Search found 97 matches

by MAX THE MILLER
Tue 23 Dec , 2014 15:34 pm
Forum: VR Milling - All Versions
Topic: Arc converted to straight lines.
Replies: 32
Views: 15400

Re: Arc converted to straight lines.

In the end I wrote my own G Code for the part using tool offsets and arc drawing commands. The actual cutting part is only about five lines which is far less than VR Milling produced when importing the DWG file. The part was successfully cut and has a nice smooth arc.
by MAX THE MILLER
Sat 20 Dec , 2014 16:25 pm
Forum: VR Milling - All Versions
Topic: Errors in CNC Programming Help File.
Replies: 4
Views: 3637

Errors in CNC Programming Help File.

The example help file for the cutter compensation commands G40, G41 and G42 doesn't contain a G40 command. I tried to modify the example programme to suit my own requirements and couldn't work out why I kept getting an error message. Inserting a G40 command cured this. Also line 0030 appears to be w...
by MAX THE MILLER
Fri 19 Dec , 2014 15:54 pm
Forum: VR Milling - All Versions
Topic: Arc converted to straight lines.
Replies: 32
Views: 15400

Re: Arc converted to straight lines.

No matter which boxes I tick VR Milling converts the 8 inch radius arc to four straight lines.

I'll have to try writing my own G Code.
by MAX THE MILLER
Thu 11 Dec , 2014 23:42 pm
Forum: VR Milling - All Versions
Topic: Arc converted to straight lines.
Replies: 32
Views: 15400

Re: Arc converted to straight lines.

The help files provided with VR Milling 5 are very good when it comes to G Code. I find I can get on OK just knowing G0, G1, G2 and G3. I suspect very few people actually write G Code directly these days, just as no one constructs a web page by writing directly in html. Instead they'll use some kind...
by MAX THE MILLER
Thu 11 Dec , 2014 21:53 pm
Forum: VR Milling - All Versions
Topic: Arc converted to straight lines.
Replies: 32
Views: 15400

Re: Arc converted to straight lines.

Thanks for your reply. Before posting I actually plotted the G Code on graph paper. Old fashioned, but it works. The G2 commands in the .fnc file are actually used to "ROLL" the 3mm diameter cutter round the corners of the part. Hence I=1.5, half the cutter diameter. Without these G2 commands the cu...
by MAX THE MILLER
Thu 11 Dec , 2014 17:19 pm
Forum: VR Milling - All Versions
Topic: Arc converted to straight lines.
Replies: 32
Views: 15400

Arc converted to straight lines.

Using VR Milling version 5.59.0.666 with Triac PC. I have attached .DWG and .DXF files for the same part, an oblong plate with one side being an arc of 203.2 mm (8 inch radius). If I import either of these files into VR Milling, use it to create a .fnc file and then cut the part, the machine cuts fo...
by MAX THE MILLER
Sat 06 Dec , 2014 13:57 pm
Forum: VR Milling - All Versions
Topic: Setting work piece zero VR5/Micromill
Replies: 2
Views: 3109

Re: Setting work piece zero VR5/Micromill

I use VR Milling 5. When transferring the machine's X, Y and Z coordinates to the work offsets menu the default is to transfer the coordinates without changing them, so in the case of X and Y the work offsets will be aligned with the CENTRE of the cutter. The boxes to tick are along the top right of...
by MAX THE MILLER
Fri 05 Dec , 2014 11:30 am
Forum: VR Milling - All Versions
Topic: "Advanced" option?
Replies: 1
Views: 3010

Re: "Advanced" option?

I can answer my own question. Selecting "advanced" gives additional options in the drop down menu.
by MAX THE MILLER
Fri 05 Dec , 2014 11:26 am
Forum: VR Milling - All Versions
Topic: Deleting work offsets.
Replies: 1
Views: 2693

Deleting work offsets.

In the work offsets window, right clicking on an offset description gives a drop down menu with an option to deleted the offset. This option doesn't work and nothing happens. The "red cross" icon does delete the offset description though. Just drawing this to the attention of the software developers.
by MAX THE MILLER
Wed 26 Nov , 2014 22:55 pm
Forum: VR Milling - All Versions
Topic: "Advanced" option?
Replies: 1
Views: 3010

"Advanced" option?

In the "Offsets / Tooling" drop down menu there's an option "Advanced" which can be ticked and unticked.

Can anybody tell me what this option does?

