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Re: Arc causing sketch to be overdefined - how?!?
@tom_auger
In the first GIF, notice the way YOU sketched the arc and circle. As I moved my finger DIAGONALLY, the two center points stayed aligned vertically. So even though I had suppressed inferencing, the two points still stayed aligned vertically
In the second GIF I did not bother to suppress inferencing.
The two points were aligned vertically, so all I had to do was punch in a vertical dimension — between the two points — of ZERO — in order to make the two points coincident.
Look at the latter part of the second GIF, where it shows the X, Y & Z coordinates for the centers of the arc and circle. Notice they are exactly the same
Re: Arc causing sketch to be overdefined - how?!?
@tom_auger - I think the thing to remember here is not that the geometry is invalid, rather as you say, its's overdefined. And because it's overdefined, the software throws an error.
The sketch solver has to solve a system of equations. So for example, we have equations:
x+1=2
y+x=5
x+2=3
We can easily figure out that x=1 and y=4. The third equation isn't incorrect, its just not needed (and the system of equations is over-defined).
Similarly, in your sketch, you could look at the one of the vertical edges. It's position (1.75 inches from the center of the large circle) is defined by the size of your construction circles and the sketch is happy. However, when you add the last arc and constrain the center of the arc on the horizontal line and tangent to either of the vertical lines, it has to also be tangent to the other vertical line. Therefore they two vertical lines have to be symmetric and each 1.75 inches from the center of the large circle (creating a duplicate constraint that makes Onshape unhappy).
So, while all the dimensions currently add up, you're essentially providing too much information. There are probably many different constraints you could delete to solve the issue. But, I think what you're looking for is something that would also retain design intent (deleting one of the small circle tangent constraints would allow the sketch to solve, but that might not reflect design intent).
I deleted the large arc and re-drew it using the 3-point arc tool. When I re-drew it, I allowed it to auto-inference that I wanted the center of the arc at the center of the large construction circle. All seems to be happy with this method.
https://cad.onshape.com/documents/1036e67ad80fbb5bff9b7631/w/910b633452369b807538751f/e/01b67eec6b0226517cc0c871
The sketch solver has to solve a system of equations. So for example, we have equations:
x+1=2
y+x=5
x+2=3
We can easily figure out that x=1 and y=4. The third equation isn't incorrect, its just not needed (and the system of equations is over-defined).
Similarly, in your sketch, you could look at the one of the vertical edges. It's position (1.75 inches from the center of the large circle) is defined by the size of your construction circles and the sketch is happy. However, when you add the last arc and constrain the center of the arc on the horizontal line and tangent to either of the vertical lines, it has to also be tangent to the other vertical line. Therefore they two vertical lines have to be symmetric and each 1.75 inches from the center of the large circle (creating a duplicate constraint that makes Onshape unhappy).
So, while all the dimensions currently add up, you're essentially providing too much information. There are probably many different constraints you could delete to solve the issue. But, I think what you're looking for is something that would also retain design intent (deleting one of the small circle tangent constraints would allow the sketch to solve, but that might not reflect design intent).
I deleted the large arc and re-drew it using the 3-point arc tool. When I re-drew it, I allowed it to auto-inference that I wanted the center of the arc at the center of the large construction circle. All seems to be happy with this method.
https://cad.onshape.com/documents/1036e67ad80fbb5bff9b7631/w/910b633452369b807538751f/e/01b67eec6b0226517cc0c871
Re: Variables and driver/ driven dimensions
No way to extract it to a table, but they do create variables.
So you can do a lot with them once they are created, including importing them into other part studios/documents
So you can do a lot with them once they are created, including importing them into other part studios/documents
Re: Variables and driver/ driven dimensions
You can use 'equal' constraints, but they will measure the length of the object relative to the sketch plane you are projecting to. So only works if they are on the same parallel plane.
Unfortunately there is no built-in ability to 'link' dimensions.
Measure value is a good feature to use here
https://cad.onshape.com/documents/77baa8153589a7fc5f289829/v/ceb4a03e4ac77173bf6d0074/e/181cb871f3008e6b885df46a
Unfortunately there is no built-in ability to 'link' dimensions.
