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Search: Posts Made By: KenC
Forum: Cutting various materials - bit selection, feeds, speeds Wed 22 June 2011, 22:13
Replies: 14
Views: 18,943
Posted By KenC
I'll try to borrow, steal or rob a torch to try...

I'll try to borrow, steal or rob a torch to try it out. Will show the result when I'm done with it.
Anyway, the client was pleased with the finishing, now all we need is his boss to approve the...
Forum: Cutting various materials - bit selection, feeds, speeds Wed 22 June 2011, 09:27
Replies: 14
Views: 18,943
Posted By KenC
As any drill bit will have a much higher positive...

As any drill bit will have a much higher positive rake angle then straight flute router bit. I took a drill bit & re-grind it...

with 3000rpm, 3300mm/min this is what it produced

11936

Much...
Forum: Cutting various materials - bit selection, feeds, speeds Wed 22 June 2011, 08:37
Replies: 14
Views: 18,943
Posted By KenC
Climb cut result 11935 A lot better but...

Climb cut result

11935

A lot better but still far from desirable...
Forum: Cutting various materials - bit selection, feeds, speeds Wed 22 June 2011, 08:18
Replies: 14
Views: 18,943
Posted By KenC
If cutting angle=rake angle, it makes sense to,...

If cutting angle=rake angle, it makes sense to, I just looked at the V-bit & it has negative rake angle.
BUT, I'll just try climb cut & see what happens.
Forum: Cutting various materials - bit selection, feeds, speeds Wed 22 June 2011, 08:02
Replies: 14
Views: 18,943
Posted By KenC
That is great info. pardon my ignorant, What...

That is great info. pardon my ignorant, What positive cutting angle :o...
Forum: Cutting various materials - bit selection, feeds, speeds Wed 22 June 2011, 06:24
Replies: 14
Views: 18,943
Posted By KenC
It look & feels like a very rought carpet :p My...

It look & feels like a very rought carpet :p My client say it makes great anti slip flooring...:(
I did swap bits, cut it multiple times but the results were the same....
Tried sanding paper but...
Forum: Cutting various materials - bit selection, feeds, speeds Wed 22 June 2011, 05:16
Replies: 14
Views: 18,943
Posted By KenC
Hello, I tried to engrave some diamond...

Hello,
I tried to engrave some diamond v-grooves on nylon & this is what I end up with...
11933

Tried various feed rate & spindle speed combination but results isn't satisfactory.
3800rpm to...
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