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ok got need for a machine to mainly be used to machine aluminium front panels

the main issue is although the machine does not need to be able to do a 20mm dia 10 mm deep cut in solid granite...

not posted here in some time , but just starting on a another 2 machines that i will be positing in new threads seperatly later

i recently discovered a interesting source of cheap lead screws...

as for the launch restrictions you need to find a country on the equator that doesn't empose them and is willing to let you launch from there , eather that or from a ship in international waters
...

not only that but the don't allow for you to use a computerised navigaition system on the launch rocket , or they would class it as a ICBM and it may be a threat

now putting aside the legal...

looks like you have a lot of info about what was used in the original
and looks like your sticking to the original parts ,
are you just making it remote controlled o are you going to make it...

the robo games look ok , but other than the combat catogory it only seems suitable for small robots , i guess if theres enough interest they may add a catogory for bigger robots in the walking /...

wow , quite a nice robot ,

i "cheated" a bit , i am using some of the old type potentiometers to measure the position , the type with a 6mm steel shaft and a brass bush
as was used in the old ...

not wanting to rain on your parade but

theres a number of problems and some rather large that will tend to differ from the animatronics methods and actual robotics
firstly animatronics designs...

well it was stored there , and wheeled outside for use ,
i now have a workshop although only 6foot square , it provides a perminant home for the cnc and a bench with a vice on it

like the idea...

yes a convayor would have a number of advantages , 1 it gives the boards time to cool so the components wont shift during production and a convayor based stacker packing unit would do the rest

a...

well seems i discovered a section for what i am doing

i built my cnc machine in order to make parts for the robot
although there is still a lot of hand made parts on it also

mainly needed...

not been in a position to do mutch with the machine at present
i split with my ex and have moved since then , still have to get the machine over here
and hope it fits in its new home
going to be...

well finished the main work on it , now trying to debug a stepper driver problem
(works fine driving 1 axis at once but fails to drive 2 at the same time ) think is a power supply problem
then...

well quiet here for a while ,

seem to be stuck waiting for bits to turn up here , but getting close to compleation of my cnc , did a compleate redesign of it , its got phisicaly bigger , had to...

the uprights i dont see as a problem as it can be corrected in the fixings used , more flex of the x sides i can see as a problem , as drawn i guess i would build it from steel box section welded...

wow that looks good , i like it

can see that you got problems with some of the bearings thay sort of run into the frame

maybe putting the bolt the other way around would give you a little...

:) supose but galv tends to chip and feel shure that if running bearings on it will cause it to flake off in the long run ( looking at old galv it seems to do this ) a heavy presure rolling on it...

ok turns out that it may not be a problem about the rust

looks like http://www.arenastock.co.uk/ do stainless steel in angle section
think there international so there may be a US site for them...

another long rant but,

i tend to agree with most points
speed of the machine though well ok 150 ipm well thats going to be determined by the steppers / servos used and the lead screws used...

i realy like the k2 machine
has it has been mentioned that the hardware store design cnc should machine aluminium i think that this should be included in the choice of available machining options ...

ok
clear up 2 points , i use unistrut because its reasonalby cheep and easy to work with , its strong about the same as 1 1/2" box section
its not junk , its modular frameing used for pipe and...

sorry for 3 posts in a row

Carl
i like the idea for the slides

im just wondering if they would be upto a machine cutting aluminium ,its the single bearing on the outer edge of the truck ,...

yes any help here is welcome , and no i dont think any boundries have been set for this machine yet , other than it should cut aluminium , mdf and ply
although i do think that if its going to be...

ok
:)

well i have not posted here for some time , i seem to have been following the hardware store design , and have taken a different route with my design
see http://www.whipy.demon.co.uk
i...

well the steppers you mentioned are 6 wire and look like unipolar , the driver is a bipolar and the steppers are 3v ones so you would need large dropper resistors to correct the voltage ,(((edit yes...

ok rough 3d drawing of it attached

the box would be hollow box section , the two bits running parallel are mdf
and the bit sticking down is the cross suports of the tortion box also mdf
the...

ok
sorry for another dxf in 2d
but i do seem to prefer the idea of using box section rather than angle iron

trying to use the dfx to show how it could be posable to mount it easy without the...

interestingly the quality of the material depends on the store , could say the same in some shops about ply and mdf sheets being warped and not square , like most shops you would buy good items not b...

ok , well i seem to be getting on ok with a design using unistrut

about half way though the controls
and waiting for some draw slides so i can finish the x axis

should be fully operational...

ok hope this will be better

in the picture the piece of wood represents the torsion box , the block of aluminium (with the hole in the middle) the support piece
and the white angle iron the...