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Brand new Bosch drives for old Deckel NC /A machines

Martin P

Titanium
Joined
Aug 12, 2004
Location
Germany in the middle towards the left
I was chatting with Oliver and he mentioned he once bought all new Bosch TR drives, or to be exact a new modernized reproduction of the drive, from a company in Germany, a Mr. Methfessel:
Very hard to find that link I think, no marketing effort whatsoever.
Oliver already did this some years ago and it was not cheap.
On the cards there is no marking at all about who made them.
In parting out the FP4A, that I described recently, I also found one newer set of these axis cards and a newer style power supply board. With "newer" I mean a re-engineered card with mostly SMD technology. There seem to have been different iterations over time too.
I vaguely recall this being mentioned on this forum before ? No sure really, but did not Deckel Doctor mention something like this even way back?
I have my doubts that there are several places making new cards, but find it much more likely that Mr Methfessel has been making them all along and provides them to FPS and maybe others. He apparently does not do any marketing himself at all. And FPS would certainly be a volume customer. Hence also no marking or marketing, just guessing.
It would be interesting to hear from folks on the forum, who have replacement cards installed, about their experiences and pricing. If there are any.
I think the need may have actually decreased some recently, since so many machines are being parted out. But depending on price point and circumstance this may be very interesting to some.
Also the question remains if there are other offerings on the market.
 
The cards that come from a TR that I found cheaply on eBay. These are not the cards I purchased from the company mentioned above.
The pictures of these cards will follow in the next few days... because of Christmas
 
I have and have tested “new” servo drives that I have used in a mock up.
Never setup the entire machine as it was on my home FP3NC.
Now I am retired and have less time I will peruse this further.
Drives were current “ digital” AMC ( made in US) drives.
These drives are self contained. No need for a separate power supply, just connect the drive to the 165 v transformer output.
Drive have serial port connections that you connect to a PC , allows dynamic tuning using their software, has “O” scope to read the servo acceleration/deceleration curves. In all a pretty nice setup.
I made a single servo setup and ran it (X) axis. Worked fine.
This was not a plug in for the Bosch cards, but rather an all new install.
Need to get back to this one day.

Cheers Ross
 
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I have attached the pictures of the cards from "msrtec" which Martin described above.
I installed my cards in a MIKRON WF3 DCM with Heidenhain TNC150.
They are of extremely high quality....but the prices for a set were also very high.

I needed them because the original BOSCH cards were causing increasing problems and the controls were constantly malfunctioning.

msrtech-1.jpg
 
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The black cover is a gigantic heat sink that is screwed to another massive aluminum block below the black surface.
The power transistors are therefore extremely well cooled.
It is the block in the background
msrtech-3.jpg
 
As with Bosch, the card is equipped with an optimization card, which the producer tuned to me perfectly according to the servo motors for X/Y and Z and taking the age of the motors into account.
Mr. Methfessel is also very friendly, helpful and approachable over the phone.
msrtech-2.jpg
 
So to clarify:
First Bosch modernized their design and produced it sometime into at least the 90ies.
These cards are a one-to-one replacement. I am sure they were not introduced during the regular production of Deckel machines of that type.
Don't know when Bosch discontinued parts, they are not easy to talk to by mortals.
Then some time ago Mr Methfessel created a new design that replaces the Bosch cards and also combines the 2 drive cards required for each axis into a single double wide card. He also did the power supply card.
This is all plug&play.
Ross has mentioned just now and also some time ago that he investigated and made run an alternate solution that is not plug&play.
It seems neither solution is cheap, but it at least exists.
 








 
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