Search found 22 matches

by Cwalster
Sat Jan 26, 2013 3:09 am
Forum: Discussion
Topic: Chips and dust - suck or blow?
Replies: 16
Views: 6184

Re: Chips and dust - suck or blow?

The answer comes down to what your cutting and what your goals are. Are you more concerned with chip removal or cleaning up the mess? If your concerned with chip removal, such as removing the plastic chips before they reweld or form a blob, an air blast is going to be a god send. If your trying to c...
by Cwalster
Fri Jan 25, 2013 1:38 am
Forum: Discussion
Topic: Internal right angle cut
Replies: 4
Views: 1496

Re: Internal right angle cut

Correct. Milling will always produce an inside radius identical to the radius of your cutter. And, technically, you can't get a true squared corner on a laser cutter as well. The laser cutter's beam is circular, and the corners are, in fact, rounded. However, the radius is so small it doesn't matter...
by Cwalster
Fri Jan 18, 2013 2:33 am
Forum: Software - CAD, CAM, Workflow Help
Topic: Gcode for ToolChange - Dwell Time?
Replies: 2
Views: 862

Re: Gcode for ToolChange - Dwell Time?

Using a dwell in that matter is an extreme no-no for any automated device. If you have an issue and the tool change takes longer than expected, the machine will take off on its own. If its just the axises under control, it means pinch hazards. If the spindle is controled... well, that's serious inju...
by Cwalster
Tue Jan 15, 2013 11:27 pm
Forum: Discussion
Topic: End mill or ... slot drill?!
Replies: 1
Views: 938

Re: End mill or ... slot drill?!

Same thing, different name. In my experience, non-centercutting 2 flute endmills are exceedingly rare. You should be able to just get any 2 flute carbide and be ok.
by Cwalster
Sun Jan 13, 2013 1:25 am
Forum: Discussion
Topic: FIRE IN THE HOLD!
Replies: 6
Views: 1296

Re: FIRE IN THE HOLD!

Silver is both the best thermal and electrical conductor there is. So, they use it to provide a better thermal transfer to the heat sink.
by Cwalster
Sat Jan 12, 2013 4:39 am
Forum: Discussion
Topic: Got given some end mills, what are they ...
Replies: 3
Views: 970

Re: Got given some end mills, what are they ...

I'd call number one a V groove cutter or a countersink bit, kinda hard to tell. Number two is definitely a straight edge router bit, good for woodworking and similar. They are good because its cheap to make them, but they are very bad in that the load up your spindle in one big hit instead of rampin...
by Cwalster
Fri Jan 11, 2013 1:00 am
Forum: Mini Spindles - Purchased
Topic: Chinese spindle (the 2nd best thing I've done for my Shapeok
Replies: 27
Views: 34401

Re: Chinese spindle (the 2nd best thing I've done for my Sha

Just because its a 1.5KW spindle doesnt mean its putting 1.5KW worth of work into the machine. Assuming you have proper feeds and speeds, its probably barely even loading up since you can't put real big tools in (and I'd be afraid to load it up anyways). The real fun happens when something goes wron...
by Cwalster
Mon Dec 31, 2012 5:46 am
Forum: Member Projects
Topic: Cutting stainless steel?
Replies: 13
Views: 12659

Re: Cutting stainless steel?

We do prototyping for foam packaging and other foam products. EPS and EPP mainly. We also produce the molds for those products out of aluminum. We use Haas GR-510 routers for our foam work and occasional aluminum work that wont fit into our other machines. Even those we try to avoid doing metal work...
by Cwalster
Mon Dec 31, 2012 3:43 am
Forum: Member Projects
Topic: Cutting stainless steel?
Replies: 13
Views: 12659

Re: Cutting stainless steel?

I'd be very, very careful with stainless. I have not done any milling of stainless (I work with foam and aluminum at work), but I dabble with it on a lathe. That little experience has taught me that it's no joke, and you can't come in blind. few points: 1. The grade of stainless greatly determines t...
by Cwalster
Thu Sep 27, 2012 12:08 am
Forum: Trim Routers
Topic: How much spindle is too much spindle?
Replies: 6
Views: 2919

Re: How much spindle is too much spindle?

See, this is why we ask questions. What kind of power do you think the machine could take? Or, where are other failure points that would need beefing up? Getting some metal wheels and re-drilling the plate isn't too much of a hassle.