Problems with Pad when constructing girder bridge deck

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Shalmeneser
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Re: Problems with Pad when constructing girder bridge deck

Post by Shalmeneser »

Afaik, it's not possible to do PolarPattern on a LinearPattern. You need to use MultiTransform for that.
PeterSD
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Re: Problems with Pad when constructing girder bridge deck

Post by PeterSD »

Shalmeneser wrote: Sat Jan 29, 2022 1:58 pm Afaik, it's not possible to do PolarPattern on a LinearPattern. You need to use MultiTransform for that.
Thanks for your reply. I agree I need to get the MultiTransform working before I can complete the padding operation. Before I move on I wanted to make sure that the components parts are correctly set up.
Please note that the Reference file had a MultiTransform failure but despite this two extra padded functions were added to the frame albeit in the wrong position.
I have gone through checks which I have described in great detail. I have not received any comments from anyone. These checks were to avoid me taking one step forward and two steps back. I have included comments throughout regarding my findings and thoughts. Do you have any comments on this please?
I saved the original Reference file with a unique name and reloaded your original file. This works exactly as it should.
Kind Regards
Peter
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Shalmeneser
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Re: Problems with Pad when constructing girder bridge deck

Post by Shalmeneser »

Deck Rev 5 ,2_SHALM.FCStd :
PolarPattern :
* "No axis reference specified" -> problem with the axis
* reselecting the axis : it works
* in your original PolarPattern, you are using a non-existant axis : DatumLine001
* you need to select "DatumLine001 PolarPattern"
I have not received any comments from anyone
Too much questions ? (which I don't understand everything)
PeterSD
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Re: Problems with Pad when constructing girder bridge deck

Post by PeterSD »

Shalmeneser wrote: Sat Jan 29, 2022 2:51 pm Deck Rev 5 ,2_SHALM.FCStd :
PolarPattern :
* "No axis reference specified" -> problem with the axis
* reselecting the axis : it works
* in your original PolarPattern, you are using a non-existant axis : DatumLine001
* you need to select "DatumLine001 PolarPattern"
I have not received any comments from anyone
Too much questions ? (which I don't understand everything)
Thanks again Sharmer.
PolarPatternb Working file.PNG
PolarPatternb Working file.PNG (11.1 KiB) Viewed 972 times
I already had the axis set correctly. I edited this in the Model page but I have 2 entries in the Originals which I think should be blank but cannot find how to remove them. Using the Task dialog does not seem to help me set the axis in any other way.
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bambuko
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Re: Problems with Pad when constructing girder bridge deck

Post by bambuko »

PeterSD wrote: Sat Jan 29, 2022 2:34 pm ... I have not received any comments from anyone....
Perhaps, because it is "help forum" not "tuition/tell me how to do my model step by step" service :lol: :mrgreen:
I admire and respect Shalmeneser's (and others) patience :ugeek:
I am using Link branch and Assembly3
you can also download ... and try it here
excellent Assembly3 tutorials here
PeterSD
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Re: Problems with Pad when constructing girder bridge deck

Post by PeterSD »

bambuko wrote: Sat Jan 29, 2022 3:49 pm
PeterSD wrote: Sat Jan 29, 2022 2:34 pm ... I have not received any comments from anyone....
Perhaps, because it is "help forum" not "tuition/tell me how to do my model step by step" service :lol: :mrgreen:
I admire and respect Shalmeneser's (and others) patience :ugeek:
Thanks for your reply. I too have great admiration for his patience and help. I was very honest as to what I was seeking. You all provide your free time to help others and I appreciate that too.
PeterSD
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Re: Problems with Pad when constructing girder bridge deck

Post by PeterSD »

I have spent the week learning about DatumLines, DatumPlanes, Polar Pattern, MultiTransform Mirroring and refreshing on LinearPattern to move on with the bridge build.
Having completed the LHS , I have started out creating a mirror image to complete the front view. The first step in this is to create a datum Plane which I have centred on the middle of the bridge and am adding the pads one by one ensuring that I am adding them in the correct order. I have come across the problem where MultiTransform (used to add the girders under bridge deck) cannot be used as a feature in the Mirror Tool.
mirror across Y axis.PNG
mirror across Y axis.PNG (73.43 KiB) Viewed 832 times
. I had thought that this would not be a problem because the extra girders resulted from this. I am now worried that other transformation features I have used will also be rejected.
The only way out would be for me to create a sketch showing all the girders in place and padding it. Mirroring would work. Unfortunately, the same could be said for all the other transformation tools used.
Kind Regards
Peter
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Shalmeneser
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Re: Problems with Pad when constructing girder bridge deck

Post by Shalmeneser »

You'll need to use other workbench for repetition of this body.
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Shalmeneser
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Re: Problems with Pad when constructing girder bridge deck

Post by Shalmeneser »

If your purpose is to 3d-print this bridge, you should keep with single element (specifically refine for 3d-print) and multi-print it, imho.
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Re: Problems with Pad when constructing girder bridge deck

Post by chrisb »

In PartDesign you cannot transform a Mirror, Linear- or PolarPattern or a MultiTransform. You have to use the MultiTransform instead. In your case you could only add another mirror to the MultiTransform.

Instead of mirroring all features in a (complicated) body, you should rather do a single mirror of the complete body, not the features in Part workbench.
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