[valio]

Looking for not expensive way to construct 5-axis head.
So need photos and drawing materials with internal kinematic
plans to consider some real examples of commercial 5-axis
heads like a TRI-TEACH, (not sure that Doughty Drive), etc.

Please!

If some own such compact (not heavy-duty heads),
do a couple shots and sent it to me ..

Thanks a lot.

[metalworkz]

Hello Valio,
I have been watching your thread here and don't see any responses so far. I am also working on a design to make a 5th axis head for my next CNC build. I started with a basic rectangular shape for the head but would really like to do something more like the Tri-Tech design with a more streamlined appearance.
Maybe it will be good to start with the simple shape and then try to improve on it after it is done and I have a working prototype? Have you done anything with your design or started build it yet? If I get started on mine I will post pictures and details as I go with the build. Here is a snip of what I have drawn so far:



Regards,

[metalworkz]

Wow,
I'm surprised there isn't more people interested in the construction and use of a 5th axis B/C head. I have seen a couple of 5th axis builds here on the zone but no in depth 5th axis B/C head ideas. Maybe the lack of reasonably priced 5th axis software does not help.

[FPV_GTp]

Wow,
I'm surprised there isn't more people interested in the construction and use of a 5th axis B/C head. I have seen a couple of 5th axis builds here on the zone but no in depth 5th axis B/C head ideas. Maybe the lack of reasonably priced 5th axis software does not help.

have a look at this build http://www.cnczone.com/forums/showthread.php?t=98554

cheers

[louieatienza]

Wow,
I'm surprised there isn't more people interested in the construction and use of a 5th axis B/C head. I have seen a couple of 5th axis builds here on the zone but no in depth 5th axis B/C head ideas. Maybe the lack of reasonably priced 5th axis software does not help.

There is... we just keep it under wraps!

Reasonably priced is a relative thing. If it's your livelihood, you'd factor in the return on your investment; also some software vendors provide financing, but most likely mainly to corporate or business accounts. If it's just your hobby, well then you need deep pockets!

[metalworkz]

There is... we just keep it under wraps!

Reasonably priced is a relative thing. If it's your livelihood, you'd factor in the return on your investment; also some software vendors provide financing, but most likely mainly to corporate or business accounts. If it's just your hobby, well then you need deep pockets!

Hello Louie,
I am looking to make the 5th axis for my next hobby CNC machine, so it would help to have deep pockets but that is not so in my case. If I had deep pockets I would simply purchase something available like say one of the Doughty B/C heads. I will just have to design and build my own along with the CNC router/mill in about a 48" x 48" size. I had other ideas regarding the design of the machine itself to perhaps enable a smaller footprint machine to do larger work but have not decided which way I will go with it. I have the bulk of a small B/C head designed from scratch so I will just need to start cutting the parts and see if it all works out. I will probably see about getting the B/C parts drawn in inventor so I can better see how it will work.
I have kept my intentions to build the 5th axis mostly to myself also but I figured there isn't a better place to network these ideas and see what the rest of you are doing along these lines. Thanks for replying to the thread, and I hope some more people will respond with their ideas and advice.

Regards,

[louieatienza]

Hey Wes...

I have a few drawings of ideas for a B/C head. I would like to contain either my steppers or servos within the unit itself, so it's not sticking out in the way, and use timing belts for gear reduction/turning each axis. Only thing is, I'd have to make the gantry tall to accomodate everything, as well as keep the Z stiff enough with the longer length...

[kanankeban]

Wow,
I'm surprised there isn't more people interested in the construction and use of a 5th axis B/C head. I have seen a couple of 5th axis builds here on the zone but no in depth 5th axis B/C head ideas. Maybe the lack of reasonably priced 5th axis software does not help.

Im interested in building one...please drop me a line, maybe we can work together or gather other people in making a cheap efficient design that can work for a DIY project...
Kindest Regards,
Hector

[HereinCS]

Im interested in building one...please drop me a line, maybe we can work together or gather other people in making a cheap efficient design that can work for a DIY project...
Kindest Regards,
Hector

Count me in

[metalworkz]

Hello guys,
It is good to finally see some more posts to this thread showing more interest in building a B/C head. I guess I need to get more motivated and start cutting some prototype parts for my design. I will be glad to work along with others and perhaps by sharing our ideas and findings we can accomplish the task with better results? I am limited when it comes to cash outlay, but normally have a lot of time to devote to design and working drawings or toolpaths.

[asuratman]

Any body here know the price for 5 axis tritech, doughty or colombo? Please share. Thanks.

[Master of nun]

HSD 6.5kw head 90kg and an asking price of around 100K


anyone with some good ideas....different gear reduction, cable routing,limit switches etc for b/c heads?

I searched the forum for ab, bc for hours with very little result when I started building mine.

Bartus has used automotive bearing assemblies in his machine...very affordable

[asuratman]

Wooow, very expensive. I thought its below 10K usd. I will do it Bartus way in the future, it looks like affordable. Thanks.

[Master of nun]

the trouble with using the automotive bearings is that a bearing is required on both sides of the spindle and this eats up the Z axis height.
This was my main reasoning in spending up big on good quality high precision bearings.

[Master of nun]

Chad's machine from the artsoft forum

I'm not sure but it looks like he's used indexing heads from a mill or at least used the idea for inspiration.




also here is a link to the harmonic drrive actuators, I f i had my time again.....these are WAY too cool
http://www.harmonicdrive.net/products/actuators/

servo, reduction and bearing all in one, would make an amazingly compact design.....hate to think of the price though (nuts)

[Master of nun]

http://www.cyber-cnc.com/rotary_indexing_tables.html

Check out this stuff from India, Specs look good
Might be a lot cheaper coming from India also.

[LN-JET]

That looks like stuff from Isel http://www.isel.com/en/ , and if so, not very cheap.

Lars

http://www.cyber-cnc.com/rotary_indexing_tables.html

Check out this stuff from India, Specs look good
Might be a lot cheaper coming from India also.

[Master of nun]

There's a doughty setup in the zones clasifieds if anyone is interested

http://www.cnczone.com/classifieds/s...p?product=3970

[metalworkz]

Hello,
I saw the add the other day, and probably not a bad deal if you have the $$ but I do not fit in that category. I will have to try and scrounge and build my own. I hope someone else is more fortunate and can use the Doughty drive on sale.

[mcphill]

Sounds like a Harmonic Drive to me...