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Type: Posts; User: rcoope

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  1. Replies
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    For intermittent use for protection and if you're...

    For intermittent use for protection and if you're not so worried about aesthetics, definitely go with alodining. No one seems to run anodizing as a side project successfully for any length of time....
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    That's because they have actually banned...

    That's because they have actually banned multifamily housing in most of the city, so there is tremendous pressure on the industrial and commerical land to become apartments. In Vancouver for example,...
  3. Interestingly, McMaster Carr only has 5052...

    Interestingly, McMaster Carr only has 5052 starting at .032" but they have 2024, 3003 and 6061 at .025. That doesn't mean you can't get 5052 in .025" but McMaster often has the stuff that's...
  4. How thick are the wafers? I see you can get...

    How thick are the wafers? I see you can get Alumina down to .1mm. I'd be trying to convince the customer to go Macor so they could be made with regular drills, but it only goes to .5mm (from...
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    We have both a fixed in place Hyd-Mech cold saw,...

    We have both a fixed in place Hyd-Mech cold saw, which is great for fine finish cuts on Aluminum, and a Dewalt carbide chop saw. The Dewalt is amazing where you wouldn't expect like cutting 8' steel...
  6. My favorite local university physics department...

    My favorite local university physics department had to pack up their spindle of their late 90's Hermle and send it out. I'm not sure if it was Germany or Wisconsin but it was a big production. They...
  7. The dark secret of CNC machines in academic...

    The dark secret of CNC machines in academic settings: They sit unused because senior instructional staff don't understand them and are frightened!

    I'm quite pleased about this thing. Having a...
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    Where did you get that hand wheel? It looks like...

    Where did you get that hand wheel? It looks like a wheel off a race yacht.
  9. In case anyone hasn't seen this, check out the...

    In case anyone hasn't seen this, check out the Sirona MC X5 mill here
    YouTube
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    If the machine is basically in good shape then...

    If the machine is basically in good shape then $2500 is an excellent price and you should get it for sure. $3500 would be an excellent price in these parts, where there were deals on manual machines...
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    British Columbia is apparently one of four...

    British Columbia is apparently one of four jurisdictions, the others being Norway, Quebec and Manitoba, that get all their power from hydroelectric generation. BC is currently building the Site C Dam...
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    Why does option 2 have the machine so far from...

    Why does option 2 have the machine so far from the back wall? I assume so you can stick really long 4th axis stuff through the big door? We do occasionally run a job machining the end of a 3' tube...
  13. Great tip thanks Mr Bronson. Fredrick can you...

    Great tip thanks Mr Bronson. Fredrick can you shed light on the application? I sort of imagine have a marine application, or an extension to a vacuum chamber, but probably it's something else!
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    I'm amazed that warpage happened from regular...

    I'm amazed that warpage happened from regular spot welding. We've done lots of spot welding on 20Ga (.036") and even 22 and 24Ga and not seen that. It looks from the pictures more like the boxes got...
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    Our prototyping center has been thinking about...

    Our prototyping center has been thinking about one for a long time but we have a waterjet here and access to a Versa Laser off site, so it's been a want to have not have to have. So please let us...
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    We have a Royal Products pneumatic 5C collet...

    We have a Royal Products pneumatic 5C collet chuck for our 2007 TL-1. It's great though doesn't get used a ton since our bison 3 jaw is very good. But for a few small production runs on sub 1" stock...
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    JCByrd24 is spot on. I do sole source...

    JCByrd24 is spot on. I do sole source justifications for equipment from time to time, and it makes sense we have to do them as we absolutely have to be fair in how we operate with public money. The...
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    Can you say how thick the sheet materials are...

    Can you say how thick the sheet materials are that need to be connected? I'm not entirely getting the picture. Studs or aircraft rivets as discussed above are fine choices but for 20 to 16 Gauge you...
  19. I would agree with this, certainly the way we are...

    I would agree with this, certainly the way we are using it in our current project involves having the right discreet angle. Clocking is a nice term actually as it sounds like what it means.
  20. That Hydro thing is funny, but sort of...

    That Hydro thing is funny, but sort of understandable given three Canadian provinces (BC, Manitoba and Quebec) and Norway are the only four major jurisdictions that get almost all their electricity...
  21. Can you elaborate on the material and thickness?...

    Can you elaborate on the material and thickness? Can you not get close to the tap drill size with the laser or are you hitting specified tolerances? We tap waterjetted holes in steel and aluminum...
  22. Thank you for the excellent responses. I'm not...

    Thank you for the excellent responses. I'm not sure this was a particularly Canadian/American thing, maybe more a doctor/engineer thing. You know what is an awesomely confusing difference? In the...
  23. OT: Use of the word "clocking" for rotational angle alignment

    Here's a silly topic for a Monday: In an engineering call this morning, which involves Canadians and Americans and both physicians and engineers, the use of the word "clocking" was discussed, as the...
  24. This is a somewhat dispiriting thread. With a...

    This is a somewhat dispiriting thread. With a Sandvick diamond tool on a Haas TL-1 we were recently able to get substantially sub-micron finishes on inside and outside bores in acrylic. For something...
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    Punch presses are like old DNA sequencers (ask me...

    Punch presses are like old DNA sequencers (ask me how I know) in that they only run as part of a system of staff and support equipment which costs way more than the machine itself. So once obsolete,...
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