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by jschrempp
Tue Feb 24, 2015 12:48 am
Forum: Shopbot and Tormak
Topic: Problems when cutting
Replies: 0
Views: 3316

Problems when cutting

If your wood part smokes, then either increase the feed rate or slow the spindle RPM.

If you hear screeching, they you are feeding to fast - or too slow. Try slowing the feedrate first. If that doesn't work, then increase the feed rate a bit.
by jschrempp
Tue Feb 24, 2015 12:46 am
Forum: Shopbot and Tormak
Topic: Bits
Replies: 1
Views: 1528

Re: Bits

Dan-Mar Tools is a good source of bits
907 American Street, San Carlos, CA 94070
Phone:(650) 591-2651
by jschrempp
Tue Feb 24, 2015 12:44 am
Forum: Shopbot and Tormak
Topic: Bits
Replies: 1
Views: 1528

Bits

The more flutes a bit has, the more heat it generates.

Typical flutes for materials:

Plastic: 2
Wood: 1 or 2
Aluminum: 2
Steel: 4
by jschrempp
Tue Feb 24, 2015 12:42 am
Forum: Shopbot and Tormak
Topic: Speeds and Feeds
Replies: 0
Views: 2206

Speeds and Feeds

WIkipedia has a good page on speeds and feeds. In particular, you can get the cutting speeds for many materials using a high speed steel cutter. http://en.wikipedia.org/wiki/Speeds_and_feeds Missing from the Wikipedia table is Wood. The Cutting Speed for a soft wood, such as pine, is 1000 feet per m...
by jschrempp
Mon Feb 16, 2015 5:02 pm
Forum: Board Information
Topic: Migration from old version
Replies: 0
Views: 3515

Migration from old version

Oh boy, that was a complete screw up. I have now recovered all the articles from the previous version of this BB. We lost the user base and the author of each article; sorry 'bout that. We are now on a current version of the phpBB and MySQL. I learned a few things from this. Please accept my apologi...
by jschrempp
Mon Feb 16, 2015 3:15 pm
Forum: Arduino
Topic: OS X and Arduino IDE
Replies: 0
Views: 3358

OS X and Arduino IDE

This site has the instructions for running the Arduino IDE on OS X http://arduino.cc/en/guide/macOSX I had to install the FTDI VCP driver 2.2.18 AND reboot my Mac to get it to work. I'm running 10.9.5 and installed the latest version of the driver, which said it was for several OS X versions, includ...
by jschrempp
Mon Feb 16, 2015 3:14 pm
Forum: Arduino
Topic: Ardweeny
Replies: 0
Views: 2253

Ardweeny

I got the kit an built an Ardweeny. The only tricky part was mounting the actual chip. When done I thought it wasn't working, so I unsoldered and resoldered the Arduino a total of three times. I figured it was fried. In fact, it works fine. This is a good kit for a cheep Arduino. You need an FTDI bo...
by jschrempp
Mon Feb 16, 2015 3:13 pm
Forum: Spark.io
Topic: Javascript
Replies: 0
Views: 3394

Javascript

I wanted to interact with my Spark Core through the Spark Cloud. I wanted to do it without having an active web server, so I wrote code to do it in Javascript (a nasty language to work with). The page I wrote will allow you to log on to your Spark account, get information from your core, and then se...
by jschrempp
Mon Feb 16, 2015 3:11 pm
Forum: Laser Cutter
Topic: Thermark - marking enamel for metal and glass
Replies: 0
Views: 3509

Thermark - marking enamel for metal and glass

Right, not really an enamel. You spray this product onto a metal or glass surface, laser it, then wash off the part that was not hit with the laser. I saw this used at TSMP on metal and the result was very good. The woman using it recommended it. I got a 6oz bottle of the spray on Thermark Laser Mar...
by jschrempp
Mon Feb 16, 2015 3:10 pm
Forum: Laser Cutter
Topic: Wood Staining
Replies: 0
Views: 2286

Wood Staining

I use Minwac Water Based Wood Stain to color my wood before I cut it. I get it at my local Ace Hardware store. They add tint just like they would with a paint. I ignore the colors in the samples on the shelf. I asked to see the colors in the tint machine, there are about a dozen. For my red, I use t...

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