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Messages - mrehmus

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General Discussion / Re: honeycomb bed
« on: April 12, 2018, 10:22:38 AM »
Won't work as well but might be OK, depending on the use.

General Discussion / Re: Solder free capacitor to board
« on: February 26, 2018, 06:22:00 PM »
You use the superglue to fasten the body of the cap to the board and then solder the contacts with a low-watt (10 or so) soldering pencil using a very little bit of resin solder that you cut off and place on the cap contacts. Better if you could arrange to put a flattened piece of solder (and a little bit of soldering paste) between the board and the contacts then superglue the body to the board. The a quick touch of the soldering pencil should melt the solder. Remember little is the byword.

Or, since you have a volunteer, mail it off!

Your mileage may vary.

Other Software / Re: Vectric Aspire Software
« on: February 13, 2018, 06:10:31 PM »

General Discussion / Re: A3 vs K40
« on: February 07, 2018, 08:48:14 PM »
Here I was thinking an A3 is equivalent to a 17 caliber.

General Discussion / Re: Etching Granite
« on: February 07, 2018, 10:12:18 AM »
To take pictures of reflective surfaces, use a light tent that will diffuse the light. Plastic water pipe will make a frame and a white bed sheet the covering. Just leave enough opening for the camera's lens.

General Discussion / Re: Leaving engraver by itself.
« on: February 06, 2018, 07:11:58 PM »
I have a Wi-Fi camera I purchased from China for $28. I can watch the laser, the CNC mill or the 3D printer all at one go. It is trainable from my cell phone or tablet so I can look almost 360 degrees around the shop and up and down. Couldn't train the dog to bark if something went wrong so this is better..

Inspiration / Re: free book on laser cutting/engraving
« on: January 14, 2018, 12:43:23 PM »
That is why you use a temporary e-mail address or mark their incoming as spam. Not a problem if you know what to do.

Inspiration / free book on laser cutting/engraving
« on: January 13, 2018, 06:33:56 PM »

They want your name and e-mail address but the book looks useful.

Inspiration / Another source
« on: January 05, 2018, 09:58:14 AM »

Cutting / Re: 2500mW laser beam issues
« on: December 23, 2017, 09:04:37 AM »
That is what my beam looks like. I have a new lens that I hope will do a better job of focusing. But I thought I understood that the diode lasers do not emit a circular beam.

General Discussion / Take a look at this cheap and easy cable chain.
« on: December 22, 2017, 01:46:22 PM »

You can get a cheap tape measure at Harbor Freight. Sometimes they are even free with another purchase.

FAQs For New Users / Re: If you could do it over, what would you buy?
« on: December 13, 2017, 05:33:33 PM »
My experience with a blue 2.5 watt diode laser on an EleksLaser A3 Pro says it's great for engraving but inconvenient for cutting. Therefore, I also have a K40 CO2 laser that has an output power of 37 W and yet too small to cut an 4 mm birch plywood at once.

Regards Leif.

Would you elaborate on your experience with the 40- (32) watt unit? I am contemplating whether the 50- or 60-watt versions would be better. I am interested in cutting 1/4 inch (6.35mm) plexiglass and plywood. In the section on the 40-watt units if you would.

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