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Messages - Will_D

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1
Newfangled Mill Wizard / Re: Polyline
« on: February 26, 2018, 06:33:55 PM »
Thanks guys for the update.

2
Newfangled Mill Wizard / Re: Polyline
« on: February 25, 2018, 06:18:16 PM »
Just Bumping this!

Does anyone actually buy and use this product?

Is it supported in any way?

Still no reply from anyone!!

3
Newfangled Mill Wizard / Re: Polyline
« on: February 15, 2018, 04:14:44 AM »
Just Bumping this!

Does anyone actually buy and use this product?

Is it supported in any way?

4
Mach4 General Discussion / Re: Glad |I asked first
« on: February 11, 2018, 05:44:44 AM »
The quote button places two editing characters on your text input screen. Between these two characters you may paste a quote
previously saved to your clipboard.

Cheers Craig,

It didn't do that the other day though!!

Now it just quoted your whole message as I would expect - ah well at least something is working!

5
Mach4 General Discussion / Re: Glad |I asked first
« on: February 10, 2018, 03:37:35 PM »
What does the quote button do on a post? Not a lot by the look of it. How do I quote a message?

Anyway BOT:

Quote Steve:  "General purpose milling gets into trouble because climb cutting may cause the table
to move due to cutting forces and there is nothing the control software can due to
prevent that."

Agreed there is no way backlash compensation can compensate when climb milling.

Answer: Don't climb mill on a hobby machine with backlash. This is standard newbee instruction.

However conventional milling should be more like lathe work where BLC is an every day "do it by hand" operation.

Sure BLC in a cnc controller would work very well on a lathe.


6
Newfangled Mill Wizard / Re: Pointer to current version
« on: February 04, 2018, 01:18:40 PM »
Why is this top of the thread list?

7
Mach4 General Discussion / Re: PMDX - Mach4 and SmartBOB sale - follow up
« on: February 04, 2018, 07:04:59 AM »
Yes thanks Steve.

With regards motion controllers: I feel like i am drowning in a sea of options.

Its like the wife choosing a dress: After trying on about 10 she then says "Can I see the first one again"

I am about coming round full circle back to the 416!

Talk soon

Will

8
Newfangled Mill Wizard / Polyline
« on: February 03, 2018, 04:09:31 PM »
This "feature" was first mentioned way back in 2015 or so. It is now in 2.0.4 but it is still "in the test phase".

How is this supposed to work? There is no help available and the user interface is confusing to say the least.

I was hoping for a simple path generator to get code to cut a simple rebate on the edge of the material.

i.e. io want to cut a 6 mm wide 4mm deep rebate with a 12 mm end mill. I am surprised that this Wizard does not support such simple operation. After all it has a slot facility that will cut a wide slot with a small cutter but not a simple slot just using the cutter. (This was first mentioned years ago).

You are probably aware that the help file list of contents does not agree with the actual implementation? Why is this?

9
Mach4 General Discussion / Re: Glad |I asked first
« on: February 02, 2018, 10:47:21 AM »
Hi Russ,

This from Steve at PMDX:

The PMDX SmartBOB family does not yet support backlash compensation.
 
We do intend to do so, but I cannot offer a schedule for it, so plan accordingly.
 
Regards,
Steve Stallings

10
Mach4 General Discussion / Re: Glad |I asked first
« on: February 02, 2018, 08:31:46 AM »
Hicon looks nice but it should do for the price $595 - EEK!!

Ess looks much more affordable, However: Backlash not fully working. Only controls 4 stepper drivers and it is recommended to buy a BOB as well! So $30 on a C25 BoB. Also no mention of spindle control? Would need another Bob for spindle. Also documentation I have read is VERY unclear as to how you assign and configure the various I/O ports!

Afaik: Mach3 did its own backlash compensation (I have seen videos) because it just sent signals out through a DB-25 connector. Mo motion controllers then.

So it is really looking like as another thread stated "Mach 4 is not really for hobbyists"!

Why do I say this:

1. Lack of money - we are all short of money hence the DiY CNC builds.
2. Home made / old machines NEED backlash compensation.
3. Mach3 was a one stop solution. PC /Mach3/Stepper drivers and limit switches. Mach 4 is anything but one stop shop!

Mach 4 seems to be targeted at high end OEM installs who are happy to spend (and pass on to customer) by specifying high end  motion controllers/BoBs/etc etc

Surely Backlash is not that complex:

GetNextCoordinate(Coord, dirChange);
if dirChange
then
     ApllyComp(Coord)
fi;
MakeMove(Coord);

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