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Type: Posts; User: MalachiLandis

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  1. Replies
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    Re: Thoughts on a 5 axis router/welder?

    It seems to me that a machine capable of machining the mold and laying the tape would be attractive as it would combine 2 machines in 1, but you're probably right. I can't imagine trying to get one...
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    Re: Thoughts on a 5 axis router/welder?

    On our robotics team, we find ourselves machining a lot of 2" by 1" or 2" by 1.5" hollow aluminum tubing, 0.125" wall. This is all done on our OMIO x8. What about a 4th axis that the spindle would...
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    Re: Thoughts on a 5 axis router/welder?

    Gerry,

    I knew that weren't many 5 axis machines that have been made and posted on this forum, but I did not know the number was as low as 5! Does this include all types of 5 axis? I feel like the...
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    Re: Thoughts on a 5 axis router/welder?

    I don't have a diagram of the exact setup I'm thinking, but it's similar to the chain fall described here:

    https://en.wikipedia.org/wiki/Differential_pulley

    I will work on producing a better...
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    Re: Thoughts on a 5 axis router/welder?

    Peter,

    The chinese windlass is also known as the differential capstan, so the reduction is developed not by the ratio of the two spools but as a function of the difference in diameter between...
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    Re: Thoughts on a 5 axis router/welder?

    Peter,

    I promise I will eventually 3D print a prototype and make a video about it. I have heard of Dyneema. There is another interesting actuator called a twisted rope actuator being used in...
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    Re: Thoughts on a 5 axis router/welder?

    RCaffin,

    Yes, I would like to make many of my own parts. I'm interested mostly in the mechanical side, so I'm fine with purchasing motors and electronics. There's still personal value in making...
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    Re: Thoughts on a 5 axis router/welder?

    Thanks Peter, RCaffin, and routalot.

    I am currently a junior mechanical engineering student. I've run and programmed a Velox 5050 CNC router when I was on my high school robotics team. I'm...
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    Re: Thoughts on a 5 axis router/welder?

    Peter,

    I think the budget for this thing would fall in the $500 to $5000 range. It seems like it would be impossible to acquire anything more than the stepper drivers in the $500 range haha.
    ...
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    Re: Thoughts on a 5 axis router/welder?

    Peter,

    That image from earlier was just a screenshot of something I made in Inventor, so I'm familiar with parametric CAD.

    Isn't there something to be said for designing a tool to be as low...
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    Re: Thoughts on a 5 axis router/welder?

    Thanks for the help Peter.

    1) My thought behind the crossed gantry was that it would be a different way to handle the loads of the highly cantilevered Z axis. A regular CNC router has a...
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    Re: Thoughts on a 5 axis router/welder?

    Absolutely. I'm a university student at the moment, so I think part of the use of this machine might be in developing that software side. That's not my focus, but I know of people who would like to...
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    Thoughts on a 5 axis router/welder?

    Hello all,

    I'm not sure if this is exactly the right place to post this but I wanted to get some ideas out there and get some feedback on them.

    I've seen lots of CNC routers designed and built...
  14. Re: Thinking about designing a 5 axis machine, what about an AB head?

    Peter, I was thinking that this inflection point could be handled without having to do a full retraction. You could coordinate motion between the A, Z, and X axes to sort of freeze the endmill in...
  15. Re: Thinking about designing a 5 axis machine, what about an AB head?

    https://www.cnczone.com/forums/attachment.php?attachmentid=446466&stc=1https://www.cnczone.com/forums/attachment.php?attachmentid=446468&stc=1https://www.cnczone.com/forums/attachment.php?attachmentid...
  16. Re: Thinking about designing a 5 axis machine, what about an AB head?

    Yes, I do mean rotation about the X and Y axes. I had a sort of specific use case in mind that I will describe below that makes an AB head seem attractive.

    Imagine you were to machine a cylinder...
  17. Re: Thinking about designing a 5 axis machine, what about an AB head?

    Can you clarify what you mean? AB heads must exist somewhere, I just haven't seen any. Zimmermann sells an ABC head and in their advertisement they compare it to an AC and an AB head, so someone must...
  18. Thinking about designing a 5 axis machine, what about an AB head?

    I have been thinking about designing a 5 axis CNC router and I was wondering about designing an AB head rather than the standard AC head. I know, designing any CNC machine is a whole can of worms...
  19. Re: Designing an extremely large CNC machine

    https://www.cnczone.com/forums/attachment.php?attachmentid=405172&stc=1https://www.cnczone.com/forums/attachment.php?attachmentid=405174&stc=1 Hopefully these pictures give you a better idea of what...
  20. Re: Designing an extremely large CNC machine

    Thank you guys for the suggestions. It sounds like it will come down to making a prototype and seeing the specific kinks that arise.

    Thanks again.
  21. I am actually using wheels to drive the gantry. ...

    I am actually using wheels to drive the gantry. And the way that these segments need to be put together makes it necessary to have them on a table.

    My tolerance on these plastic pieces is +/-...
  22. Re: Designing an extremely large CNC machine

    Interesting idea with the timing belt. I considered that option, but it seems like it would be a little sketchy (and stretchy) over 50-60 feet, plus it's kind of expensive. This machine also does...
  23. Designing an extremely large CNC machine

    Hello folks,

    I am designing a machine to make high altitude, zero pressure balloons. Each balloon is made up of 50 segments that are all heat fused together. These segments are almost 60 feet...
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