Re: [CAD_CAM_EDM_DRO] Re: Open (i think) design for a parallel robot (reprap may be interested)

Graham,

Let me second that -- your site is excellent. In fact, your site was
one of the reasons why I started working on my design (which is a
"triaglide with vertical rails", as per your diagram).

Mike

Alan Marconett wrote:

> HI Graham,
>
> *I* looked at your site! I've been back a few times, for that matter. I
> like the Hexel platform, and would love to make a working model of it. Not
> sure if I could work out ALL the kinematics, but it would be a good
> exercise. What is the stuff that looks like links (copper colored) down ON
> the table?
>
> Alan KM6VV
> P.S. It's OK to talk to yourself; it's when you start ANSERING yourself
> that you want to worry about!
>
> <SNIP>
>
>>I sometimes wonder if I am talking to myself. I have posted a link to
>>my kinematics page at least twice. You don't need matrix maths you
>>can calculate the lengths or base positions directly using pythagorus.
>> For example if you take a triaglide, you know the position you want
>>the table to be in, the points on the rail where the carriage should
>>be are given by the intersection of a sphere with a line. i.e. the
>>possible positions of the struts other end with the rail. You will
>>get two solutions but you can ignore one. Also if you keep the
>>equation in its most general form you can account for rails not being
>>parallel etc.
>>
>><SNIP>
>>Bottom line, I think triaglides and deltas have real homebrew
>>possibilities, I've done the ground work, please run with it. BUT
>>hexapods specifically don't fit the bill for reprap or most homebrew.
>>
>>Cheers,
>>
>>Graham
>>
>>www.indoor.flyer.co.uk/kinematics.htm
>>
>
>
>