MOTM April 2017 - Contest Thread

Ben_Misegades

Welcome to the first round of the public Model of the Month contest!

This will be our first run at reviving the Model of the Week contest that died out some time last year. As this is no longer organized by Onshape directly (for the time being) the format is changed slightly. The main difference is that this will be held on a monthly rather than weekly basis.

If possible, I would ask that this thread be made a sticky so that it can be found easily.

How to participate:

• The contest is open to any user, your level of subscription does not matter
• The age of the file does not matter. You are free to enter any existing project you may have, there is no need to create something specifically for the contest.
• Despite the name of the contest being "model" of the month, things like Feature Scripts are also acceptable entries.
• Simply importing a model from another source into Onshape does not count! It must be clearly evident that Onshape was used to create or manipulate the document that you are entering!
• To enter, reply in this thread. Your post should include the following:

1. A link to the document you wish to enter. Be sure to make your document public!
2. A screenshot of the document. Please only one screenshot per entry.
3. A brief description of the project to help other users understand what complexities or difficulties may have been involved.

Voting:

• All users, whether you enter the contest yourself or not, may vote on submissions.
• Use the built-in forum features to "Vote Up" entries of your choosing. Please refrain from using "Vote Down" as it goes against the spirit of the contest.
• At the end of the month the entry (or entries) with the highest number of "upvotes" will be declared winner
• A new thread will be created eventually to archive monthly winners

Discussion:

• Please only post in this thread with entries! For any feedback, questions, or discussion, please post in this thread:

https://forum.onshape.com/discussion/6155/motm-april-2017-discussion-thread/p1?new=1

Prizes:

• Since this contest is not organized by Onshape, no forum badges will be given out, sorry.
• An Amazon gift card of a yet-to-be-determined value will be awarded to the winner.
• Bragging rights 

This contest is open for entries immediately, and will remain open until April 29th. Voting on entries may begin immediately, as well. The winner will be announced on the 30th, so be sure to get all of your entries and votes in before then!

3dcad

Simplified model of Scissor lift
https://cad.onshape.com/documents/ea95650e1f3142839b5d746d/w/3e408a99028f4d58811ac92d/e/0daa8caceab042738b2ff576



I don't have too much time to model outside work but while we had one on construction site I just had to try it out. I hope I get it finished someday.

I was thinking of improvement to existing 'Haulottes' so that rear ladder would automatically go down when in bottom position to help a person climb in and go up when cage is lifted to prevent falling.

Grab the upper cage and move it, limits are somewhat realistic.

john_mcclary

This was one of the first handful of test projects I made while learning OnShape.

I was using these very calipers to measure crap on my desk, when I pulled out my cheap tape measure and eye-balled every nook and cranny I could find on my precision measuring tool and drew it! But I think it turned out OK.

I was also testing the accuracy of OnShape's Rack and Pinion mates, Which as you can play around with in the assembly, It is spot on

https://cad.onshape.com/documents/0ec1858d9f8a78e1523f188b/w/dd59f60e86056dc714d5931c/e/117f222d1b5418825925534c

michał_1

Just a surfacing with current state of tools:


https://cad.onshape.com/documents/58d0eadf203be30fcdfff2c5/w/9436f156b05d9bd16bf49990/e/a923ab2cea1168d91bea12c5

brucebartlett

Hydraulic Cylinder, (PRC Brand). Uses variables for easy copy and change to different sizes. The Document also includes assemblies with mate limits on the stroke and mate connectors for easy insert and mating in other docs. 



https://cad.onshape.com/documents/bde3125c59c69737926d0bf8/w/aa8c6ab1c8624805b0f47989/e/2353b4ef8b6528f467c60888

bryan_lagrange

Wall mounted bottle opener with catch box:
https://cad.onshape.com/documents/1dcf869c70cae91f4b82e5ef/w/5dd6ccfaea25d9e5e24c5614/e/f2b12a8e1d3bb4c6c7070197

I wanted to try the sheet metal capabilities of Onshape so I created this model. The addition of sheet metal to Onshape is getting me one step closer to making the full switch to Onshape as the primary CAD software.

Mount the bottle opener to any surface, then hang the catch box to catch bottle caps.

emagdalenaC2i

OpenROV - The Open Source Underwater Robot

https://cad.onshape.com/documents/58e92f1a1d9a5d106f8d77bd/w/8399ead09664890d71e5e4fc/e/2c3bbb64fc39004ccd529206

This is an example document we use in our trainings of Onshape.
It is a old version, previous to sheet metal features.

