Retrofitting a 1986 Maho MH400E

hanmon wrote: Hi drimaropoylos,
I adjusted the wedge on the X-axis.
Measured the original unmachined spacer to have 10,48mm.
Made a second test-spacer out of a tube and turned it down to 10,40mm and 10,32 which was enogh.
Turned the original spacer down to that 10,32mm then.
According to the manual a spacer reduction of 0,13mm minimizes the play about 0,001mm,
whatever that means and how they measure that.

This is what you have adjusted?

yes.
The drawing looks different in my documents.
Will post a picture tomorrow.

I still have not figured out a way to get a digital read out on the screen showing the position of the rotary table. Mine also has the rod271 encoder. My machine is a mh600c and I am running a 7i77, 5i25, and the original servo drives. I got some documentation on the rod271 but the wire colors do not match what maho used. Don't want to connect wrong and fry encoder. Need help with wiring and ini please.

Hi Mccartymachine1
Am sorry I can't answer your question.
My thoughts are it would help others , who may have a answer, if you could post your ini. file an the ROD 271 doc. I think the ROD 271 has TTL output so should be able to wire directly to your 7i77. Meaning that it doesen't require a Exe-Bd as your Heindehain scales do. Your documentation will note what the TTL voltage level is. Might be useful to get a Photo of the dissembled connector showing the pins an pin wiring. Darn pastel colours an OEM parts can be a bother.
Also I guess you may want use of the index - reference mark and how to off set it for homing. Especially if the rotary table is servo controlled.
What are you doing to cause the table hydraulic brakes to release? If the rotary table is servo controlled then might be worthwhile to also include your HAL file . What user interface are you using ?
What the heck throw in a photo of the rotary table too ! Please
Stay warm
Bob

P.S. Forgot to mention -include a MAHO schematic section showing the Rod wiring. Don't think they used the differential TTL signal , that to me is just asking for trouble. Could have been due to how Philips control boards were designed.

drimaropoylos wrote: It is a MH600E, the new ball screw is from a MH400E x axis. Exactly the same dimensions for y axis of MH600E
John

That is useful to know. Thanks.
Mark

It seems to be I have different manuals,
so I took some pictures of the related pages.

ROD-Encoder wiring, see page 7:

in german:


B-Axis and universal table:




Adjusting BT-40 tool clamp:



Adjusting the wedges: