rcaddict Posted December 9, 2019 Share Posted December 9, 2019 hope someone can help i use a very old version of autocad for my 3d printing but when i try to design a cowl i can never figure out how to have a offcentre extrusion like a wot 4 cowl hope this makes sense to someone Quote Link to comment Share on other sites More sharing options...
FlyinFlynn Posted December 10, 2019 Share Posted December 10, 2019 Perhaps you could post a picture of your attempts at a cowl and what you are trying to achieve? I knocked up a quick attempt..is something like this what you are looking to do? Quote Link to comment Share on other sites More sharing options...
rcaddict Posted December 10, 2019 Author Share Posted December 10, 2019 thats exaclty what im after, was it made up in sections on autocad (I hadnt thought of doing that) ? Quote Link to comment Share on other sites More sharing options...
FlyinFlynn Posted December 10, 2019 Share Posted December 10, 2019 No...I used 123DDesign. Make a 1mm thick square and a 1 mm thick cylinder, place the cylinder above the square in the required position, then loft between the two. Remove the original square and cylinder and hollow out the shape, cut out the holes and radius the corners......perhaps autocad has a lofting feature? If you are thinking of printing this it will take a bucket load of support material!! Edited By FlyinFlynn on 10/12/2019 10:31:46 Quote Link to comment Share on other sites More sharing options...
rcaddict Posted December 10, 2019 Author Share Posted December 10, 2019 thanks will give it a go (not heard of lofting but will look it up) Quote Link to comment Share on other sites More sharing options...
Martin Harris - Moderator Posted December 10, 2019 Share Posted December 10, 2019 Maybe print that in 2 sections? Print the nose area flat and the sides should then print without support... Quote Link to comment Share on other sites More sharing options...
FlyinFlynn Posted December 10, 2019 Share Posted December 10, 2019 Maybe so Martin. I guess it might just print ok standing on its nose..depends on the angle! It would probably still need some support either way under the cylinder cut out but I wasn't planning on trying it. Something like this.. How hot will the exhaust get? PLA goes soft at about 150 degrees and melts at 180... I don't think printing a cowl is the best solution rcaddict, maybe vac forming an old pop bottle over a wooden plug would work better Quote Link to comment Share on other sites More sharing options...
rcaddict Posted December 10, 2019 Author Share Posted December 10, 2019 im sure it would be ok on its nose, good point about heat hadnt thought about that cause its electric 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.