Measure value is a good feature to use here
https://cad.onshape.com/documents/77baa8153589a7fc5f289829/v/ceb4a03e4ac77173bf6d0074/e/181cb871f3008e6b885df46a
Re: Why has my Forums view switched to German and how do I change it?
There is a switch in the very bottom left corner
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Re: Why is not possible to shell this part ?
Seems like you have some accidental sliver faces that are probably causing issues.
Re: Split and recombine surface?
@tom_auger
Thanks for sharing Tom. Do you have a link to the Document so we can take a closer look?
Whenever working with patterns or parts with symmetry, try to produce only one feature and pattern that feature afterwards. In this example, you could probably get away with just a single tooth that is patterned after all features have been created.
Thanks for sharing Tom. Do you have a link to the Document so we can take a closer look?
Whenever working with patterns or parts with symmetry, try to produce only one feature and pattern that feature afterwards. In this example, you could probably get away with just a single tooth that is patterned after all features have been created.
Re: Improvements to Onshape - August 25th 2020
Hole call outs improvements are great!
That said, we still don't have the tools to quickly make the holes we need. The hole tool hasn't changed since its introduction.
The hole tool should include basic machinist handbook content. (drill tip angles, Tapered and parallel pipe threads, and possibly: customizable pitch diameters and thread pitches)
At the very least, users should not be required to add custom features for standard-tooling-machined holes. Check out SolidWorks or Inventor's hole tool for basic user expectations.
I love Onshape, but this is a long-promised feature improvement that we NEED!
That said, we still don't have the tools to quickly make the holes we need. The hole tool hasn't changed since its introduction.
The hole tool should include basic machinist handbook content. (drill tip angles, Tapered and parallel pipe threads, and possibly: customizable pitch diameters and thread pitches)
At the very least, users should not be required to add custom features for standard-tooling-machined holes. Check out SolidWorks or Inventor's hole tool for basic user expectations.
I love Onshape, but this is a long-promised feature improvement that we NEED!
Improvements to Onshape - August 25th 2020
Just like that, another three weeks has gone by. Welcome to another new release of Onshape!
Additionally, a new administrative setting has been introduced to prevent a release candidate from being created if there is an outstanding task (a comment with a tagged user, and the box ticked to "Assign") that is directly referencing an element in the tab you are releasing from. Only once the task is resolved, from either the comment itself or the action items list, can the release candidate be submitted. While the video below shows this example on a re-release action, it is important to note this option affects all release candidates.
The revision suffix accepts multiple characters and spaces which allows you to create the exact suffix that fits your company requirements.
You many now also open a document URL from the home page, without needing to sign in. This works if you tap the link to a public document, or any link shared via email or other application you may have on your phone.
Onshape Surface Modeling is the last course in the new learning pathway: Advanced Part and Surfacing Design. This Pathway is composed of courses that teach advanced geometry modeling techniques. Onshape Surface Modeling caps off this pathway that explores Onshape surfacing workflows.
These courses are available to Standard, Professional, Enterprise, and all Educational subscriptions.
The existing permissions of the shared-in user are honored with regards to any buttons or filters shown on a shared report.
Instead of writing:
you may now simply write:
The syntax is:
Further documentation can be found here.
Please take a moment to try out these new features and improvements and leave your comments below. For a detailed list of all the changes in this update, please see the changelog.
