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Messages - Tweakie.CNC

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6101
General Mach Discussion / Re: cnc screwcutting???
« on: January 18, 2011, 11:32:34 AM »
Dale,

Check the output from your charger, some phone chargers don't put out anything until connected to a load such as a flat battery.

Tweakie.

6102
General Mach Discussion / Re: Wiring Limit & Home Switch
« on: January 18, 2011, 11:22:50 AM »
Just a suggestion,
You should really be using screened / shielded cable (grounded at the BoB end only) for connecting these switches in order to avoid any future problems with possible noise pickup and false triggering.

Tweakie.

6103
General Mach Discussion / Re: Mach 3 and CorelDRAW.
« on: January 18, 2011, 11:07:08 AM »
Ahh plasma - I do not recall plasma being mentioned in this thread, come to think of it I don't recall Cut2D ever being advertised as being suitable for plasma either - certainly not by Vectric. But I can see that 'ramp plunge' is totally useless for plasma work compared with 'lead in'.

6104
General Mach Discussion / Re: Mach 3 and CorelDRAW.
« on: January 18, 2011, 08:03:22 AM »
Quote
Cut2D does not have a lead in/out feature, which makes it virtually useless for contouring, unless you're OK with start and stop divits.  Doesn't make much sens as they advertise the software for contouring.  Sheetcam is a much better option.  It is far more flexible than Cut2D.

I agree and think SheetCam is a much better option here but to be fair Cut2D does have a 'ramp plunge' option which does prevent 'divits' (assuming you have a machine with minimal to zero backlash of course).

Tweakie.

6105
General Mach Discussion / Re: Mach 3 on disc?
« on: January 18, 2011, 07:13:10 AM »
I live in the sticks in the Southern USA , I'm using an IPAD on this forum.
Stealing wifi from next door neighbor.

That is just brilliant Chris - good on you.

         and

Well done Alan for your kindness.

Tweakie.

6106
Mach SDK plugin questions and answers. / Re: Impact engraving plugin
« on: January 18, 2011, 06:55:18 AM »
I think you are perhaps getting too technical for this simple little plugin.
You are correct - the output is on the digital trigger, which must be enabled, but make sure you do not have this pin allocated and enabled somewhere else in your setup.
The digital trigger will control the laser power using PRF so you just need to set the maximum allowable power.

Does this help ?

Tweakie.

nb. I have no problem with you writing to this post - we are all learning here together and that's the way it should be.  ;)

6107
Mach SDK plugin questions and answers. / Re: Impact engraving plugin
« on: January 18, 2011, 03:20:28 AM »
eBay is probably the best place to look.
I have in the past bought cheap, single axis boards from Virtual Village (China) and been very happy with the experience.

Tweakie.

6108
General Mach Discussion / Re: Mach 3 and CorelDRAW.
« on: January 17, 2011, 06:43:28 AM »
LB,

I think that Cut3D would be great if you are going to want to produce 2.5D or 3D models.

Tweakie.


6109
Tangent Corner / Tools Explained.
« on: January 17, 2011, 04:37:33 AM »
                                                                                                                              Tools Explained

DRILL PRESS: A tall upright machine useful for suddenly snatching flat metal bar stock out of your hands so that it smacks you in the chest and flings your beer across the room, denting the freshly-painted project which you had carefully set in the corner where nothing could get to it.

WIRE WHEEL: Cleans paint off bolts and then throws them somewhere under the workbench with the speed of light. Also removes fingerprints and hard-earned calluses from fingers in about the time it takes you to say, 'Oh sh--!'

SKILL SAW: A portable cutting tool used to make studs too short.

PLIERS: Used to round off bolt heads. Sometimes used in the creation of blood-blisters.

BELT SANDER: An electric sanding tool commonly used to convert minor touch-up jobs into major refinishing jobs.

HACKSAW: One of a family of cutting tools built on the Ouija board principle... It transforms human energy into a crooked, unpredictable motion, and the more you attempt to influence its course, the more dismal your future becomes.

VISE-GRIPS: Generally used after pliers to completely round off bolt heads. If nothing else is available, they can also be used to transfer intense welding heat to the palm of your hand.

OXYACETYLENE TORCH: Used almost entirely for lighting various flammable objects in your shop on fire. Also handy for igniting the grease inside the wheel hub out of which you want to remove a bearing race.

TABLE SAW: A large stationary power tool commonly used to launch wood projectiles for testing wall integrity.

HYDRAULIC FLOOR JACK: Used for lowering an automobile to the ground after you have installed your new brake shoes, trapping the jack handle firmly under the bumper.

BAND SAW: A large stationary power saw primarily used by most shops to cut good aluminum sheet into smaller pieces that more easily fit into the trash can after you cut on the inside of the line instead of the outside edge.

TWO-TON ENGINE HOIST: A tool for testing the maximum tensile strength of everything you forgot to disconnect.

PHILLIPS SCREWDRIVER: Normally used to stab the vacuum seals under lids or for opening old-style paper-and-tin oil cans and splashing oil on your shirt; but can also be used, as the name implies, to strip out Phillips screw heads.

STRAIGHT SCREWDRIVER: A tool for opening paint cans. Sometimes used to convert common slotted screws into non-removable screws and butchering your palms.

PRY BAR: A tool used to crumple the metal surrounding that clip or bracket you needed to remove in order to replace a 50 cent part.

HOSE CUTTER: A tool used to make hoses too short.

HAMMER: Originally employed as a weapon of war, the hammer nowadays is used as a kind of divining rod to locate the most expensive parts adjacent the object we are trying to hit.

UTILITY KNIFE: Used to open and slice through the contents of cardboard cartons delivered to your front door; works particularly well on contents such as seats, vinyl records, liquids in plastic bottles, collector magazines, refund checks, and rubber or plastic parts. Especially useful for slicing work clothes, but only while in use.

SON-OF-A-GUN TOOL: (A personal favorite!!) Any handy tool that you grab and throw across the garage while yelling 'Son of a GUN!' at the top of your lungs. It is also, most often, the next tool that you will need.


Thought I would post this just in case any newcomers are unfamiliar with the tools we use for our delicate CNC work.

Tweakie.

6110
General Mach Discussion / Re: Mach3 and laser?
« on: January 14, 2011, 12:38:00 PM »
Hi Dan,

There is little point in using Mach to control the PWM as this is far better achieved with a seperate, external controller.
A simple circuit is all that is necessary to actually switch the laser from the Z direction signal (Z+(up) turns it off and Z-(down)turns it on). The actual Z movement needs to be small (0.001 or less) to reduce the time delay but editing standard GCode to achieve laser control is easy once you get the hang of it.
Have a browse through my webpage here http://www.cooperman.talktalk.net/files/27.htm this may answer some of your questions.

Tweakie.

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