Random one Posted August 20, 2009 Share Posted August 20, 2009 Hi everyone, I'm new to Auto CAD, but I've drawn few things with CADS. Is this kind of gear hard to draw: img146.imageshack.us/img146/5590/43478524.jpg How can I draw it to be exatly the same? I have only these dimensions for it: 0.8 mod 32, 107 tooth. I will get the real gear in next few days from my friend so I can do some measurements, but I'm concerned if I'm able to draw the tooth so they are identical. Thank you for any help you can give! Quote Link to comment Share on other sites More sharing options...
StevenMc Posted August 20, 2009 Share Posted August 20, 2009 Firstly welcome to the forum its hard to tell if you will be able to draw this, if you manage to get all the dimensions then its drawable. How much experience do you have and what have you drawn would be some good info Quote Link to comment Share on other sites More sharing options...
Random one Posted August 20, 2009 Author Share Posted August 20, 2009 I have only drawn some boxes and holes But I will draw this with my dad who has been drawing with CADS for over 10 years. He is electrical designer (I think thats correct termn in english ). Quote Link to comment Share on other sites More sharing options...
StevenMc Posted August 20, 2009 Share Posted August 20, 2009 well if you've only drawn boxes and holes it will be harder to draw. Its not impossible though, you may just find it a little harder but with some help with your Dad im sure you'll get there it would be good to see your end result, you could post it in the showcase part of the forum to show off your good work All the best Quote Link to comment Share on other sites More sharing options...
Random one Posted August 20, 2009 Author Share Posted August 20, 2009 You don't have any tips how to draw those teeth? Quote Link to comment Share on other sites More sharing options...
StevenMc Posted August 20, 2009 Share Posted August 20, 2009 well i would probably just draw it in plan then exrtrude it by what ever the dimension is because it looks to me like its all the same thickness. Quote Link to comment Share on other sites More sharing options...
gbradley Posted August 20, 2009 Share Posted August 20, 2009 Draw a circle, draw one tooth, and then make a polar array. Quote Link to comment Share on other sites More sharing options...
chelsea1307 Posted August 20, 2009 Share Posted August 20, 2009 check out this thread http://www.cadtutor.net/forum/showthread.php?t=36900&highlight=draw+gear Quote Link to comment Share on other sites More sharing options...
Random one Posted August 20, 2009 Author Share Posted August 20, 2009 didn't udnerstand wht exrtrude means, but is there some way to get those teeth automaticly if I have the measurements? I googled and found one called "Gear Factory 6", do you know if that's any good? Quote Link to comment Share on other sites More sharing options...
chelsea1307 Posted August 20, 2009 Share Posted August 20, 2009 extrude it an autocad command to give a select object or objects height. Pretty much saying draw the gear in 2d then extrude (give it a height) that you need definition from acad help: Creates a 3D solid or surface by extruding a 2D object Quote Link to comment Share on other sites More sharing options...
ReMark Posted August 20, 2009 Share Posted August 20, 2009 Extrude is a term used in 3D. Extruding an object gives it height. I'm not familiar with Gear Factory 6 but I'm pretty sure I saw a lisp routine somewhere that somewhat automates the process of drawing a gear. Is GF6 an add-on to AutoCAD? Quote Link to comment Share on other sites More sharing options...
Random one Posted August 20, 2009 Author Share Posted August 20, 2009 Ok, thanks for that. Do you think I should live that "Gear Factory" alone? Remark: cwattsdesign.com/gearfactory.htm Quote Link to comment Share on other sites More sharing options...
ReMark Posted August 20, 2009 Share Posted August 20, 2009 Gear Factory 6 is compatibile with AutoCAD. And it seems rather inexpensive too. What version AutoCAD are you using? http://www.softpedia.com/get/Science-CAD/Gear-Factory.shtml Quote Link to comment Share on other sites More sharing options...
chelsea1307 Posted August 20, 2009 Share Posted August 20, 2009 another thing to consider is how often will you be drawing these gears? If its just this once, i would just create it with autocad if its something you will be doing multiple times a day/week then you might want to get the program Quote Link to comment Share on other sites More sharing options...
chelsea1307 Posted August 20, 2009 Share Posted August 20, 2009 found a free lisp to draw gears at http://www.cadmonkey.com/lisp.htm find the gear.zip and download it will be 2d but then you can extrude to 3d, and its free Quote Link to comment Share on other sites More sharing options...
ReMark Posted August 20, 2009 Share Posted August 20, 2009 You can download gear.lsp from here. It's for 2D. You'd have to do the rest yourself to get a 3D solid from it. http://www.beowolftech.com/lispgen/examples.html Quote Link to comment Share on other sites More sharing options...
Random one Posted August 20, 2009 Author Share Posted August 20, 2009 Ok, Thanks again. I will look into this more tomorrow and I will post how it goes. Quote Link to comment Share on other sites More sharing options...
ReMark Posted August 20, 2009 Share Posted August 20, 2009 Sorry Chelsea. Didn't mean to step on your toes (or fingers). Bit of a time lag for some reason today on my part. Quote Link to comment Share on other sites More sharing options...
chelsea1307 Posted August 20, 2009 Share Posted August 20, 2009 not a problem, you usually beat me (and most people) to the answer Quote Link to comment Share on other sites More sharing options...
johnnybean Posted August 23, 2009 Share Posted August 23, 2009 Dray one tooth and then type AR and ENTER . In the array box select POLAR and type 360 degrees and select the gear ,and then you need to select the center of the rotation so a circle drawn already and the gear positioned on that circle will help ,then AutoCAD draws them all for you . You may need a couple attempts to get the alingment correct. Then use the EXT command (extrude)and select the gear and it will prompt for Height which refers to the thickness of the sprocket or gear and turns it into a 3D solid. Hope that helps. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.