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I sure would like to see this Drive diagram. Finding cnc info
sources is very difficult. I can build one from a schematic.
Dan, is this available via web or e/m? regards, Rich Dean

(snip)

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.~ ~ ~~ ~~____~,~~ ~~~__
. \------ |OO|_[]_[]__\/O
. .|_CMRy_|-|__|________|_|.
.____oo__oo__--"O=O=O"=[]oo\\____________________________________
.--Colorado Midland Railway---Rich---cmsteam@....

Just ask Dan Mauch about it. He has pc boards already made up with the
layout and a description. He also has a full kit. Initially, I made my
own pc boards by engraving the copper clad boards on my cnc mill. Now I am
getting too busy and Dan already has the boards made up- so I bought one
from him.

Ericsson is going to stop shipping one of the chips that is key to this
design, so I suggest you talk to Dan before you delve too much into this.
They (Ericsson) have a web site- but I am sorry that I can't remember it
(www.ericsson.com??).

Dan
Nashville, TN.


At 10:24 PM 5/29/99 -0400, you wrote:

From: "R.Dean, Nr Atlanta, GA" <cmsteam@...>

I sure would like to see this Drive diagram. Finding cnc info
sources is very difficult. I can build one from a schematic.
Dan, is this available via web or e/m? regards, Rich Dean

(snip)

My favorite DIY stepper drive is the Ericsson design that Dan Mauch has
now. It uses 2 ICs and 8 mosfets to put out over 5 amps. Apparently, with
good design, and good shielding, good airflow, it should be able to put out
10 amps- I ran 9 amps for a little while, before roasting some mosfets.
Ask Dan about the 5amp boards/kits.

Dan Falck
Nashville,TN.

--
.
.~ ~ ~~ ~~____~,~~ ~~~__
. &#92;------ |OO|_[]_[]__&#92;/O
. .|_CMRy_|-|__|________|_|.
.____oo__oo__--"O=O=O"=[]oo&#92;&#92;____________________________________
.--Colorado Midland Railway---Rich---cmsteam@....

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welcome to CAD_CAM_EDM_DRO@..., an unmodulated list for the

discussion of shop built systems in the above catagories.

I sell a silkscreen Printed circuit board that makes it easy if you want to
do it from scratch. But I also have a complete kit. See my webpage at


Quite a few people have built them. Talk to Tim Goldstein on this group. He
can tell you what he thinks about the 5 amp kit.
Dan