WOW, check this machining setup.. Hexabot

[ibewgypsie]

hexabotchip



I can't even imagine interpolating them axis. you could reach a whole new level of porting heads on racecars thou. Turn, twist rotate.



------------------
David Cofer, Of:
Tunnel Hill, North Georgia

[rockrat]

I remember something like that but upside down. The tool holder was mounted on the "thingy" with all of the ball screws and would kinda squat over the work and move around. I think MIT was behind it, although I might be wrong. Very cool though.

When are you building one ibew? I'd ride the bike down to see that thing run.

[ibewgypsie]

Nahh, my plate is full at the moment, I just was in awe, thinking of the possibilities.

Closest thing to a full peripheal axis machine I have ever saw. If the head did the same wobble reach,spin,tilt.. now that could get interesting.

I can just imagine two people running "teach pendants" to move both head and table.

[Milacron of PM]

www.cuttingedgecnc.com/Movies/ffmm.wmv

[wierdscience]

Seems NIST used something similar,but bigger to mill the cases for the founding documents.

[ibewgypsie]

D:

I have never saw porno that affected me the way that video did. GEEZE, I guess I am a tool junkie.

I guess admitting it is the first step to a cure, being broke is the second. I wanna, I wanna, I can't afford to.

David

[mochinist]

http://www.practicalmachinist.com/ub...;f=13;t=001678

some more talk on the subject

[andy_b]

dang! that was cool!!!!

andy b.

[PSD KEN]

Too much for me, mental overload.

[spope14]

They make these in Portsmouth NH last I checked. ben trying to get one for the school shop for three years now, could really use it up for the five axis type of work and teaching (though not entirely the full concept, the programming is the same).

Seen these in action, they are the cats meow.

[webbch]

The video is absolutely incredible! The geometry aspect is probably a lot of fun to work out I would imagine. I wonder if there are major problems with rigidity on something like that.

Chad

[webbch]

The video is absolutely incredible! The geometry aspect is probably a lot of fun to work out I would imagine. I wonder if there are major problems with rigidity on something like that.

Chad

BTW, That picture makes me think of a mullet haircut -- business in the front (x-y table), party in the back (funky positioning system)

[hammerhead74000]

>> interpolation

The basic calculation is actually rather straightforward - for each leg, it's a matrix transform, followed by a distance calc. But, it's all the other stuff that makes it a bit of a minor headache... (see my comments in the PM forum for more on that)

[Rustybolt]

Lodge and Shipley(or somesuch) made one many years ago to mill propeller blades for the US Navy. They donated it to a museum in England. It was written up in -Model Engineering Workshop.

[This message has been edited by Rustybolt (edited 07-25-2005).]

[ibewgypsie]

<Quote> >> interpolation

The basic calculation is actually rather straightforward - for each leg, it's a matrix transform, followed by a distance calc. But, it's all the other stuff that makes it a bit of a minor headache... (see my comments in the PM forum for more on that)

<END QUOTE>

Yeah right, want to make me and a lot of robot users happy? Write some kind of program that convertes Normal G-code to interpolated polar coordinates during the move. I got a headache just thinking about "how" I would accomplish it. Imagine, you only need "one" traversing Arm on a rotary..

In 1988, (when I passed my tests) There were over 65,000 known robotic languages.
Instead of Using someone elses like Gcode standards they write thier own.

In defence, The sanyo-panasonic robots I worked on recently had a excellent "teach" mode that would follow commands precisely. (cnc's don't)
THEN< the dumbarses put Palm Pilot Windows OS on the cpu. Mig would lose it's mind and I'd have to reset the cpu.
It'd lose it's mind at least once a day. There ain't nothing like standing next to a welding curtain and a hi-speed moving welding mig come flying out and nearly stabbing you or knocking you down. Usually, it'd just ram it's torch into the jigs and sit there an quiver thou..

David Cofer