CAD IMPROVEMENTS
HOLE CALLOUT IMPROVEMENTS
Hole callout features now include the same fly-out panel available in the dimensions tool, allowing you to add additional text to the callout as well as change the units independently of the drawing properties.IMPROVED SELECTION HIGHLIGHTING FOR MATES
Selecting a mate from the mate features list will now outline the two parts involved and highlight the associated faces on those parts that have been used to define the mate connectors. This will make it easier to understand how the mate was created without having to right-click and select the edit mate dialog.ANIMATE PLAYBACK TYPES FOR MATES
When animating a mate, you now will find additional playback types, including Single, Reciprocate, or Loop.CONSOLIDATED SEARCH & FILTER IN THE TAB MANAGER
The Tab Manager (activated by Alt + T) has a consolidated menu including new expandable buttons for Search, Sort and Filter functions. You can also toggle between List and Detailed view types as you normally could.CONFIGURATION TOOLTIP IN SHEETS PANEL
A tooltip has been added to the sheets panel in drawings. When hovering over a configured reference, you will now see information about which configuration is being shown.RELEASE MANAGEMENT IMPROVEMENTS
RE-RELEASE AN EXISTING PART NUMBER
PREVENT A RELEASE CANDIDATE IF TAB HAS OPEN TASK
You may now re-release an element at the same revision level with the same part number. This is most commonly used when a small error or typo is identified in a released drawing that needs to be corrected but does not warrant creating an entirely new revision. You must first obsolete the existing revision, making use of a new setting (in the obsoletion dialog) to allow re-release, before you'll be able to compete the release again at the same revision.Additionally, a new administrative setting has been introduced to prevent a release candidate from being created if there is an outstanding task (a comment with a tagged user, and the box ticked to "Assign") that is directly referencing an element in the tab you are releasing from. Only once the task is resolved, from either the comment itself or the action items list, can the release candidate be submitted. While the video below shows this example on a re-release action, it is important to note this option affects all release candidates.
REVISION TABLE IMPROVEMENTS
You may now manually edit the header columns for a revision table. You can also customize the default revision suffix which is applied to the unreleased line of the revision table from the release management settings.The revision suffix accepts multiple characters and spaces which allows you to create the exact suffix that fits your company requirements.
iOS IMPROVEMENTS
SIMPLIFIED NAVIGATION & INTERFACE
When accessing documents with view-only permission on an iOS device, you will now see a similar interface to the simplified view-only menu in a browser window.You many now also open a document URL from the home page, without needing to sign in. This works if you tap the link to a public document, or any link shared via email or other application you may have on your phone.
LEARNING CENTER IMPROVEMENTS
ONSHAPE SURFACE MODELING SELF-PACED COURSE AND LEARNING PATHWAY
A new course and Learning Pathway are available to Onshape users in the Learning Center.Onshape Surface Modeling is the last course in the new learning pathway: Advanced Part and Surfacing Design. This Pathway is composed of courses that teach advanced geometry modeling techniques. Onshape Surface Modeling caps off this pathway that explores Onshape surfacing workflows.
These courses are available to Standard, Professional, Enterprise, and all Educational subscriptions.
ENTERPRISE IMPROVEMENTS
SHARE DASHBOARDS & ANALYTICS
Custom reports or dashboards saved to the "My analytics" tab can now be directly shared with individuals or teams via a familiar "Share" button. Users can be given view, edit, or edit and share permissions to the report or dashboard.The existing permissions of the shared-in user are honored with regards to any buttons or filters shown on a shared report.
NEW DEFAULT DASHBOARDS
Three new default dashboards have been created, geared towards showing activity of the current user. These dashboards are "My Activity", "My Projects and Documents" and "My Releases".CUSTOM WORKFLOWS - CHANGE APPROVER ON PENDING RELEASE CANDIDATE
For customized workflows, you now can allow the creator of a release candidate to change the approvers while it is still pending. Previously, you would have to discard the candidate and re-submit it with the correct approvers.FEATURESCRIPT IMPROVEMENTS
SYNTAX FOR CHAINED ARGUMENTS
FeatureScript now allows using an arrow -> to make a function call, where the first argument is to the left of the arrow. So a->myFunction(b) is equivalent to myFunction(a, b). This lets you chain calls rather than nest them and can simplify the readability of query filters.Instead of writing:
qGeometry(qOwnedByBody(bodyQuery, EntityType.FACE), GeometryType.PLANE)
you may now simply write:
bodyQuery->qOwnedByBody(EntityType.FACE)->qGeometry(GeometryType.PLANE)
DEBUG WITH MULTIPLE COLORS
You may now apply a custom color in the debug argument. This will make it easier for you to differentiate between different features when debugging.The syntax is:
debug(context, facesToHighlight, DebugColor.GREEN)
Further documentation can be found here.
Remember: The updates listed here are now live for all users when creating new Documents and over the next few days these features will also be available in Documents created before the date of this update.
Re: Improvements to Onshape - July 31st 2020
... but only if the time is right.MBartlett21 said:The time is ripe...