Total: 225 h
Thursday, March 26, 2009
Putting the brakes on
Brake Caliper. Basically lots of 2d sketches, extruded. If someone told me I would learn how to do this, I would have never believed them.
Total: 225 h
Total: 225 h
Tuesday, March 24, 2009
My first part in the new CAD program
Isn't she lovely?!?!
Upon further review later, I think the radius is too big and I'll have to do some modifications. But I'm really excited that I managed to do this so well!
Total: 221 h
Upon further review later, I think the radius is too big and I'll have to do some modifications. But I'm really excited that I managed to do this so well!
Total: 221 h
Monday, March 23, 2009
brakes and wheel hub
Did some rough drafts to understand relationships, shapes, and sizes.
Brake
Brake with wheel hub
Total: 217 h
Brake
Brake with wheel hub
Total: 217 h
Sunday, March 22, 2009
Reinventing the wheel part 2
Sketched the profile of the wheels. This CAD program is amazing, the wheel is geometrically perfect!
Total: 214 h
Total: 214 h
Saturday, March 21, 2009
Reinventing the Wheel part 1
Wow. Today I did more training in my new CAD program and designed the front and rear tires.
Total: 212 h
Total: 212 h
Thursday, March 19, 2009
Something new
I don't have much to show for myself here, but I've started working with a new CAD program. I was at a party with my girlfriend who introduced me to someone she knows who is an engineer at an auto company. He suggested I use a different CAD program. I'm giving it a try. I spent some time training and experimenting.
Total: 207.5
Total: 207.5
Saturday, March 7, 2009
figured it out.
Turns out the way I was making curves was causing the solid to be asymmetrical. I needed to make the curves in a start-end-direction fashion, so that the start could always be at the bottom, and the end always on the top. Made quite a bit of progress.
Total: 204.5 h
Total: 204.5 h
More nose cone work and a problem
I continued to work on the nose cone, adding section, and connecting them to make a solid shape.
I've run into a strange problem. Although my sections are perfectly symmetrical, the solid image is not, as can be seen from the wireframe view.
I think it's back to the drawing board on this nosecone. I know think I understand now that I need to use construction lines during the construction of my sections rather than normal lines. The CAD program seems to be saving the data from my lines even after they are erased. I am hoping if I begin using construction lines extending to infinity with no points, that there will be no data to ruin the symmetry of the solid model.
Total: 201.5 h
I've run into a strange problem. Although my sections are perfectly symmetrical, the solid image is not, as can be seen from the wireframe view.
I think it's back to the drawing board on this nosecone. I know think I understand now that I need to use construction lines during the construction of my sections rather than normal lines. The CAD program seems to be saving the data from my lines even after they are erased. I am hoping if I begin using construction lines extending to infinity with no points, that there will be no data to ruin the symmetry of the solid model.
Total: 201.5 h
Friday, March 6, 2009
Thursday, March 5, 2009
Wednesday, March 4, 2009
CAD Design
To be honest, I sat puzzled at how I was going to begin for most of today, and decided I would start with the front wing.
Total: 195 h
Total: 195 h
What have I been doing
I haven't been sitting idle, but I think I can accurately say that I haven't accomplished anything either.
I designed the car well in CAD. My thought was to 2.5d manufacture it with Balsa. I got some thin strips of Balsa wood from a local model airplane shop.
First, I sectioned my CAD model every 0.5 mm.
Then I printed the shapes
Cut a form out
Cut some tape
Tape the cut out image onto the balsa wood
Drilled a couple of alignment holes
Holes now drilled
Used a razor blade to trace the image on the paper onto the balsa.
Paper is now cut.
Take the taped paper off
Use the razor to cut the image all the way out of the balsa.
Remove the balsa section
Placed on the guide pins.
Repeat. A lot. Stacked all the balsa sections up. Epoxied them together, and covered the whole thing in a thin coat of wax.
Here are my attempts. My "try again" garage.
In the end, this didn't work either. Problem is, when you stack up 96 pieces of .5mm balsa, it doesn't necessarily make a 48mm part. I was counting on the balsa being exact, and I think at that thickness, it's just too much to ask. My first model was too tall, my second attempt was too short. Anyway, I gave up 2.5d prototyping, and tried to make a tool from my balsa blank. I mixed the plaster with too much water, the plaster tool was too soft, and broke when I tried to reassemble it to pour a casting. I'm done. I'm done with doing this by hand, I'm done with plaster casting.
I'm going digital.
Total: 194 h
I designed the car well in CAD. My thought was to 2.5d manufacture it with Balsa. I got some thin strips of Balsa wood from a local model airplane shop.
First, I sectioned my CAD model every 0.5 mm.
Then I printed the shapes
Cut a form out
Cut some tape
Tape the cut out image onto the balsa wood
Drilled a couple of alignment holes
Holes now drilled
Used a razor blade to trace the image on the paper onto the balsa.
Paper is now cut.
Take the taped paper off
Use the razor to cut the image all the way out of the balsa.
Remove the balsa section
Placed on the guide pins.
Repeat. A lot. Stacked all the balsa sections up. Epoxied them together, and covered the whole thing in a thin coat of wax.
Here are my attempts. My "try again" garage.
In the end, this didn't work either. Problem is, when you stack up 96 pieces of .5mm balsa, it doesn't necessarily make a 48mm part. I was counting on the balsa being exact, and I think at that thickness, it's just too much to ask. My first model was too tall, my second attempt was too short. Anyway, I gave up 2.5d prototyping, and tried to make a tool from my balsa blank. I mixed the plaster with too much water, the plaster tool was too soft, and broke when I tried to reassemble it to pour a casting. I'm done. I'm done with doing this by hand, I'm done with plaster casting.
I'm going digital.
Total: 194 h
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