Search Results - Practical Machinist - Largest Manufacturing Technology Forum on the Web
Close
Login to Your Account

Search:

Type: Posts; User: Strostkovy

Page 1 of 52 1 2 3 4

Search: Search took 0.02 seconds.

  1. Replies
    27
    Views
    1,484

    Bus duct is for sure awesome, but I can't even...

    Bus duct is for sure awesome, but I can't even afford to look at the stuff
  2. Replies
    27
    Views
    1,484

    No, because some of them are already installed.

    No, because some of them are already installed.
  3. Replies
    27
    Views
    1,484

    Oh, in this context it would be for our own shop....

    Oh, in this context it would be for our own shop. Being able to put in all of the wireway/gutter up front before equipment in the future would be massive to allowing us to add equipment with ease. I...
  4. Replies
    27
    Views
    1,484

    Using what I learned I was able to come up with...

    Using what I learned I was able to come up with better searches. Wire gutters don't seem to need to be listed as long as they are made properly. Same with boxes.

    However, the authority having...
  5. Replies
    27
    Views
    1,484

    Article 314.4 contained the most interesting info...

    Article 314.4 contained the most interesting info

    I see the minimum thickness for steel is 0.059 and cast aluminum is 3/32". It's allowable to go thinner if tested and listed. Metallic materials...
  6. Replies
    27
    Views
    1,484

    Reading through those sections now....

    Reading through those sections now. Interestingly, there are a lot of additional requirements for ferromagnetic raceways to make sure they don't heat up from induction.

    Looking at conventional...
  7. Replies
    27
    Views
    1,484

    Yeah, that was kind of what I was figuring. I...

    Yeah, that was kind of what I was figuring. I didn't mention this is all inside works, joined up with EMT. I think boxes are typically steel for cost reasons. It would be pretty tough to make boxes...
  8. Replies
    27
    Views
    1,484

    Legality of shop made electrical boxes

    Electrical equipment is expensive, and sometimes hard to get. Or we just needed something we couldn't get quickly. As a result we have made a variety of custom electrical boxes ranging from slim...
  9. Replies
    13
    Views
    482

    A huge factor in galling is shoulder radius. If...

    A huge factor in galling is shoulder radius. If you make a large enough radius you can use material barely harder than what you are bending. If you have sharp corner radii even very hard steel will...
  10. Replies
    13
    Views
    482

    321140 321141 This handles 12 tons per foot...

    321140
    321141

    This handles 12 tons per foot without issue (calculated).

    For the punch I wouldn't be concerned about material. Even aluminum is fine.

    You didn't mention what angle you are...
  11. Replies
    13
    Views
    482

    We formed and welded 1/4" A36 to bend 1/4" 5052...

    We formed and welded 1/4" A36 to bend 1/4" 5052 to a 70 degree overbend. It works without issue.

    If you are concerned about galling, use die film. I don't have personal experience with stainless...
  12. A contractor friend got it a long time ago deer...

    A contractor friend got it a long time ago deer hunting and still struggles with it.

    From what little I know he supposedly gave it to his family years later, unaware it could be transmitted.

    I...
  13. Well you pretty much always have to train them on...

    Well you pretty much always have to train them on a blank, so just get some cheap sheet metal laser cut.
  14. How were these disks made and why couldn't they...

    How were these disks made and why couldn't they put the hole in at the same time with the same process?
  15. I'd plop it on the laser and set the tool path to...

    I'd plop it on the laser and set the tool path to repeat.

    I bet I could have four laid out and go along swapping parts behind the laser. No deburring and about 5 seconds per hole total it wouldn't...
  16. Replies
    9
    Views
    363

    a 35mm die is good for 2-6.5mm steel and...

    a 35mm die is good for 2-6.5mm steel and aluminum. 4mm punch tip minimum for 6.35mm aluminum, ideally same as material thickness.
  17. Replies
    9
    Views
    363

    8 times is the sweet spot but 4-16 works fine.

    8 times is the sweet spot but 4-16 works fine.
  18. Replies
    9
    Views
    363

    I prefer 85 degree dies because I can use die...

    I prefer 85 degree dies because I can use die film to prevent marking and avoid the tonnage increase that tends to happen as you approach the die angle.

    88 is fine if you aren't worried about die...
  19. Replies
    7
    Views
    367

    We considered a few variations, one of which...

    We considered a few variations, one of which being wheel-less racks that are pallet jacked into the oven. Unfortunately costs get high once we have to insulate the racks.
  20. Replies
    7
    Views
    367

    High temperature rubber casters

    We have a powder coating operation and the solid metal or phenolic wheels cause a lot of vibration and rough rolling, which causes parts to swing and in extreme cases bounce off the rack and hit a...
  21. Aren't bikes highly engineered for weight...

    Aren't bikes highly engineered for weight savings?

    That takes a lot of strength out of the threadss
  22. I got the joy of extracting a bolt from the head...

    I got the joy of extracting a bolt from the head of one of our lasers. Access was awful and the downtime wasn't cool either.
  23. Don't use a torque wrench larger than the ratchet...

    Don't use a torque wrench larger than the ratchet you would normally use. You preserve the feel.
  24. Why not preload a joint with Belleville washers?...

    Why not preload a joint with Belleville washers? For holding down pressure sensitive materials it works a treat. I loctite the threads or use nylocks in cases like that, where extreme vibration could...
  25. At my old job the standard mark that a bolt was...

    At my old job the standard mark that a bolt was tight was a completely rounded head.

    Not everyone over-torqued things, but the one guy that did spread open all of the wrenches
Results 1 to 25 of 1280
Page 1 of 52 1 2 3 4