[vph]

The right side is the normal mounting location of the cncfusion kit which is very popular.
There have been a few people that have swapped it to the left.
Ellik did his own mount on the left side and then a very nice rear mount.
http://www.cnczone.com/forums/bencht...onversion.html
You won't need a gas strut if you use a decent motor/driver combo like the 381oz/in and g540
or what Don used on his.
Hoss

Thank you Hoss.
Obviously I haven't searched good enough. Now I know there is nothing wrong with the idea.

[hoss2006]

Thank you Hoss.
Obviously I haven't searched good enough. Now I know there is nothing wrong with the idea.

You're welcome, Z axis designs for the x2 probably number in the hundreds if you back back far enough.
Hoss

[zaneiel]

I just realized how long its been since the last post here so by the time you get around to replying I will probably have done the drawings myself anyway hehe. o well thanks again for all your hard work you give us inspiration

original post:
dj, I just wanted to take a minute to say thanks for sharing all your work. I just bought my LMS mini mill today and expect it sometime next week. I got my steppers and kit today and I was motor tuning in Mach3 (steppers are so frigin cool!).

Anyway I am excited to make my little machine even better.
Do you think i could get a copy of your CAD drawings to save myself some time replicating them? I realize you have contributed so much allready and we appreciate all you have done!

Thanks!

Zan

[vph]

Hi Don, I'm trying to follow your design. Would you mind sharing the saddle modification details?

Regards,
Filip

[robcole]

Hi,
I am starting on my CNC conversion of the Sieg SX2L mill which I understand is the same as the LMS High-Torque mill.
Does anybody have 3D CAD drawings of this mill available?
I need to convert all dimensions/drawings into metric and change some of the components (ballnuts etc.) as the ones used by Don are not avilable in South Africa.
Your assistance is very much appreciated.
Best Regards

[Fastest1]

Have you tried GrabCad?

[robcole]

Yes I have tried GrabCad, but it seems that the only 3D models are for the smaller machine (SX2), nor the extended table version (SX2L)

[GG67]

Try GrabCAD again, I think you will now find what you're looking for.

Search: LMS 3900

I can not guarantee all parts will be dimensionally the same as your machine.

Enjoy & good luck

[robcole]

Hey GG67,
Many thanks that worked.
Having taken some quick dimension checks - Yes the LMS 3900 is dimensional identical to the SX2L.
Best Regards

[J S Machine]

Here's some pictures of the spacer installed on the mill. The basic design of this mount is fairly simple and easy to make. The trick to it is that it tightens from the center instead of with bolts on an outside flange. There are two brass wedges located in the middle which when tightened push the two halves of the spacer together with several thousand pounds of force. The rear half of the spacer is slotted which allows the front half to be slid up so that the bolts that hold the head to the spacer can be accessed as well allowing the top cover to clear the rear part of the head so it can be rotated. The main reason I designed the mount this way was not so the head could be turned so far but rather because of it's small profile which won't interfere with future plans I have. Since I'm finished with this now I'll start concentrating on finishing the plan set. The next phase will be the power drawbar, I already have the design in my head, just need to draw it up and workout a few details, should be interesting...

~Don~

~Don~

Don,

Is there any specific reason you designed this spacer plate system behind the head? I understand what you are saying about how it tightens from the center instead of with bolts on an outside flange, but I'm just curious as to what its true advantage is. I am in the process of using the plans you provided to cnc my 3900. I have made the majority of the parts, but I have been hesitant to build the parts related to this spacer system. If I don't really need it, Im not going to build it..At least not right now anyway. Will the machine work okay without this system, or is this something that I need to do to get some benefit that I am unable to see from where I am sitting?

Also, please note I have sent you a pm with a few further questions. I'd appreciate your response!

John

[David023]

Hi Don

I know that your article was originally posted around 5 years ago,
but I've just found it and I am building the board required to
connect to the control board. When I opened the box and removed
the daughter board, I was looking for the connections for the FDB
IN, DIR OUT, SPD OUT as well as the points to connect the +12V
and Ground. There do not appear to be any convenient pins that I
can solder to, and I seeking your advice on whether I should
connect to the underside of the PCB using the relevant solder
pads.

The photos that you have provided in your article show these
connections made on the component side of the board, but there is
nothing I can use unless I solder to the legs of the components
themselves. Have I missed something here, or is my board a
later/earlier version than the one that you illustrate in your
article? My board is labelled XMT-DRV-500C (3).

I would be grateful for any advice that you can give me.

Regards

David Swain

[David023]

Hi Don

I know that your article was originally posted around 5 years ago,
but I've just found it and I am building the board required to
connect to the control board. When I opened the box containing the control board and removed
the daughter board, I was looking for the connections for the FDB
IN, DIR OUT, SPD OUT as well as the points to connect the +12V
and Ground. There do not appear to be any convenient pins that I
can solder to, and I seeking your advice on whether I should
connect to the underside of the PCB using the relevant solder
pads.

The photos that you have provided in your article show these
connections made on the component side of the board, but there is
nothing I can use unless I solder to the legs of the components
themselves. Have I missed something here, or is my board a
later/earlier version than the one that you illustrate in your
article? My board is labelled XMT-DRV-500C (3).

I would be grateful for any advice that you can give me.

Regards

David

[georgeb222]

I too would like to build the spindle control board posted by djbird in post 129 of this. That post was 5 years ago and I imagine others have built or considered going that route to control the spindle in the ensuing years. Please post comments and results.
My research seems to find Don's method to be quite direct as it uses the SX2 motor control board the XMT-500c and just remote controls it.

Thanks, George

[lixingwen1987]

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TEL：+86-0379-65112328

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Email:[email protected]

Web:http://www.DRZbearing.cn
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[Rescue35]

I tried a couple of different methods to control the spindle via Mach3. Building my own board from instructions found here on the Zone did not work. I bought the LMS control board and it sort of worked (the spindle never completely stopped) for a while until the drive eventual burned up. I am currently running a DC treadmill motor with speed set via a potentiometer. Future plans are to install a 3 phase 12000 RPM spindle motor and VFD. I should have done that first.