Thanks.
by MAX THE MILLER
Mon 27 Oct , 2014 14:38 pm
Forum: VR Milling - All Versions
Topic: Problem drilling holes.
Replies: 9
Views: 6396

Re: Problem drilling holes.

Thanks for the quick response.
by MAX THE MILLER
Mon 27 Oct , 2014 11:46 am
Forum: VR Milling - All Versions
Topic: Problem drilling holes.
Replies: 9
Views: 6396

Re: Problem drilling holes.

I see that it's now two years since I reported this problem.

Is it likely to be fixed?
by MAX THE MILLER
Mon 27 Jan , 2014 14:00 pm
Forum: Denford Classifieds
Topic: WANTED. Collet and end mill holders.
Replies: 1
Views: 1228

WANTED. Collet and end mill holders.

I'm looking for ER25 Collet Holders and End Mill Holders to fit a Coventry Easy Change Chuck.

Thanks.
by MAX THE MILLER
Wed 22 Jan , 2014 15:03 pm
Forum: VR Milling - All Versions
Topic: How to create the code for this particular file?
Replies: 1
Views: 2226

Re: How to create the code for this particular file?

I think it's down to the fact that any area selected must be made up of COMPLETE entities. The outer rectangle is made up of four complete straight lines, so can be selected. The circles are each complete circles, so can be selected. Other rectangles are made up of both complete straight lines and p...
by MAX THE MILLER
Wed 08 Jan , 2014 22:58 pm
Forum: VR Milling - All Versions
Topic: Z access retraction problem.
Replies: 2
Views: 2546

Re: Z access retraction problem.

Thanks for that. I've set Z to 0 in the tool change parameters and it all now works OK. When I have the machine parameters window open and press F1, I get this message:- "The fields in this option should only be edited by your CNC machine Technician or Supervisor. Please refer to the separate parame...
by MAX THE MILLER
Tue 07 Jan , 2014 19:42 pm
Forum: VR Milling - All Versions
Topic: Z access retraction problem.
Replies: 2
Views: 2546

Z access retraction problem.

Triac PC manufactured 1998. Upgraded to USB with BI00434Y NES003-501 (RACK) card. VR MILLING V5.54. Machine selected Triac VME. Speed pot boxes ticked. ATC box unticked. VR Milling used to import a DXF file and produce an FNC file. The aim is to drill four 6mm holes in a square formation. Retract he...
by MAX THE MILLER
Tue 19 Nov , 2013 13:07 pm
Forum: EasiMill / EasiTurn
Topic: 1984 Easymill spindle motor, 440 volts only or dual voltage?
Replies: 13
Views: 6305

Re: 1984 Easymill spindle motor, 440 volts only or dual volt

By all means try it, but remember that because of the way this motor is wired internally you'll need to connect the phase wires from your VFD to U1, V1 and W1 with no straps.
by MAX THE MILLER
Tue 19 Nov , 2013 12:31 pm
Forum: EasiMill / EasiTurn
Topic: 1984 Easymill spindle motor, 440 volts only or dual voltage?
Replies: 13
Views: 6305

Re: 1984 Easymill spindle motor, 440 volts only or dual volt

The motor appears to be switchable between 4 and 8 poles, something I've not come across before. Internal and external wiring is probably as shown in this link:- http://www.elprom-gem.com/en/specials/two-speed-three-phase-motors.pdf. The lower set of diagrams are applicable to 4/8 pole motors. Looki...
by MAX THE MILLER
Tue 19 Nov , 2013 12:17 pm
Forum: EasiMill / EasiTurn
Topic: 1984 Easymill spindle motor, 440 volts only or dual voltage?
Replies: 13
Views: 6305

Re: 1984 Easymill spindle motor, 440 volts only or dual volt

I'm afraid I cannot fully answer your question. The electrical wiring diagram for the Easymill can be downloaded here:- http://www.denfordata.com/bb/viewtopic.php?f=34&t=3420 Looking at sheet 2. When HIGH speed is selected contactors C1 and C2 are operated connecting the motor in delta. When LOW spe...
by MAX THE MILLER
Tue 19 Nov , 2013 1:52 am
Forum: EasiMill / EasiTurn
Topic: 1984 Easymill spindle motor, 440 volts only or dual voltage?
Replies: 13
Views: 6305

Re: 1984 Easymill spindle motor, 440 volts only or dual volt

Looking at the wiring diagram for the Easymill, it uses external star/delta switching for the spindle motor. This enables the high and low speed ranges to be selected. That accounts for there being six wires going to the motor rather than three and no brass straps.

As you say though, no inverter.