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it will have less of a chance of binding when traversing in the x axis, and drive it from the center with the ballscrew/leadscrew? of the gantry. But It can be done, cant it? Jim: The machine is

, I plan to any A couple of years ago, before being donated a full sized mill, I posted a circuit on metalwebnews about how to build a head position sensor with a dual element photoresistor and a

Another possibility. You may find that there are two wires joined at the center tap. If so you can separate them so that you have two sets of secondary windings each of 30 VAC. You can then connect

Hi List! Here is a link to Poor Man's Digital Read Out - 2 axis PMDRO http://www.luberth.com/plotter/pmdro.html I downloaded it and tried if it works. For me it didn't:-( Has ahyone else tried it?

Matt's circuit will work very well. The output of this "push pull" circuit is totally identical to using a full bridge rectifier. Bob Thomas

Hi All, I have Hitachi Seiki CNC Milling m/c type VA 45. This machine have Automatic Tool Change facility. I need help, if you have operation manual for this facility, please give us information.

Matt, Been a while since I have noticed you posting. Hope all is well? So if I connect as drawn what is the ratio of the ac voltage to the resulting dc voltage? I would have to assume that it is

I'm going to assume you want to make a DC supply: (horrible ascii scematic follows - view in fixed width editor like emacs) ----|>|-----------+ ) | ) | ) | ---o MINUS_DC +---o PLUS_DC ) | ) | ) |

Will the lead error in the thread of an acme screw cause much problem when driving with two screws on the x axis ? dakota8833 wrote:

I have a transformer that is center tapped on the secondary. Voltage from the center tap to either end is 30 v. from end to end it is 60 volts. I know that if I want 60 volts I just connect the ends

Marv, I had a similar problem over the weekend. The remedy was to significantly decrease feed and increase RPM when plunging. This gave more time and force to throw the chips away from the cut. This

Jon, Thanks for your input. My spindle is tight, so are the bearings, and the 1/4" end mill is held in a pretty new collet. When I tried plunging the end mill through an 1/8" wall aluminum extrusion,

Message: 24 Date: Tue, 22 Oct 2002 17:12:53 -0500 From: CL <datac@...> Subject: Re: Re: CAM Software Options? I too, was not all that impressed....well, other than the introductory pricing.

I did some researching on the 'net...it seems at one time dynacadd was a pretty good CAD program, but the company went belly up. It also looks like it is only CAD and NOT a CAM package. I politly

Marv Frankel wrote: A properly sharpened drill bit will not do this except on very thin sheet. A dull drill bit can sure do things like this. End mills generally make VERY round and smooth holes, even

alan@... wrote: Center-punching holes seems to get me within .01" if I'm REAL careful! By drilling a starting hole with a center drill (like used on a lathe) and then drilling with standard

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the CAD_CAM_EDM_DRO group. File : /master.zip Uploaded by : sdiken.rm

Definitely no drivers needed. You just have to make sure it is on a clear address that nothing else is using and that the address is enabled in BIOS. Sometimes (frequently) Compaq does weird stuff

Thank you. Actually my giant step was admitting that I could not learn this software from the manual and playing around with it. Once I went to the source (i.e. Fred) all of my troubles disappeared.

Hi Group, Sorry about another basic question. Are there any hazards replacing bearing in a stepper motor? Regards Bob Thomas