49
  • Member
  • Offline
  • From: virginia
  • Registered: 2012-12-28
  • Posts: 867

Re: Gravity Screw

I am attempting this one  http://www.thingiverse.com/thing:200859 . I tied scaling down the original version, but the nut just welded to the screw.

SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.

13 Reply by satman49

  • satman49
  • Member
  • Offline
  • From: virginia
  • Registered: 2012-12-28
  • Posts: 867

Re: Gravity Screw

update: Just can't get it  to turn. Anybody have a secret to get it to print properly?

SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.

14 Reply by COASTER19

  • COASTER19
  • COASTER19
  • Member
  • Offline
  • From: Kansas
  • Registered: 2013-03-08
  • Posts: 235

Re: Gravity Screw

Just a guess here: Did you scale it down at all?  The bolt would have more mass and small artifacts from printing would be less important due to the larger size.  (and of course calibrate wall thickness if you haven't yet!)