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Forum: MechMates already cutting Sun 06 July 2014, 17:14
Replies: 414
Views: 223,656
Posted By ger21
There are very few tools under $3000 that are as...

There are very few tools under $3000 that are as good as they were 15 years ago.
Unfortunately, paying double HF's price is still a very cheap tool, and with tools, you get what you pay for. ...
Forum: MechMates already cutting Wed 28 May 2014, 06:29
Replies: 414
Views: 223,656
Posted By ger21
He didn't mean to plunge a V-bit into the center....

He didn't mean to plunge a V-bit into the center. You just go around the circle to the depth of the bevel, either before or after you cut the center out.
Forum: MechMates already cutting Mon 26 May 2014, 21:01
Replies: 414
Views: 223,656
Posted By ger21
Is there some backlash in your Z axis? The Z axis...

Is there some backlash in your Z axis? The Z axis was not going down to the correct depth, or it would have cut through.
Forum: MechMates already cutting Mon 26 May 2014, 20:05
Replies: 414
Views: 223,656
Posted By ger21
Sorry, I didn't read the first post, as it was on...

Sorry, I didn't read the first post, as it was on the previous page.

For very thin material like that, a downcut bit will be better. An upcut will bend the edges up at the cut.

How deep into...
Forum: MechMates already cutting Mon 26 May 2014, 19:42
Replies: 414
Views: 223,656
Posted By ger21
http://www.amanatool.com/cncroutingdetails/aluminu...

http://www.amanatool.com/cncroutingdetails/aluminum-cnc-spiral-bit-51402.html

A downcut will work on thin aluminum, IF you cut it in one pass. If cutting less than full depth, there's no place for...
Forum: MechMates already cutting Mon 26 May 2014, 19:18
Replies: 414
Views: 223,656
Posted By ger21
Do NOT use downcut bits to cut aluminum. They...

Do NOT use downcut bits to cut aluminum. They don't work very well, and won;t last long.

Get a single flute "O" flute bit.
Forum: MechMates already cutting Wed 23 April 2014, 09:41
Replies: 414
Views: 223,656
Posted By ger21
If you search at CNC Zone, someone wrote a small...

If you search at CNC Zone, someone wrote a small program to output g-code for spirograph type designs. It's posted there somewhere, but it was over 5 years ago.
Forum: MechMates already cutting Sun 20 April 2014, 11:18
Replies: 414
Views: 223,656
Posted By ger21
Someone at CNC Zone just did a test with a 300GPH...

Someone at CNC Zone just did a test with a 300GPH pump.

He measured the time it took for 1 gallon of water to flow through the spindle. It took 2 minutes, 54 seconds, or about 20.6GPH.
...
Forum: MechMates already cutting Sun 30 March 2014, 05:49
Replies: 414
Views: 223,656
Posted By ger21
On the industrial machines I've used, the cables...

On the industrial machines I've used, the cables are tied where they enter and exit the chain, not within the chain itself. Typically the end pieces of the chain have provisions for tying the cable...
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