5-axis self build?

[rab]

ebay,

http://cgi.ebay.co.uk/ws/eBayISAPI.d...tem=7514383803

Rab,

Rainnea CNC
www.rainnea.com/cnc.htm

[mikejkd]

Those are the ones I have on the way. I guess I just did't think they were that small after the large diameter is cut.

[Calico]

is it correct it has .5degree backlash ?

[rab]

The backlash seems to vary between units,

The ones I got had quite a bit of backlash in the reduction gearboxes integrated with the motor.

Rab

Rainnea CNC

[Calico]

how is your harmonic gear ? have you got it ? WIP ?

rud

[rab]

Hi,
the units are here, I just need to machine up motor adaptor and mounting plates

Rab

[mikejkd]

What do they look like? Any pics?

[Calico]

yeah any pictures ?
i wonder how big it is ?
how much you bought it and where ? ebay ?

I bought mine quite expensice US$ 200 1:50 ratio.

rud

[mikejkd]

what kind is yours for $200?Any pics of that one?

[Calico]

here it is

[mikejkd]

Who makes that one? Do they have a smaller one?

[Calico]

well the problem is I do not know what brand it is.
I saw smaller than this but longer.

I need short for my 4-5 "spindle" axis.

it's japan made, the bearing brand says NSN or something, defenetly not NSK.

if anyone knows who made it let me know, I just want to disassable it but I need the drawing to do that, don't want to damage the bearing.

rud

[mikejkd]

Where did you see them? What site?

[Calico]

i was in singapore, it's where I got mine from.
I don';t think he sell it for public.
rud

[rab]

http://www.harmonicdrive.de/en/2_3_1.htm

I paid £400 for a pair of new, old stock, size 20, 50:1 ratio

Rab

[mikejkd]

Any progress on your new head?

[Calico]

I'm busy making the body frame , the head going to be the last.

check this out
http://www.5-axis.com/

does anyone has any clue what''s inside ?
any idea how to make it ?
any drawing ?
does they use harmonic gear ? I don't think so.

they said it's servo driven.

rud

[Switcher]

Calico, Cool Link! Did you notice in the videos that they didn't do any actual cutting? (Just followed the Cutting path/Contour, of a part already cut) I want to see chips Fly!

[HenryCNC]

Ernesto,

Most of the clay/foam mills I have seen in design studios are 3-axis horizontal arm type machines. GM has machines made by Tarus... maybe a google search can yield some pictures. Basically, there is a track in the floor that runs beside the car (front to back). On this track is a tower (Z axis) and from that tower a horizontal arm that runs cross-car (Y axis).

The spindle is a seperate router looking thing. It is set to different angles - so the software creates different files depending on the angle. Only one side of the car is done at a time. They have the luxury of having a machine on each side, but you may have to rotate the model or have a duplicate floor track.

Just my two cents.

Henry

[turmite]

http://www.tarus.com/styling

This site is well worth the visit. While I am here, is there anyone that has any experience with 5 axis that could spend a little time with us here. I have several questions and need some input from someone who's been there.

Mike