Hi all,
I just want to show , maybe someone like to see those thinks :)
of course indexer works fine :-) all this has costs about 500$

some short videos :
http://d.turboupload.com/d/1388217/MOV04498.wmv.html

I have 2 more, but turboupload seems to working wrong :(

Pit, I'm impressed! Well Done. Do you use a foot pedal operated cylinder to set the brake? And a solenoid to hold it?... I'm guessing it could be controlled with codes M8 and M9 tied to the coolant pump

http://d.turboupload.com/d/1391043/MOV04499.wmv.html
http://d.turboupload.com/d/1391068/Mov04500.wmv.html

the brake is a bike hydraulic brake , I just use it with air pressure and controll with my electronics, this is enough to hold a little backlash for my light milling. The indexer is connected to haas machnine via second serial port.

I like it. That is a brilliant little piece of work there.
Is that turboupload.com a safe place? It makes my Firefox act up. I can see the countdown to wait, at the end of countdown a window pops up and nothing.

every of my firefox version didn`t have those problems, if you wish I can put on other server.

I like the homebrew indexer, very nice.
I'm curious about the electronics side of your unit.

I like the homebrew indexer, very nice.
I'm curious about the electronics side of your unit.

thanks , what do you wish to know ?

it is ATMEGA8 couse 7bit transmision (hardware), and UHU driver for the DC motor side.

congrats on a very nice piece of work

Hi Pit
I think this is a really cool project, and I would like to build a similar indexer for my Haas mill with a Vertex 150 and Uhu Driver
is it shure that for turn the indexer on the Haas control put in the angle (a180) and then the indexer turn 180°
Can you explain how exactly you connect the Uhu Driver to the Haas Control.
Are some schematic aviable for your electronic adapter (HaastoUhu)

thank you very match

Hi, no , my schematics are "stone age" I am not so good in electronics , I can send you a protocol , if you know what a rs232 frame is , then you probaly know how to do the electronics.

Looks like your video links expired.

.

Is it shure that for turn the indexer on the Haas control put in the angle (a180) and then the indexer turn 180°

How do you reference the Indexer to Zero

the indexable axis is represented by "C" letter , to turn the axis you can use G90 or G91 and Cxxx.xxx , you can attach up to 4 different indexable axis at the machine.

My axis doen`t support indexing , the job doesn`t require this function.

i have read in my Haas Manual and find how Programm to turn with C over second RS232

can you turn with C comands from the Haaas control?

i not andestand what you exactly mean with:

"My axis doen`t support indexing , the job doesn`t require this function."

i have the same hass mill and would like to build an indexer,making the indexer is no problem for me,but how to hook it into the hass i have no idea,how did you do it with yours?
thanks,steve

walter , sory for the indexing missmatch , i meant : my axis doen`t support indexing as home finding , finding zero position, naturally it indexing in degres - rotating.
what do you meant with turn ? turn like turning on a lathe ? i don`t think it is possible.

sorcheror , it is very easy , imagine when you want to turn the axis 45* , you type a Gcode "C45", the haas control sends via rs232 "ZS45." and "ZB" for begining :) all the time the haas controls ask the rotary controller for the actualy position by asking "ZP" you need to answer "Z***.***" with you position.

Or it isn`t easy when you are not electronic familiar :(

Thank Pit

With turn y mean rotate to

I have the same problem that Sorcheror have "making the indexer is no problem for me but the Electronic Interface is the Problem"

i can build electronic only when i have a schematic, i can not engenering Electonic things i am only a Electronic Kit assambler,
The Uhu driver its no Problem to assamble for me with al the instructions in the internet.

my Question is now do you have some schematic from the Rs232toUHU Interface that i can build a similar pice

thanks

few my old videos

YouTube - haas cnc home made indexer
YouTube - haas cnc home made indexer - 2

I attached my schematics and board ( eagle format ) , but remember :
- you made it at your own risk
- the board has few errors
- the schematics part of changing levels from rs232 to ttl can be changed to max232

Thank you Pit for the schematics

Can you explain me for what the pins

X3-1 and X3-2 (O1) was for?
X4-1 and X4-2 (O2) was for?

X5-1 to X5-4 (Index) was for?

thanks

O1 and O2 are future outputs , one is for the break solenoid (12V) and the second was for something thats comes in future.

X5 has 2 inputs , that was for homing the axis , one from index signal from encoder and second for a mechanical switch , for homing like in haas machines, but after so long time this was never implemented.

I was unable to make a "faster" and better software , so I broke up.

Thank you Pit

you write:- the board has few errors
can you say what for errors?

thanks

there are few unrouted signals , if you know eagle you`ll probally see them.

Thank you Pit

you write:X5 has 2 inputs , that was for homing the axis , one from index signal from encoder and second for a mechanical switch , for homing like in haas machines, but after so long time this was never implemented.

how exact do you homing the indexer now?

thanks

I do not :( I use the axis for only one type of work ( visible on videos ) and this doesn`t need homing. I have no need for better axis.

thank you Pit for the Quick Reply

you write:O1 and O2 are future outputs , one is for the break solenoid (12V).....

where do you now connect the solenoid for the break or work you without Brake?

thanks

O1 is for the brake I sometimes use it , O2 was used for the debuging and ligths when a frame error detects, and I still have no idea for other use or O2 so I leaved as is.

thank you Pit

with the schematic from you can i now easy build the interface thanks very much

to complete the interface i need the source code of the atmel?

is possible to post the source for me?

thanks

yes, I`ll post the source and hex at work, maybe someone will do upgrades ;-)

yesterday I recive my harmonic gearbox , now I see hope for my 4th axis, zero backlash :)
I attached some videos from youtube , and my gearbox photos.

YouTube - Harmonic Drive Zero BackLash Gearhead
YouTube - HD gearhead

Cool video.

That first video looks like one of the fixture tables I worked with back in 1997, we built tractor trailer suspensions, is that a mig robot I see (in the background)?


.

it probably is , according to comments it is a welding station.

I attached my code for serial axis.

thank you Pit for the source

now i wil start to build the interface

one Question
its possible for you to make a pics from your assembled interface from the top and from solderingside that was wery usefull for me to build a similar pice

thanks