You can see more detail about OpenROV here https://www.openrov.com

emagdalenaC2i

FeatureScript - Split in pie

https://cad.onshape.com/documents/8ac71c8d3092082139accc6f/w/92ff1ec71e2814c78d4f9acc/e/779a7aaf7fd93f515e6870a2

This FeatureScript let you split one or more parts in a FeatureStudio like a pie in the number of sections you define.

leon_poot

Non-Uniform Scale Feature

https://cad.onshape.com/documents/c3f3651d28491d28eefba7d3/v/167ba220d329f5bec671e716/e/dbc28ecb5a20b4bfa14fc748

I've written a little feature in FeatureScript capable of scaling in any chosen direction or set of directions.
The scaling option in Part Studio only does the first of four option listed below.

Choice between:

1. Uniform scaling; in the standard coordinate system
2. Non-uniform scaling; in the standard coordinate system
3. Scaling in one direction; one direction query, one scale factor query
4. Scaling in three directions; one or two direction queries (second will default perpendicular to the first until queried),
   the third direction will be perpendicular to both, one scale factor query for each direction

Options:

• Keep Tools Boolean for keeping the original bodies and scaling a copy
• Use Entity Centre Boolean for using the calculated centroid (centre of surrounding box) or
• Feature Type choice between Feature or Entity queries. Not entirely sure whether Feature Scale works as it should.
  So far it seems to work with bodies, faces, sketches, wires, and points (for the latter three you'll need to specify a reference point)

Screenshot showing the four main options on spheres (all identical to begin with):



It's far from perfect, the script has quite some clutter, i'm sure I have taken some detours and is has too many if/else statements.
But if you find it useful: have a copy, or import it to your collection of FS features. If you have any input for me, or tips and tricks on how to improve; all the better, do let me know! I shameless copy-pasted this from the thread where I linked it yesterday...
https://forum.onshape.com/discussion/comment/27675

Ben_Misegades

Just a reminder to all of those who still wish to participate, you have until the 29th of this month to submit entries!

Tony_C_

john_mcclary said:

This was one of the first handful of test projects I made while learning OnShape.

I was using these very calipers to measure crap on my desk, when I pulled out my cheap tape measure and eye-balled every nook and cranny I could find on my precision measuring tool and drew it! But I think it turned out OK.

I was also testing the accuracy of OnShape's Rack and Pinion mates, Which as you can play around with in the assembly, It is spot on

https://cad.onshape.com/documents/0ec1858d9f8a78e1523f188b/w/dd59f60e86056dc714d5931c/e/117f222d1b5418825925534c

For that to be truly accurate "0" shouldn't be at the top......

It typically moves after you've dropped it on the ground a few times.

konstantin_shiriazdanov

Roller transmission U=14. Outer tooth profile generated by custom FS
https://cad.onshape.com/documents/5b127d8c24b2f4fe30160ab3/w/a4007bd59e449c044bc650ae/e/d39c27f81560c534939f963f
https://youtu.be/otXnIIQ59j4
Cyclo transmission U=24, Profile of inner gears generated by Syncro Rotator FS
https://cad.onshape.com/documents/58f8f766f58534111bfaba6f/w/42f84fa1780fe6761933f31b/e/3667e83c7c645de3f5e39ad3
https://youtu.be/FD2PI0iHW6c

Rootentity

Open Source Subwoofer Basket


https://cad.onshape.com/documents/26b95413e3025f9093485d1f/w/48c8c36ac492660ad1e9eddd/e/ca9eef69289a807704213ccc

This is a long throw overhung subwoofer basket design.
Most speaker and specifically subwoofer basket designs are trademarked, and patented.  It is not a very progressive industry. This basket design is free to use, and can be made from metal plate, without having to pay for expensive tooling for a cast basket design.

Ben_Misegades

Was a rough weekend, sorry for not making the winning announcement yesterday. Anyhow.

@john_mcclary is the winner of the first MOTM contest with his Caliper model, congratulations!

Thank you to all participants for your submissions, votes, and feedback. Please have a look at the discussion thread for feedback related to the contest.

https://forum.onshape.com/discussion/6155/motm-april-2017-discussion-thread#latest

john_mcclary

Thanks everyone!

For my victory lap: It was mentioned in another forum post (somewhere). That I should make this digital. Right after I sketched up a odometer style counter.
I was tempted to post it soon after, but didn't want to "cheat" by submitting another right after.

Have a look, and let me know what you think.

Hint: read each number only after the horizontal line on the number crosses over or touches the horizontal bar on the case.
https://cad.onshape.com/documents/f0d2134a15b6f332a538e198/w/33ee9a4d084fbde3c0a78123/e/07cd8da174f57b6adb22a97d

3dcad

@john_mcclary
Did you forget to make it public?

john_mcclary

yes did try now

3dcad

@john_mcclary
I don't see any use for that model but I think it's purely awesome example of what Onshape can do. Nice work with rack&pinion mates and great idea to replicate digital caliper. You don't see these odometers too much these days, I still remember how nice it felt to see all those 9999's slowly turning into zeros in old mopeds / motorcycles / cars
Yet that odometer style is still accurate and cheap way to show adjustment value of screw type movement.