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  • Machine's Avatar
    Today, 05:29 PM
    Machine replied to a thread Epoxying aluminum in General
    JB weld is a bit thick for use as a pure adhesive. I'd advise slightly diluting it with acetone to get better flow and subsequent bonding. Cleaning...
    16 replies | 126 view(s)
  • metalmagpie's Avatar
    Today, 05:28 PM
    This was new to me. I hauled home a magnetic pattern tracing burner yesterday. It was a barn find, and may or may not work out to be rebuildable....
    0 replies | 0 view(s)
  • JRouche's Avatar
    Today, 05:13 PM
    JRouche replied to a thread Epoxying aluminum in General
    I like that idea! Thanks. JR
    16 replies | 126 view(s)
  • MrFluffy's Avatar
    Today, 05:13 PM
    As above, machine a nest up and clamp it in that if it is very delicate and cannot get any marks at all on the surface, or put it in a veeblock and...
    5 replies | 249 view(s)
  • MrFluffy's Avatar
    Today, 05:10 PM
    MrFluffy replied to a thread Epoxying aluminum in General
    I use this adhesive and belzona 1111 super metal adding extra stiffness and bonding parts in when I absolutely cannot risk distorting the part with...
    16 replies | 126 view(s)
  • 754's Avatar
    Today, 05:03 PM
    754 replied to a thread Epoxying aluminum in General
    Not clear on wether there is a hole though the pieces or not.. I realize that aircraft and auto panels in Aluminum have been bonded for a long...
    16 replies | 126 view(s)
  • Robin R's Avatar
    Today, 04:58 PM
    Robin R replied to a thread Epoxying aluminum in General
    It is oxidation that causes a bad bond and it happens faster than you can cover freshly sanded aluminum with the epoxy. MattiJ has it right, you put...
    16 replies | 126 view(s)
  • Alistair Hosie's Avatar
    Today, 04:47 PM
    I knew something was wrong. Funnily I spotted something wrong today also where something was for sale very small from India for peanuts the shipping...
    8 replies | 265 view(s)
  • dmartin's Avatar
    Today, 04:43 PM
    Thanks a lot for the comments and compliment on the Gatling Gun. I do have a lot of other pictures that I have taken in the last couple years as I...
    1027 replies | 358640 view(s)
  • wombat2go's Avatar
    Today, 04:42 PM
    wombat2go replied to a thread Epoxying aluminum in General
    Do you mean that a grub screw is installed across the joint in the tapped hole?
    16 replies | 126 view(s)
  • rzbill's Avatar
    Today, 04:41 PM
    rzbill replied to a thread Epoxying aluminum in General
    Where did this group get the idea that you can't use epoxy or other adhesives on aluminum? There have been aircraft flying since the 70's that are...
    16 replies | 126 view(s)
  • 754's Avatar
    Today, 04:32 PM
    754 replied to a thread Epoxying aluminum in General
    If the added block is threaded for amount, there is a way with no fasteners showing.. but tricky. Drill 3 holes in each piece, center is a thru...
    16 replies | 126 view(s)
  • Horst's Avatar
    Today, 04:12 PM
    Horst replied to a thread Epoxying aluminum in General
    I am going with threaded fasteners. I had a feeling glue wouldn't work.
    16 replies | 126 view(s)
  • MattiJ's Avatar
    Today, 04:11 PM
    MattiJ replied to a thread Horrible Banggood in General
    I buy mostly from ebay, pretty much same products as Banggood (chinese vendors too). Gives you the extra lottery ticket: wrong item or not...
    16 replies | 992 view(s)
  • 754's Avatar
    Today, 04:04 PM
    754 replied to a thread Epoxying aluminum in General
    If you cant get the bond to stick , can you drill and countersink one side, and tap the other... 10-24 or smaller would do it.
    16 replies | 126 view(s)
  • MattiJ's Avatar
    Today, 04:03 PM
    MattiJ replied to a thread Epoxying aluminum in General
    Trick used quite often with aluminium is to apply layer of epoxy and roughen up the surfaces with (clean!!) stainless wire brush trough the epoxy...
    16 replies | 126 view(s)
  • 754's Avatar
    Today, 04:01 PM
    It not that hard to make a tool and cut Acme thread in bronze.. Unless it's under 9/16 screw size, then the homemade tools are tougher to make...
    12 replies | 298 view(s)
  • elf's Avatar
    Today, 04:00 PM
    http://bbs.homeshopmachinist.net/threads/43645-Making-Acetal-leadscrew-nuts-the-easy-way
    12 replies | 298 view(s)
  • brian Rupnow's Avatar
    Today, 03:30 PM
    I paid $25 for that length of round cast iron. There has to be at least $5 worth of it in the pile of chips left after boring one cylinder out to 1"...
    23 replies | 935 view(s)
  • Mike279's Avatar
    Today, 03:29 PM
    Mike279 replied to a thread OT. Bleeding a bottle jack in General
    Good information to save before I have a jack problem. Mike
    14 replies | 571 view(s)
  • 3 Phase Lightbulb's Avatar
    Today, 03:26 PM
    The relay is a 12V DC actuated relay that I'm using to turn on/off a 120VAC ~18W inductive load. The relay is rated for up to 10A 250v but since I'm...
    29 replies | 857 view(s)
  • PStechPaul's Avatar
    Today, 03:19 PM
    I was not familiar with the inner workings of a hydraulic jack. Here is a diagram of the basic mechanism: ...
    14 replies | 571 view(s)
  • Mark Rand's Avatar
    Today, 03:14 PM
    Measure the feedscrew and nut, then turn a new nut out of phosphor bronze or cast iron. It isn't rocket surgery.
    12 replies | 298 view(s)
  • RWO's Avatar
    Today, 02:49 PM
    RWO replied to a thread OT: Sprinkler controller build in General
    That is why water well pressure tanks have a rubber diaphragm to keep the water separate for the air. One the diaphragm fails, the tank becomes...
    29 replies | 857 view(s)
  • metalmagpie's Avatar
    Today, 02:46 PM
    metalmagpie replied to a thread Horrible Banggood in General
    I recently ordered a piece of 11mm round bar 10" long from them. Also an eye and eye turnbuckle. I always figure a purchase directly from mainland...
    16 replies | 992 view(s)
  • wombat2go's Avatar
    Today, 02:45 PM
    wombat2go replied to a thread Hybrid arbor-pulley in General
    If you ever have to replace the bearing heads on your mower deck, inside the old one/s is a flanged shaft. It is of machinable steel so the flange...
    19 replies | 1045 view(s)
  • johansen's Avatar
    Today, 02:42 PM
    heat is created in the formation of a planet from the gravitational potential energy (friction) as the particles collide. there is some increase...
    6 replies | 221 view(s)
  • RWO's Avatar
    Today, 02:42 PM
    RWO replied to a thread OT: Sprinkler controller build in General
    What do you guys think would be good values for an RC snubber to protect the Relay contacts from back EMF when used to energize the 120VAC main water...
    29 replies | 857 view(s)
  • RWO's Avatar
    Today, 02:20 PM
    RWO replied to a thread Epoxying aluminum in General
    Oxidation is not the problem and you can't remove it anyway. Degrease and roughen up the two faces with very coarse abrasive paper just before you...
    16 replies | 126 view(s)
  • danlb's Avatar
    Today, 02:14 PM
    danlb replied to a thread Epoxying aluminum in General
    If it fails, try using a file to rough up the surfaces. That will provide the mechanical "key" for the epoxy to lock onto. Dan
    16 replies | 126 view(s)
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