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Messages - BluePinnacle

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Sounds like an ideal application for Mach3. I'd vote for little stubby bits as well, they are ideal for sheel metal.

If you need very precise holes drilling then you can use an endmill and a G13 command to make a pocket - This give you a lovely "adjustable drillbit" efect that lets you specify the hole size exactly.

Show"N"Tell ( Your Machines) / Re: RICH'S ATLAS CNC CONVERSION
« on: June 03, 2011, 01:08:11 PM »
Very useful and very flexible, and saves writing programs for odd jobs if you can still use the old handles. Well done :)

General Mach Discussion / Re: Problem with computer running mach3
« on: June 03, 2011, 11:24:03 AM »
I replaced my computer with a new Dell unit a while back and it sounds odd when the steppers run. It has the original Dell OEM install of XP Pro and two Moschip parallell cards. The steppers have a sort of whingey note to them which speaks of ill things, and it doesn't run as fast as it should without losing steps (or halting). I'm considering the option of a fresh install of bog-standard basic-as-hell XP, rather than the funny Dell setup, as there are probably a lot of Dell-specific background processes that I really don't need for making chips. I'll see how I get on with it and report back.

General Mach Discussion / Re: Mach skips lines: what's going on?
« on: May 24, 2011, 09:17:18 AM »
ok, cheers - Will reinstall wiith the driver in place and report back.

General Mach Discussion / Mach skips lines: what's going on?
« on: May 24, 2011, 09:10:35 AM »
I've written a very simple program for Mach3, and running it in simulation on my laptop, it skips the first few moves and goes straight into the g03 from where it is. Needless to say this is a right old nonsense.

My laptop is a 64 bit Winows 7 Professional machine, and the error occurs in regualar W7 and XP mode.

G64 G21 G15 G40 G49
G0 Z20
G41 P6.00
G0 X3.75 Y0
G03 X 3.75 Y0 I32 J0

I've tried littering it with dwell commands to try to prompt it to find the first few lines but to no avail. I've also tried replacing the initial rapids with fast g01 commands, and repeating the first move to the starting position several times. It just starts from where it is and gets into the G03 move. I'm stumped.

Any ideas?

Perhaps you'd be better off using the Classic Hunter barrel with the full lug underneath, you'd have something to grip onto at least. I had a (blued) 29 classic hunter, it was an awesome old hogleg and great fun to shoot with full power train-stopper loads. Details aside, awesome project ... tiny stuff like this is very demanding work.

Share Your GCode / Re: Suppressor Designs?
« on: May 02, 2011, 03:34:55 PM »
You could make a small spinning tool out of steel and spin odd shaped bits on a small, fast lathe: use annealed 1000 series aluminium. This gets you moving easily and quicky and at very low cost if you wanted recurved or nautilus baffles.

Share Your GCode / Re: Suppressor Designs?
« on: May 02, 2011, 02:34:11 PM »
Well, a popular choice for (improvised) .22lr silencers was 6mm penny washers as baffles and a big O-ring as a spacer - repeat a few dozen times inside a tube. The ones I've seen have used that were made commercially have either a perforated tube passing through an expansion chamber, or a series of stacked baffles inside a chamber with a partially conical section pounting towards the shooter. One i saw seemed to have a series of spinnings that formed a rather beautiful series of nautilus-like sections between the baffles. I think you could spend a lot of time experimenting with this stuff.

Could have been any number of CAD programs.

for preference these days I'm using Qcad. You can also do similar things (as well as PCB layouts) using OpenOffice Draw. Qcad is more capable and will export DXFs; Draw is easy to use and fine for simple, non-CAD stuff. Take your pick.

Anyone else using Qcad? I'm going to buy CamExpert at some point soon as it allows very clean Gcode export from DXF files.

General Mach Discussion / Re: Hood.....where is he?
« on: April 29, 2011, 12:12:52 PM »
Glad to hear you're on the mend. Gall bladders going wrong are incredibly painful but I'm told the operation is pretty routine. Hang in there and get better soon. :)

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