Surgical Blade Design

[battlehands]

Im having trouble designing this surgical blade to the specified dimensions. I tried importing the picture as a shetch and tracing the profile of the blade, but the image is 4:1 scale, so when I apply the correct dimensions the sketch blows up. Please advise.

I have another file that details the dimensions of the slot.

http://files.engineering.com/getfil...38d-97c9-2c437eabdc4d&file=blade_template.png

 

[battlehands]

slot dimensions

 

[AnnaWood]

Just model it from scratch. Forget trying to trace the profile.

You should be able to get close enough eyeballing it.

Cheers,

Anna Wood
SW2011 SP5, Windows 7 x64

http://www.renderbay.com

http://www.solidmuse.com

http://www.phxswug.com

 

[CorBlimeyLimey]

Adjust the size/scale of the sketch to suit the known dimensions, and then trace and dimension the outline.

 

[battlehands]

I need it as close to exact as possible. I've tried to complete it a few times and am still having trouble.

 

[DiegoLGraves]

Reverse engineer in reverse. Instead of tracing over the 4:1 picture, model per the picture, then print out your model at 4:1 scale and overlay the print-out on the picture. Tweak as needed.

Diego

 

[CorBlimeyLimey]

Start a new sketch
Draw a horizontal construction line 40.96mm long (O?A length of blade)
Draw vertical construction lines at each end of the horiz line to create an H
Go to Insert > Sketch Picture and select the blade_template.png image
Re-size, rotate and move the image to fit within the H (Close-cropping the image beforehand will make this easier)
Trace and dimension the outline
The slot can be drawn and placed accurately from the given dimensions

 

[steinmini]

I would just add an additional pointer (addition to what CorBlimeyLimey suggested): start the drawing (construction line) at origin. The "sketch picture" always tries to make a coincident between the origin and the left lower corner of the imported image.

http://www.storyofstuff.org/

 

[SnowCrash]

3DContent Central has a 'surgical blade' with the slot done for you.

"the rest is left as an exercise for the student"

--
Hardie "Crashj" Johnson
SW 2011 SP 4.0
HP Pavillion Elite HPE
W7 Pro, Nvidia Quaddro FX580

 

[hititfaster]

Trace 'round it, dimension as per your drawing then scale the part x4?

 

[rollupswx]

Trace 'round it, dimension as per your drawing then scale the part x4?

How is this better than scaling the image to start?

 

[hititfaster]

From what was said in the first post, I think he has already traced and drawn the part, but is trying to then apply dimensions to scale it.

Rather than do it that way round, I think scaling the part he has already drawn would save the extra work of scaling the drawing (and therefore possibly adding further inaccuracy?) then re-doing the tracing part of the task.

Not necessarily better, but possibly, and just another suggestion.

 

[battlehands]

I scaled and rotated the picture of the blade then traced it. The dimensions are not exact, but they are close. Hopefully close is sufficient for meeting manufacturing requirements.

Thanks, all!

 

[Updraft]

battlehands,

It sounds like you are trying to manufacture a blade by reverse engineering it from a competitor's brochure. Are you trying to do this or something like it?

- - -Updraft