Tuesday, June 4, 2013

Modifying JHack's servobed and cover for easy mounting and removal: part 2

I was able to finish a rough draft of the new screwed down cover last night and printed it this morning.  Here is the print with support material.




Oddly, when I peeled support material off of it, one corner of the front screw-down tab was warped.  I'm not all sure why that happened.



I decided to make the guides an integral part of the cover so that there would not be a lot of gluing and messing about with the assembly.

7 comments:

  1. Hi. I like what you have done. Will you be releasing the files ?

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  2. I certainly will be releasing the files. They are a bit rough right now, so I want to knock off a few little problems. I want to print that top cover again to make sure that the warping isn't a serious problem. I also want to print the top shells of the forearm to be sure that everything fits without clashing. If you want to mess around with them sooner than say, this weekend, let me know and I'll email them to you.

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  3. BTW, just out of curiosity. What kind of printer are you using?

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  4. Don't worry about emailing them I'm working all weekend, I'm at work right now lol ( hope my boss don't read this ). I'm using a maker bot replicator 2. All my inmoov is done in pla , I would like more on how you did the mods eg software and some tips as I don't know how to modify stl files the way it looks like you did. I'm new to 3d design.

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  5. Huh, that begs the question of what you are using to do your 3D design? I use a combination of the free, open source Art of Illusion 3D design app. and Netfabb Professional, which I bought years ago when it was a lot cheaper than it is now.

    Art of Illusion can be mastered by an eleven year old in about 30 minutes. Very, very short learning curve. Unlike most 3D CAD packages it doesn't build up an object via a set of primitive shapes. It DOES, but once you do boolean operations to get the shapes you want it doesn't save the process you went through to get to your final design. That's both nice and nasty largely because most 3D CAD packages depend on that history of how a shape came to be to do more or less faultless boolean ops. Art of Illusion just goes for broke with boolean ops and tries to do them with the final mesh alone.

    As a result, it doesn't always get it right. That's where Netfabb Professional comes in. It has a boolean ops module that is almost completely flawless. You can throw two surfaces meshes at it and it will get the boolean op right 99.99% of the time. It also has a module which will fix imperfect meshes. That is handy for cleaning up near perfect meshes that Art of Illusion sometimes throws out.

    As I said, between the two apps I get things done. :-)

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  6. Thanks ill look into those program's , used auto cad inventor and I'm not very good with it.

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  7. Yeah, I tried Autocad Inventor quite a few years ago. It struck me as a very capable piece of software with a terrible learning curve. :-(

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