Using a Sketch as a reference / construction for a second sketch (plus a little Dodo WB)
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Using a Sketch as a reference / construction for a second sketch (plus a little Dodo WB)
Hi,
I may have completely the wrong work flow here but I will explain my aim and how I am try to do it.
I am trying to construct a model of a pair of metal garage doors doors I am building out of cold rolled steel. My plan is to:
1. create a sketch of the opening.
2. create sketch that uses the opening as reference for the frame.(size / clearance offsets)
3. create a sketch that references the frame to create the door frames (size / clearance offset)
4. use the sketches from 2 and 3 together with dodo work bench to create the frame, and doors.
Problems.
1.Once I draw the opening if I start a new sketch I can't reference the "opening" sketch. If I draw all the sketches in one this is now one item.
2. The tutorials I see on dodo involve creating a sketch and padding to crate an object to select the edges to frame. As this is just a frame in a plane how to I achieve creating an object from the sketch that is just in the plane?
Thanks
I am on the Real Thunder branch
OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 2022.1128.26244 +5318 (Git)
Build type: Release
Branch: LinkDaily
Hash: d45d221edcc7a757eb4e4eb638da0db5ed2759aa
Python version: 3.8.10
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.6.2
Locale: English/United Kingdom (en_GB)
I may have completely the wrong work flow here but I will explain my aim and how I am try to do it.
I am trying to construct a model of a pair of metal garage doors doors I am building out of cold rolled steel. My plan is to:
1. create a sketch of the opening.
2. create sketch that uses the opening as reference for the frame.(size / clearance offsets)
3. create a sketch that references the frame to create the door frames (size / clearance offset)
4. use the sketches from 2 and 3 together with dodo work bench to create the frame, and doors.
Problems.
1.Once I draw the opening if I start a new sketch I can't reference the "opening" sketch. If I draw all the sketches in one this is now one item.
2. The tutorials I see on dodo involve creating a sketch and padding to crate an object to select the edges to frame. As this is just a frame in a plane how to I achieve creating an object from the sketch that is just in the plane?
Thanks
I am on the Real Thunder branch
OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 2022.1128.26244 +5318 (Git)
Build type: Release
Branch: LinkDaily
Hash: d45d221edcc7a757eb4e4eb638da0db5ed2759aa
Python version: 3.8.10
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.6.2
Locale: English/United Kingdom (en_GB)
- Attachments
-
- WorkShopDoors.FCStd
- (6.17 KiB) Downloaded 9 times
Last edited by TheBrick on Wed Jan 25, 2023 10:22 am, edited 1 time in total.
Re: Using a Sketch as a reference / construction for a second sketch (plus a little Dodo WB)
Post the file you have.
Re: Using a Sketch as a reference / construction for a second sketch (plus a little Dodo WB)
Added to OP but not much in it as I could not achieve what I needed to
- papyblaise
- Veteran
- Posts: 8027
- Joined: Thu Jun 13, 2019 4:28 pm
- Location: France
Re: Using a Sketch as a reference / construction for a second sketch (plus a little Dodo WB)
it's a good start, use your 1st sketch as a master sketch on which you redraw 2 sketches using external references on the 1st sketch
- Attachments
-
- WorkShopDoors PPB.FCStd
- (11.57 KiB) Downloaded 10 times
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- WorkShopDoors PPB.JPG (34.75 KiB) Viewed 766 times
Re: Using a Sketch as a reference / construction for a second sketch (plus a little Dodo WB)
Hi @papyblaise that is what I am struggling with. I can't work out how to reference the first sketch in any new sketches. I can sketch over the top but I am only lining up by eye and fine mouse movements, super zooming in.
Re: Using a Sketch as a reference / construction for a second sketch (plus a little Dodo WB)
Ahhh is this what I am looking for?
- Attachments
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- magicButton.PNG (42.77 KiB) Viewed 644 times
Re: Using a Sketch as a reference / construction for a second sketch (plus a little Dodo WB)
Ahhh is this what I am looking for?
Re: Using a Sketch as a reference / construction for a second sketch (plus a little Dodo WB)
Ok. Progress!
I managed to create a second sketch that referenced the first by sing the button above.
then Iwas able to select the sketch "SkhDoor", select Dodo work bench Insert a section for my angle iron (40x20x4), then select FrameBranchManager and add a frame to my sketch!
new Problems:
1. The top and bottom rail need to be rotated. Selecting the rotate tool from within branch manager results in all the components of the frame being rotated. the tutorials I watch show just selecting one frame element should rotate just the one beam not all, how do I rotate just the one frame element?
2. On all frame elements there are placed with the sketch on the "wrong"edge" of the angle from my POV how do I select which edge the frame should reference against? Something to do with "Base Attachment" from within each one of the structures perhaps?
I managed to create a second sketch that referenced the first by sing the button above.
then Iwas able to select the sketch "SkhDoor", select Dodo work bench Insert a section for my angle iron (40x20x4), then select FrameBranchManager and add a frame to my sketch!
new Problems:
1. The top and bottom rail need to be rotated. Selecting the rotate tool from within branch manager results in all the components of the frame being rotated. the tutorials I watch show just selecting one frame element should rotate just the one beam not all, how do I rotate just the one frame element?
2. On all frame elements there are placed with the sketch on the "wrong"edge" of the angle from my POV how do I select which edge the frame should reference against? Something to do with "Base Attachment" from within each one of the structures perhaps?
- Attachments
-
- WorkShopDoors.FCStd
- (27.96 KiB) Downloaded 11 times
- papyblaise
- Veteran
- Posts: 8027
- Joined: Thu Jun 13, 2019 4:28 pm
- Location: France
Re: Using a Sketch as a reference / construction for a second sketch (plus a little Dodo WB)
let dodo make dodo (to bed in french), use Sweep from PartWb and the profile will rotate around the frame in the correct orientation
- Attachments
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- frame.FCStd
- (13.04 KiB) Downloaded 8 times
Re: Using a Sketch as a reference / construction for a second sketch (plus a little Dodo WB)
Nice idiom!
Thanks I think I see what you have done. The sweep is in slightly the wrong place but I think this is because of the Angle_40x20x4 sketch is centred around the origin. I am guessing after reading a little about sweep tool and attachments in general.
So now the question is I seem unable to edit the Angle_40x20x4 sketch. It is greyed out, a quick google suggests this is a visibility issue but the "eye" is not crossed out and hitting space crosses it out as expected. This sketch seems to be locked in some way? How can I unlock it to edit?
Thanks I think I see what you have done. The sweep is in slightly the wrong place but I think this is because of the Angle_40x20x4 sketch is centred around the origin. I am guessing after reading a little about sweep tool and attachments in general.
So now the question is I seem unable to edit the Angle_40x20x4 sketch. It is greyed out, a quick google suggests this is a visibility issue but the "eye" is not crossed out and hitting space crosses it out as expected. This sketch seems to be locked in some way? How can I unlock it to edit?