DTSFab.com (Desert, Trail and Sand)
The Machine Shop => Everything Cad => Topic started by: Admin on May 24, 2009, 07:52:21 PM
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Just a few test drawings, I started Auto cad last week, The center plate was a DWF from engineer, I drew from it...
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looks like you are getting the hang of it. Did you do that as two separate drawings or did you manage to just move the center plates and have the rest correct it's self? I seem to remember a command to locate stuff like pivot points so you could move one part and have the rest follow, but I can't remember what it is. <----Makes me do things the hard way. Know what I mean? Or am I confused?
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I copied the entire drawing, then i rotated everything into place. Then i selected everything and moved it as one piece... If you move one piece you have to move everything else to match, As far as i know, if you move just the plate it will not automatically rotate the arms and stuff...
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For the record, I do have a teacher via skype, Rick S... And have had some teaching from Engineer on the phone as well... I did not learn solo...
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ok, sounds like what I have to do every time. Goes something like move plate. move arms. move spindles and tires. Then double check all the centers line up. Each part moved or rotated individually using the object snaps.
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ok, sounds like what I have to do every time. Goes something like move plate. move arms. move spindles and tires. Then double check all the centers line up. Each part moved or rotated individually using the object snaps.
Are you rotating objects using the Reference command?
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Looks great!
Next step make the assemblys blocks, so they move easily as one piece.
like the tire/bearing/upright, and the complete a-arm or link.
It makes charting multiple suspension travel points much easier.
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Looks great!
Next step make the assemblys blocks, so they move easily as one piece.
like the tire/bearing/upright, and the complete a-arm or link.
It makes charting multiple suspension travel points much easier.
Already Learned that.... ;D I got everything blocked now. When i cut that from the original drawing i did paste it as one block tho on the new dwg and saved to take the pic etc... Put in a good 10 hrs today drawing, probbaly do the same tomorrow, For some reason i am hooked on this and really enjoying it....
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I draw circles with the radius the length of the arms. The center of the circle is the center of the inner pivot. Now chose the heigth to show the upright/tire. Now put the lower upright mount on the intersection of the arm radius, and the heigth. Then I draw a circle on the same point that's radius is the same as the upright mount separation. (Draw a circle with the center the center of the bottom upright and select the center of the top mount as the size of the circle.) Now the intersection of this circle and the circle representing the top arm are where it needs to be rotated to. Now you can rotate easily using the reference to the exact point.
I can see you already know how to get it done. Just sharing my method. ;)
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At the current rate your learing, you will be teaching us all soon. :D
Lmao....
We did figure out how to edit layer properties today :)
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I draw circles with the radius the length of the arms. The center of the circle is the center of the inner pivot. Now chose the heigth to show the upright/tire. Now put the lower upright mount on the intersection of the arm radius, and the heigth. Then I draw a circle on the same point that's radius is the same as the upright mount separation. (Draw a circle with the center the center of the bottom upright and select the center of the top mount as the size of the circle.) Now the intersection of this circle and the circle representing the top arm are where it needs to be rotated to. Now you can rotate easily using the reference to the exact point.
I can see you already know how to get it done. Just sharing my method. ;)
Circles are a man's best friend when it comes to locating stuff. I got me a track ball cuz my arms where getting tired.
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I draw circles with the radius the length of the arms. The center of the circle is the center of the inner pivot. Now chose the heigth to show the upright/tire. Now put the lower upright mount on the intersection of the arm radius, and the heigth. Then I draw a circle on the same point that's radius is the same as the upright mount separation. (Draw a circle with the center the center of the bottom upright and select the center of the top mount as the size of the circle.) Now the intersection of this circle and the circle representing the top arm are where it needs to be rotated to. Now you can rotate easily using the reference to the exact point.
I can see you already know how to get it done. Just sharing my method. ;)
Oh, i did it the hard way the first time, then Rick showed me the easy way.... :)
Drawing By Rick S
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I think i fxxked this all up, lol.....
Involute gear drawing (http://www.ul.ie/~nolk/gears.htm#To%20view%20these%20three%20easy%20steps,%20simply%20click%20on)
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100 tooth 530 First time....
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Chain and sprocket
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I bet Bugs been on the damn puter like 20 hrs every day, his kids dont know his name anymore and whenever he heads for teh wife she screams RAPE..... :police: ;D :police:
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have you played with the 3-d stuff yet? I did for a little bit but still have alot to learn myself. Looks like your grasping it well! 8)
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I did play with the 3d part of Auto Cad, I am not gonna fool with it anymore tho, Im gonna stick to the 2 d and projections, After i get that down ill start solidworks or something similar...
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Here are some lisp files that I find very usefull.
I am attaching a zip, and I will give a runndown of a few that are really helpful. You will have to play with the rest.
First, here is how you get them to work.
Make a directory called lisp.
Unzip the files into that directory.
Put the directory anywhere except in your Autocad folder.
Now go to find where your Autocad resides and add this into the file named "acad2004.lsp". It resides in the support subdirectory. Yours may be named 2000 or 2006 or whatever. It doesn't matter. Just find the file named "acadXXXX.lsp" in the support supdirectory. Here is the path on my machine.
C:\Program Files\Autodesk\MDT 2004 DX\Support
Click on the file and open it with wordpad or other editor.
Add this into the file.
(load "common")
I added a screenprint for clarification.
Ok, now we need to modify the autocad seach path so it will find these files.
Open Autocad.
On the top menu click on Assist. It will pull down a window. Click on options.
A box will open that looks like the screeprint.
Click on "Support file search path". Then click "add" on the right side. Now browse to the lisp directory that you unzipped the files into. It should add this search path to the list.
Go down to the next option "Working support file search path" and do the same thing adding the directory.
Now close and restart your Autocad.
The Lisp functions should now work.
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link
http://cadtips.cadalyst.com/node/tiplisting?keywords=sprocket (http://cadtips.cadalyst.com/node/tiplisting?keywords=sprocket)
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Ok,
Bug has shown me the error in my ways.
If you don't have the assist option to open the dialog for the search path, just type "options" at the command prompt and it will open.
On the newer versions of Autocad there is a Autolisp option that would allow you to select the common file rather that inserting it into the Autocad2004.lsp as I described. ;D
If you load the whole zip file the commands that I believe you will find of great use are as follows. There are many more, but these are the mainstays that I use. Most are somewhat selfexplanitory if you look at command prompt and what it is asking for.
PH Project Hole.... Make hidden and center lines for a side view. Do as many holes as you want at once.
EB Edit block
RB Redefine block.... also use this to define a block to start with.
MR Move and rotate.
CR Copy and rotate. These rotate to a reference point. Very usefull for suspension parts.
Tube Draws a square tube with wall thickness and correct radius. radius gets weird on very small tubes.
OO Double offset. Cuts offset in half so if you have a center line, and know the width you want no math required.
HS Hide section..... makes a portion of a line hidden.
SE Snap endpoint an easy way to set your osnap properties without opening the box.
ST Snap tangent
SC Snap Center
SI Snap Intersection
SN Remove all snap settings
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Hs does not function properly for me, I may be doing something wrong tho...