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Messages - Machtank

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1
Mach4 General Discussion / Re: Screwcutting issue under Mach4
« on: May 15, 2020, 11:02:00 PM »
Threading has been working well for a while now (Plenty of variety of threads produced), so the PWM board change was the total solution.

Having said that, Constant volume cutting is a little bit strange. First cut fine, but others way deeper than expected.
Expecting 10 cuts, I get 5 (First cut OK at 1/10 of total volume). I do not think I have missed anything. Mach3 Does this type of cut correctly.
Mach4 - Constant depth cutting is Working fine.
Constant volume is my preferred option, so currently using G32.

2
Others / Re: Ezilathe - Tools for the CNC lathe
« on: May 14, 2020, 01:06:53 AM »
This is Ezilathe Version 1.7.2
Download, Unzip to C:\Ezilathe or a temporary directory (if updating), and copy the files required to the C:\Ezilathe.
This version has many changes / corrections that should help in the generation of G-code for your lathe.
Please follow the PDF (Separate download) to assist.

Mach4 code can also be produced, and is now mostly tested.
Screwcutting under mach4 - G76 Working, but does not produce the number of cuts expected, so dry run first, it does not seem to be me at fault, unless I am missing something. G32 Not yet producing alternate flank cutting.

3
Others / Re: Ezilathe - Tools for the CNC lathe
« on: May 03, 2020, 09:54:00 AM »
Mike.
It would be unsafe to Base the clearance diameter on the last cut, as anything could be in the way on the return leading to crashes.
Under some circumstances, to speed things up, a rapid retract to clearance diameter can be used. Next to Dxf setup tab is the Misc setup tab, with a checkbox for "Rapid X Retract". Speeds it up no end, but you cannot use with some tools that may get tangled up with the face.

Both the other suggestions in the next update, due in a couple of weeks (Hopefully, just getting some bugs out).

4
Others / Re: Ezilathe - Tools for the CNC lathe
« on: April 30, 2020, 02:17:25 AM »
Mike.
1) Ah, the zoom buttons. Tried various ways over the years, Current setup is probably best option due to Time (Zooming is slow) and memory (needs to work on 32 bit XP with low ram). Possibility of some other ways of displaying graphics exist (including the tool going around in simulate mode) that may make this practical in the future.
2) Yes, can do this. Highlighting the current move in a contrasting colour, and still marking the current position with a circle.
3) Yes, Whenever the Tool pulldown is active, a small window will be open next to it (Covering part of the graphic) showing the full tool description and a graphic like in the Tool editor. I can also align the tool editor with the Pulldown.
4) Yes, but at this point in time, will have to be one out of the fridge.

I will see how I go with the Current Update (Bugs etc Mach4 etc). These May or may not be included, but certainly in the one after.

5
Others / Re: Ezilathe - Tools for the CNC lathe
« on: April 29, 2020, 02:45:08 AM »
Mike
Glad that fixed your issues, Hopefully All of them.
Your suggestions
1) The "Move Forward/Back 1 Line" Buttons in the Simulator Mode could be linked to the scroll wheel, Will put on the list, possibly for this update. That should work better.
2) In the simulator, Display mode. Picking on the end point of a move on screen or picking a line of code in the list box will put the circle on screen, and Highlight the Applicable line of code (Also highlighted in the editor). This also update the status line at the bottom of the screen. The Arrow keys may be used in the Listbox to move up/down the code. This should be all operating already on your computer, but has been developed under Windows 10.
3) Already Available under the Tool Editor Window (Open with 2nd Button from left in simulator). Allows Editing and Viewing your Tool list. In the sample Tool List supplied Some tool descriptions do not match tool entry. This is because My Lathe Back to front, i.e. I use LH Face tool to do the Job of RH Face Tool. Tool Entry data suits a conventional lathe. An Icon based on this data next to the Tool selection Pull down could be added, But not a small Job.
4) Suggestions & feedback are the best way.

6
Others / Re: Ezilathe - Tools for the CNC lathe
« on: April 27, 2020, 02:55:57 AM »
Mike. Thanks for the input, it always helps to iron out these things.
1 - Error message, It's the % sign at the end doing it, was a last minute change before posting Program. First time I used it, it happened to me. This issue is fixed in the latest version.
2 - I notice a bit of gouging 1/2 way along.. Good to see it highlighting a tooling issue (as it should) with the 35 deg Diamond RH face/turn tool.
3 - The big one. May I suggest that you shift your DXF so that it Starts at Z0 and Ends at Z-2.775 or so. Setting Zero at the R.H. end of the Workpiece eliminates a lot of these strange issues in processing even if you later shift the G-code by Z - 2.775 (In the editor). Let me know if this helps, If not, if possible could you send me your DXF to Analyse.
Also you might try the Follow Polyline Function instead of Cut Right to Left, as the processing is completely different.

The Latest Patched up version is nearly ready, so any changes required could be incorporated in it.

7
Mach4 General Discussion / Re: Screwcutting issue under Mach4
« on: April 13, 2020, 03:38:06 AM »
Yes, I noticed, but still no value here.

8
Mach4 General Discussion / Re: Screwcutting issue under Mach4
« on: April 13, 2020, 01:20:31 AM »
No. Spindle PID not the issue. Available, but not required in PWM (Used trimpot on module to give good speed control for all functions).
PID not available in OB Spindle (Not in this setup anyway).
There is an issue in the OB spindle Configuration, that only occurs when screwcutting, Perfect for all other functions.
No amount of PID adjustment will fix this.

9
Mach4 General Discussion / Re: Screwcutting issue under Mach4
« on: April 12, 2020, 02:12:58 AM »
Now Using Mach4 4.2.0.4469 / ESS V256.
Using OB Spindle, still not working but different (Possibly setting of motor) Motor running at set speed to start of screwcutting, then Speeds up a bit, with a definite fluctuation, before settling down to a stable speed. Conclusion - Someone (Warp9 or Artsoft) is still Stuffing around with the set speed.

Thank you Brian for suggesting PWM spindle control, Got the PWM-Voltage board and set it up today on the lathe.
PERFECT… No fluctuation in speed at all. Just what I needed for screwcutting. Will cut some threads in a day or so, but (hopefully) nothing can go wrong now.

10
Mach4 General Discussion / Re: Windows 10 - Disable Services
« on: March 31, 2020, 10:33:07 PM »
Possibly time for an update?
Hope you get it all fixed soon.

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