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

Search:

Type: Posts; User: hobbyman

Page 1 of 25 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    17
    Views
    943

    Used alcohol in a spray bottle all the time for...

    Used alcohol in a spray bottle all the time for 6000 series extrusions and also 5000 series marine plate.... in a large shipyard. It did limit tooth pickup but not as well as saw wax. The problem...
  2. In my retirement I stumbled on a book describing...

    In my retirement I stumbled on a book describing the murder rates around the world. This husband wife team went over all the numbers looking for a common reason for murders. The classic accusations...
  3. I have been using a CPAP for about seven years...

    I have been using a CPAP for about seven years now. I used to have constant muscle ache like I had been weight training only it never went away. Three days into using the machine and the aches...
  4. Replies
    16
    Views
    2,145

    I found this idea of a plasma stream mysterious...

    I found this idea of a plasma stream mysterious until I remembered my aircraft maintenance training. Ignition systems on large radials was often pressurized so that the air in the distributor and...
  5. Replies
    16
    Views
    982

    I worked in a tank shop where they used DRY sand...

    I worked in a tank shop where they used DRY sand with great success bending for davits to hold flanges when unbolted. Filled pipe with one capped by welding a disc on the end. After filling and...
  6. Replies
    18
    Views
    1,771

    Getting side flashes as well as reflected light...

    Getting side flashes as well as reflected light is common in the trade. It is a matter of being careful and proactive. Some people never give it a thought. I have seen careless people with actual...
  7. Replies
    10
    Views
    1,866

    Oh to be young again....Big beams are fun,just...

    Oh to be young again....Big beams are fun,just measure more than twice when cutting. Welded wide range beams are much larger. I remember pushing over a bridge beam we were making into a logging...
  8. Replies
    39
    Views
    3,689

    I suggest you convert to metric. Do it in...

    I suggest you convert to metric. Do it in millimeters. You avoid fractions and decimals. so circumference is 48x12 = 576 add 5 for 581 convert to mm 581 x 25.4 = 14757 /8 = 1844.6 put that...
  9. Replies
    16
    Views
    1,253

    I read a book on corrosion that once temps fall...

    I read a book on corrosion that once temps fall below 45 F. corrosion rates plummet. In fact the corrosion rates in arctic tundra come close to the desert in Arizona. The tundra is not as dry but...
  10. Aluminum is expensive and it wears over time. ...

    Aluminum is expensive and it wears over time. Your tubes should be resting on short bars or edges at key locations and as mentioned a clamp or cam action should push the tube against the edges. ...
  11. Replies
    89
    Views
    10,307

    I am a retired steel fabricator so the longest...

    I am a retired steel fabricator so the longest time in one shop was about 7 long years. I was in for a project that would be successfully bid on and when the job was over I was also gone. The...
  12. Replies
    10
    Views
    841

    It is good to see someone taking the right action...

    It is good to see someone taking the right action by disposal. I was in one shop that had several slings with stretched links. Finally someone cut them up and laid them in front of the foreman's...
  13. Replies
    56
    Views
    4,047

    Something I discovered many years ago was that...

    Something I discovered many years ago was that water meters are normally leased to municipalities. That way taxpayers are on the hook for decades paying for something that rarely fails. I am on a...
  14. Replies
    14
    Views
    1,308

    Maybe make sweeps to check large and small ends...

    Maybe make sweeps to check large and small ends then prebend all the ends by feeding in a short distance from the back with the pinch rolls tight and the back roll tilted. If you have a good set of...
  15. Replies
    81
    Views
    7,685

    The process of choosing alloys and procedures is...

    The process of choosing alloys and procedures is in some ways "mystical".
    Now retired I was a fabricator on mostly structural and would locate as many as a thousand holes in beams in one shift. ...
  16. My Father was born in 1903. He saw/experienced...

    My Father was born in 1903. He saw/experienced the reality of WW1 as a boy. He got out of there long before things went bad however he had a paranoid character. Before fascism and communism showed...
  17. Replies
    21
    Views
    2,298

    The pot metal squares as we all know are garbage....

    The pot metal squares as we all know are garbage. Being a steel fabricator most of my life, laying out edge distance lines was done hundreds of times in a shift on the worst of surfaces. Rough...
  18. Replies
    69
    Views
    8,472

    Now that it is legal in Canada this will be a...

    Now that it is legal in Canada this will be a growing problem. What no one discusses is the behavior changes of users. There is really a "rose coloured glasses" effect. This was shown in...
  19. Replies
    19
    Views
    2,607

    Sub arc is heavily dependent on procedures and...

    Sub arc is heavily dependent on procedures and procedure qualifications. In one shop I was in we were doing welded wide flange beams. They were for highway over passes and were taller than a man. ...
  20. Replies
    19
    Views
    2,607

    Sub arc is an old process and well proven. You...

    Sub arc is an old process and well proven. You get a relatively high penetration weld and the flux gives a nice controlled cooling. Being automatic it is easily repeatable for each bead. The...
  21. Replies
    19
    Views
    2,607

    Brings back memories. I did 11 months making...

    Brings back memories. I did 11 months making cranes and end trucks. The big thing is alignment for that smooth running install. Of course it all goes south if the building is not on a firm...
  22. Replies
    7
    Views
    1,205

    I have done this twice in the last few months. ...

    I have done this twice in the last few months. My lathe has a VFD so variable speed and I rigged a short tube on the tool holder for the mig gun. A "U" shaped piece of wire became my trigger lock...
  23. Replies
    14
    Views
    1,746

    I worked in a small shop making end trucks in...

    I worked in a small shop making end trucks in batches. What blew me away was the difference between their five ton and ten ton end trucks. Everything was identical except that they installed four...
  24. Most people that are in the trades do not realize...

    Most people that are in the trades do not realize that welders are one of the few trade people that have to regularly test. In some cases they test daily. Imagine coming to work as a machinist and...
  25. Replies
    33
    Views
    3,479

    I am dating myself but 60 years ago an...

    I am dating myself but 60 years ago an "Industrial Arts" teacher had to have a trade in order to qualify for entrance into the teacher ed program that led to a degree. The fear of steel because of a...
Results 1 to 25 of 608
Page 1 of 25 1 2 3 4