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  1. Mandrill22

    XYZ mfgPro230 xS SLS 3D Printer

    Does anyone have experience with the mfgPro230 xS SLS printer from XYZ or something similar? We're running one and I have an ever-growing list of complaints.
  2. Mandrill22

    Calculating Young's Modulus of Tight Rope

    I understand that it isn't a beam, and I agree in terms of the strands, but the rope as a whole sags due to the walker. It's taught and straight before the point load is applied.
  3. Mandrill22

    Calculating Young's Modulus of Tight Rope

    Does anyone have experience calculating stress/strain of a steel rope? A tightrope someone would be walking on is, from what I can tell on the web, 5/8" OD, with a 7x19 configuration, meaning 7 smaller braids of 19 strands each. The material is galvanized steel, details below: Construction: 7x19...
  4. Mandrill22

    Color on Drawings

    Someone used a drawing view with certain faces shown in a specific color to indicate a masked surface in the powder coating process (e.g. the part is mostly grey and a couple of faces are green). I've never seen that done, and I know it isn't best practice, as someone could have a B&W printer...
  5. Mandrill22

    Machine Comparison

    I've been reading up on what kind of machine specs I'll need to efficiently do Simulation. I haven't done anything with it in a long time. A software engineer recommended the tower, but a vendor says the mobile workstation would do the trick. Specs attached for the tower. Here is a link to the...
  6. Mandrill22

    AC Motor Torque RPM

    I'm trying to figure out what the output died and torque of the motor below would be. I would think it's 6W x 30:1 great ratio at 60 RPM would be: Torque (N.m) = P / [(2pi*RPM)/60] * Gear Ratio = (6W / [2pi*60RPM/60]) * 30 = 28.5 NM However, is the listed RPM the output RPM of the motor, or the...
  7. Mandrill22

    AC Motor: Can it be Hooked Up to an Inverter?

    Can this motor be connected to an inverter to control the speed with a dial?
  8. Mandrill22

    Flange Mount Bearing High Temperature

    Is there an AFFORDABLE, 2 bolt mount flange bearing, capable of withstanding 230 deg C? 60-70 RPM 2.3 N-m torque Shaft diameter is negotiable Low radial load (<2 lb) No axial load
  9. Mandrill22

    Beam Deflection (Bending) Force Created?

    I have a beam bolted to the wall. If I load it on the end, and it bends down 2.5mm (815mm long) at the end, I would think that a force is created on the mounting bolts in reaction to the bending. Is that not accurate? If it is, how would I quantify it?
  10. Mandrill22

    Pipe Reducer 6&quot; down to 2&quot;

    Can the unthreaded hold up 300 lbs with just cement?
  11. Mandrill22

    Pipe Reducer 6&quot; down to 2&quot;

    I have a vertical schedule 80 PVC pipe, 6" diameter, 36" long with a male threaded NPT end. McMaster 4687T73. I'm trying to find a bell reducer to get it down to 2" or at least 4" so that I can put a cheap as possible valve on it (app below) Is there any reason I can't find one? Alternatively...
  12. Mandrill22

    PVC Pipe Pressure Weight

    Does anyone know enough about PVC to know if it would be crazy to try to NOT cement the threads?
  13. Mandrill22

    PVC Pipe Pressure Weight

    I didn't understand the second sentence
  14. Mandrill22

    PVC Pipe Pressure Weight

    I'm trying to put lead shot into a 6" PVC pipe and cap it. If I put 300 lbs worth in, would the cap below hold it? It's ASTM D1784, which says that it's 280 psi rated. I would use the PVC cement. The items I'm looking at are from McMaster below. PVC Pipe Pipe Cap Pipe Cement
  15. Mandrill22

    Heavy Load, small container

    I wish I could just machine it, but the other people watching me wouldn't approve of that. The problem is that the lab weights don't usually reach 300 lbs.
  16. Mandrill22

    Heavy Load, small container

    Are those available at a reasonable price? All of the ones I've seen have been absurd.
  17. Mandrill22

    Heavy Load, small container

    I'm looking for something to hang off of the structure below. I need it to be loaded incrementally to 300 lbs. I am planning to use lead shot to weigh it, which would be a volume of about 3 gallons. I can't find a pale, drum, or anything like that to meet my needs. The pipe I have in there...
  18. Mandrill22

    Bolt Mounting Plate Gypsum

    Is the von mises stress the right way to go?
  19. Mandrill22

    Bolt Mounting Plate Gypsum

    I haven't done any calcs with gypsum before. How would I calculate the max shear that a 1/4-20 bolt (could be grade 9 steel) could take, when holding up a ss mounting plate of 9.5mm thickness? The plate will be agains 5/8 gypsum with a clearance hole for the bolt. The bolts go into rivet nuts in...
  20. Mandrill22

    Minimum Gauge for Steel Stud Behind Drywall

    These are interior walls and they will be in an office, so they extend to the ceiling, but I'm not sure about the roof. It just needs to be worst case scenario.

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