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Messages - bowber

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21
As the title  ???

I'm feeling a bit frustrated at the moment with the NFS wizards, I've set a 25mm cutter for surfacing the table, my table has 762mm actual movement on X and 618mm on Y, these are also set in the soft limits so they show the edge of travel in the preview.

I'm trying to surface the top of my sacrificial board so at first I tried -8.5mm on X and Y corner and set the width and length to 630 and 770 as this would give me a larger surfaced area then the table movement (movement + cutter rad)
But after a bit of messing it looked like the movements on the wizard are the actual axis movement not the finished edge of cutter size so I changed these to X,Y corner to 0 and the length and width to 752 and 612 to give me a little inside the actual movement of the table, the working zero was set inside the machine zero a little to make sure it was away from the edge of travel.

I looked on the preview and the bottom of the cut was coming outside Y by quite a bit (my zero is bottom left as you look at the machine X+ to the right  Y+ away/up) so the axis was trying to come out on a -Y travel.
I tried to cut it anyway but softlimits complained so I didn't cut it.
I then altered the Y travel from 612mm to 600mm and it now showed the travel as being inside the limits, set the cut off and it's started cutting at the top left corner inside the limits by quite a bit, I didn't measure it but I'd guess at around 12.5mm - 1/2 cutter dia!
So is the wizard broken and just putting out random code or does it take cutter dia/rad into account or do I work on the cutter centre line and allow for the cutter dia/rad manually?

Grrrrr
Steve

22
General Mach Discussion / Re: Mach3 VS Other motion controller for stability
« on: September 07, 2012, 06:27:54 AM »
My Mach computer lock on occasion and I'm fairly sure it's power related, I have a few UPS's on my work machinery and have few problems with them since doing putting them on UPS's.

Same when I ran Win 98, I got a drastic drop in crashing when they were on a UPS.

Steve

23
There nice.
I used to make these in house at Kshoes in Kendal and I'd spend 2 days writing the program on a PNC control board that used answer phone tape to store the program ;-)
I'd do the same now in half a day on my hobby equipment!

Steve

24
Hope I've posted this in the right place.

I've just bought some bits from Overclockers to update my wife's work computer and the motherboard includes a parallel port, it seems to have the different settings available in the BIOS etc so my be a candidate for a modern Mach computer built using new hardware.

Motherboard is an Asus M5A78L-M LX with AM3+ socket and space for 2 sticks of DDR3 memory, also has PS2 connectors for the mouse and keyboard.

It only has SATA disc support though.

I've not tried it with Mach and don't really have the time to try it as this is a design computer that's needed now, but I thought I'd give people the heads up.

Regards
Steve

25
It's been a while since I've been on the forum and it's like getting the final book in a series all at once ;-).
Great work and very jealous, no one to blame but me but still jealous.

Steve

26
General Mach Discussion / Re: Breaking a long routing job into smaller jobs
« on: November 09, 2011, 05:42:47 PM »
Also make a hole at a know position, handy for checking if your in the right place.

Steve

27
General Mach Discussion / Re: CAM recommendation, other than CamBam
« on: March 10, 2011, 03:49:59 AM »
I think Vcarve pro does that, it definately has a function to do random cuts and you can alter the settings so you may be able to get that effect.

Steve

28
General Mach Discussion / Re: CAM recommendation, other than CamBam
« on: February 22, 2011, 04:23:29 AM »
If I've got a long job that may have to be restarted for some reason, time or broken cutter perhaps, then I'll start with a hole somewere on the stock.
That way I can re centre the cutter in the hole and know it's relatively close, of course this doesn't work for very accurate parts.
If your machine has accurate homing switches then you can take a note of the machine coordinates for the work zero, then you just re home the machine then send it to these coordinates and zero the axis's.

Steve

29
General Mach Discussion / Re: CAM recommendation, other than CamBam
« on: February 19, 2011, 04:27:18 PM »
I've got both Sheetcam and Vcarve pro, I use Vcarve for signs due to the Vcarving but sometimes use it for 2 1/2D stuff and find it very good, easy to use and I like the preview you get.
Sheetcam is also very good and Les is very responsive to problems, he sometimes has a fix out in hours of being told about a problem and will try very hard to help.
For 3D I use Meshcam and for the money this is the best 3D CAM I've used (not used that many though)

However as others have said, if you've spent money on cambam then find out what your doing wrong as I've also heard good reports about it.

Steve

30
Not of mine but there are a few on youtube and other photo sites, just search for Edwards Radial, it should come up with a few hits.
Plans are available on the yahoo groups Radial group. Very simple engine and nothing out of the ordinary.

Steve

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