We upgraded AutoCAD LT 2015 to AutoCAD 2017 in the office by installing 2017, then carrying across settings and uninstalling the old one. On the first few PCs this worked OK but then it broke the Explorer file assciations horribly.
It produced an error along the lines of Cannot find AutoCAD LT 2015. Which was of course obvious because it was no longer on the machine.
After searching for the answer, this thread suggested wiping the machines, which currently was not an option.
The next option was to re-associate the files with AutoCAD rather than DWG launcher. This is really annoying solution as everytime you double click in explorer it launches a completely new process of AutoCAD which is very resource heavy when launched lots of times. This however was our temporary fix.
After some research, here is the solution if file associations in Explorer for AutoCAD are broken. This a tweaked version of what is shown on this page.
Fire up regedit (note you can break things with regedit, you have been warned!)
Press WINDOWS-R on the keyboard to bring up the Run window, enter REGEDIT and click OK.
Navigate to the following folder: HKEY_CURRENT_USER\Software\Autodesk\DwgCommon\shellex\apps
Select the sub-key folder under “apps,” including the long string of numbers and letters that identify your version of AutoCAD.
On the right pane, verify that the “OpenLaunch” key contains the path to the correct acad.exe file. Double-click and edit if necessary – this bit you need to change 2015 to 2017.
On the left pane, right-click the folder with the long string of numbers and choose “Copy Key Name.”
Select the “apps” folder, and in the right pane, double-click (Default).
Delete the current data value and paste the key name that you copied. Be sure to remove the folder path that precedes the key name.
Click OK and close the Registry Editor window.
I found at this stage nothing seemed to have changed. So ensure that you right click and go to choose another app.
Once on the choose another app bit click on AutoCAD DWG Launcher and click Always use the app.
This should mean that now when you double click DWG files AutoCAD LT 2017 will launch and all will work properly. You might find as we did that AutoCAD LT 2017 went through the initial start-up and migration settings again. Click always associate DWG files with AutoCAD LT if this box comes up.
You might find at this stage that your icons are still blank. No worries. Reboot.
Once rebooted we found when we double clicked that the “How do you want to open this file” box came up again. We clicked AutoCAD DWG Launcher and all the icons suddenly appeared.
Today a colleague of mine could not plot a polyline at the desired lineweight. We tried different layer with the colour changed to see if was the plot style interferring. Tried turning off scale lineweights. Tried overriding the lineweight on the object itself. Tried a new plot style.
After all these attempts it occured to me that the polyline thickness might have a impact on the lineweights and it does.
Altering the polyline global width to 0 meant the lineweight now plotted correctly.
We had new printers in today, they were Xerox machines. They are quiet neat but not particularly useful when printing from AutoCAD. The reason why? Because for some reason AutoCAD and the Xerox drivers do not play nice with each other when printing with transparency.
When printing with transparency checked in the plot dialog the Xerox printers just print a small section of the page, about a 5th. Without that checked all is good.
The reason seems that AutoCAD prints vectors normally but when transparency is checked is prints rastors. For some reason this does not play well with the Xerox.
On this post on the second page are some settings but they are not on my driver version. I will investigate some options and update if I find a solution with the newer drivers.
If you use a system of drawing sheet and drawing model in your practice where both are seperate files and the sheets are like a piece of paper with the drawing information pulled into it then this is something you might have come across already, if not then this might help you in the future if you encounter it.
So generally you will attach one or two external drawings to a sheet file and then adjust layers to suit in the sheet file. However occaisonally you will set up a drawing with an XREF, usually an overlay type of drawing (not to be confused with overlay type of XREF) where you have a base drawing and the layers are adjusted to be simplistic and then further information is drawn over the top, e.g. a fire drawing or drainage drawing.
This is where it gets complicated. There is now a chain of drawings. Drawing A (the base drawing) –> Drawing B (the overlay type of drawing) –> Drawing C (the plot drawing). [Note: the arrows indicate XREF attachements]. This chain of XREFs is called nesting.
The problem comes when you want Drawing C to look the same as drawing B does. When you attach Drawing B to C all the layers on drawing A change to when they were first attached to drawing B, all the changes in drawing B seem to be lost. But when you go back to drawing B it still looks as it should. Confused?
The problem is AutoCAD pulls in XREFs (external references) from their source files and not through the nesting. So any information for drawing A setup in drawing B will not be imported into C as drawing C as the information is directly pulled from drawing A.
In order to circumvent this annoying behaviour layer states export and load should be used. Or you just reset them up if its only a few changes, but if lots of colour changes and layer adjustments have been made then this is the method for you.
This is taken from this page: (Copyright AutoDesk).
To export layer settings
At the command prompt, enter LAYER.
In the Layer Properties Manager, click Layer States Manager.
In the Layer States Manager, create a new layer state or select an existing one. Click Export.
In the Export Layer State dialog box, enter a file name and specify a location for the file.
Click OK to close each dialog box.
To restore layer settings
At the command prompt, enter Layer on the command line.
In the Layer Properties Manager, click Layer States Manager.
In the Layer States Manager, select a named layer state.
Select the settings that you want to restore.
Now you should have the correct layer information in drawing C!
Now you have type STARTMODE and set the variable to 0. Then type STARTUP and set it to 0. Now you will have a blank drawing on startup. Don’t forget to set the default drawing for QNEW otherwise you will get the default template.
Autodesk, oh Autodesk. Why do you not bother to fix major bugs? There are two zoom extents bug associated with UCSFOLLOW. One is one hatching and the other is when double clicking in the viewport. Whilst the viewport one can be controlled by locking the viewport, the hatching one can only be solved by turning off the UCSFOLLOW command. Which is silly really.
One of my colleagues noted that she wanted all her measurements to be in imperial when dimensioning for her client. The drawing had been drawn in metric mm.
Whilst there are ways to convert the drawing in its entirety into imperial and visa versa, there is very little information on temporarily change the units or dimension style.
So here is how to place an imperial dimension on a metric drawing.
First go to the dimension style manager (_DIMSTYLE) and then select your dimension that you will be starting with. In our office we have a dimension style for each scale the drawing will be printed at (we have not got to annotative objects yet…). So I started with 1:100.
Click on new and it will create a new style based on the 1:100 dimension style selected. I renamed the new style to 1:100 feet so its clear that it is a different style but has the scale of 1:100 and is in feet!
Then leave every other setting alone and go to the Primary Units section. Change the unit format to Architectural and the Precision to 0′-0″.
Then change the scale factor to 0.0393700787. This scales the mm in inches. It is the basically the conversion of 1mm to 1inch.
Save style and that’s it. You now have a dimension style that outputs feet and inches from a metric drawing. Even better you can have both metric dimensions and imperial on the same drawing with this method.
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