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Messages - Tweakie.CNC

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3491
Show"N"Tell ( Your Machines) / Re: The Laser Project.
« on: December 21, 2013, 07:04:23 AM »
Knowing how we all like gadgets I thought you may be interested in this little device I put together last week. It is essentially a basic (and more robust) version of the commercially available ‘home energy monitor’ but it’s my hobby to always build as much of my own stuff as I can so thought I would share the experience.

Simple and quick to construct using a combined voltage / current meter display (bought via the bay from China at about £7 inc. postage) 13 Amp plug, socket and cable plus a project box enclosure.

Its purpose is just to get an idea of the combined electricity running cost of the laser, air supply, cooler, extractor etc. under average / normal operational conditions for different types of job.

The first picture shows the readings I get with my Koi air pump, cooling system and laser running at low power during an engraving job. My compressor (only used for cutting thick stuff) and ducted fume extraction system were each measured separately.

As Watts = Volts x Amps my machine, during the average engraving job, uses (237 x 1.7) 402.9 Watts which is 0.4029 kW per hour of job time. Adding to this the figures obtained from the fume extraction system and using the price per kW hour from my energy provider I can get a pretty good idea of the machine running cost (at least as far as the electricity usage is concerned).

I don’t intend for the gadget to be permanently left in circuit, although it may be handy to monitor any possible voltage drop on my supply at peak usage times, it is just used to establish the average electricity usage for different types of jobs.

The second picture shows the readings I get when cutting thin acrylic.

Tweakie.

3492
General Mach Discussion / Re: Gear Milling
« on: December 20, 2013, 07:52:28 AM »
hi there im new to this hobby im using mach3 cnc milling and would like to cut a worm gear using 4th axis how do i go about setting this or the codes please help
Thankx

Hi Khaled,

Welcome to the forum.

Whilst machining a worm gear using a milling machine and 4th axis sounds like a simple enough task, as a beginner you may find it difficult to set up the necessary parameters within Mach3 (as explained by Al in the above post).

Not wishing to deter you from the exercise but I think that using a screw cutting lathe would be a whole lot easier.

Tweakie.

nb. Please don't make multiple posts on the same subject, it is counter productive - thanks.

3493
General Mach Discussion / Re: Random E-Stop on Mach?
« on: December 14, 2013, 12:04:28 PM »
Quote
Is there a debounce timer in Mach for the inputs if it is a noise issue?

Config / Gen. Config - Input Signal Debouncing / Noise rejection.

If increasing this to say 2000 cures the problem then you may want to check your limit switches for quality / shielded wiring etc.

Tweakie.

3494
Show"N"Tell ( Your Machines) / Re: Focusing an IR laser diode
« on: December 13, 2013, 11:27:15 AM »
Hi Jay,

I am pleased you got it sorted.

Tweakie.

3495
Viz,

Try running the code in Exact Stop motion mode (config / general config).

Tweakie.

3496
General Mach Discussion / Re: Vector Graphics
« on: December 09, 2013, 06:57:43 AM »
For simple stuff LazyCam (free with Mach3) can work quite well.

Tweakie.

3497
Spanish / Re: Problema con "Auto Tool Zero"
« on: December 09, 2013, 05:10:59 AM »
Si se trata de cualquier ayuda para usted el guión que estoy usando es aquí http://www.cooperman.talktalk.net/files/17.htm

Tweakie.

3498
Show"N"Tell ( Your Machines) / Re: Focusing an IR laser diode
« on: December 09, 2013, 01:47:54 AM »
Quote
When I removed the lens, I could see the diode was off center, almost against the edge of the housing.  I believe that is why I can't focus it properly.

Looks like a new unit is required then.  :(

Tweakie.

3499
Mach3 under Vista / Re: Mach 3 and win 7 crash and blue screen
« on: December 08, 2013, 11:18:25 AM »
Hi Guys,

Welcome to the forum.

Sounds to me as though your PC is not up to the task.
Perhaps installing WinXP as the operating system may improve the situation.

Tweakie.

3500
Show"N"Tell ( Your Machines) / Re: Focusing an IR laser diode
« on: December 08, 2013, 05:21:19 AM »
Perhaps the easiest solution is to create a GCode program that just fires a single, fast, dot.

Use a piece of wood as the work, fire the ‘dot’ - when complete observe the size on the dot on the surface of the wood. Adjust the focus and fire another dot and repeat until you can obtain the smallest sized dot on the surface of the wood.

Now switch the wood for a piece of black anodized aluminium and repeat the process, slightly adjusting the focus (as necessary) until you can produce the smallest possible size of dot.

Tweakie.

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