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  • Users: xtal01
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  1. xtal01

    general truss design question

    OK ... here is a dumb one. I need a temporary slide. I need to get 96 pieces of metal roofing ... 16" wide x 38 ft long ... to a roof. The edge of the roof is about 18 ft off the round. The metal is super flexible ... if it bends, it is garbage ... If you hold one end straight up, the other...
  2. xtal01

    min NiMH charge voltage and extra parts

    OK ... I was given the job of duplicating a "simple" box that monitors air flow in a duct. Seemed simple ... I dabble in electronics (I design and build industrial control panels .. starts ...plc's ... HMI ....) I knew the guy who designed and built the originals about 25 or 30 years ago ...
  3. xtal01

    Correct torque for grade A rod ?

    Hello, I posted this in the structural area but maybe it is more correctly a mechanical question so I am posting here also. I have looked all over the web for a chart showing the correct torque for nuts on a threaded rod. Found lots of charts but values all over the place. The issue might be...
  4. xtal01

    Grade A threaded rod torque ?

    Hello, I have looked all over the web for a chart showing the correct torque for nuts on a threaded rod. Found lots of charts but values all over the place. The issue might be the material. The threaded rod is 1/2"-13 hot dip galvanized grade A So, this is the lowest strength rod...
  5. xtal01

    why would there be a max depth for an epoxy anchor ?

    Sorry, started a new thread as this is a bit of different question. So, it is too cold to use Dewalt (Power Fasteners) Pure110+ (min temp 41 ... we have snow on the mountain behind me). I wrote and they recommended AC100+ Gold as it can be used down to 14 deg. So I was reading the spec sheet...
  6. xtal01

    Threaded Rod anchoring help please

    Hello, I am building a large workshop (3500 sq ft). I estimate I will need about 100 anchor bolts. When the pad was poured almost 10 years ago, I had no idea where the walls would be or if I would bolt the sill directly to the pad. I started building last year. In order to hold the walls in...
  7. xtal01

    coil winding help please

    I am restoring an old magneto phone. The coils in the receiver are dead (well I found the actual problem when I took one apart ... one end of the coil was just cleaned of insulation .... laid against the core of the coil ... and windings put over it .... 100 years of corrosion and there was no...
  8. xtal01

    Wood cleats on steps?

    So, back to the workshop project .... At some point soon, I will need steps. I am going to go up to a mezzanine, then onto the attic / storage are ... 18 ft total. I have built steps using notched stringers .... I have built steps where I have cut a grove in the stringer for the tread...
  9. xtal01

    Joist hanger question

    I have two spots where floor joists (engineered wood I) will dead end into an LVL. I also have a spot where two LVL's Tee into another double LVL. I looked at the Simpon Strong-Tie catalog. Two questions ... One ... Where the wood I hits the LVL, they make a top-flange hanger and a face...
  10. xtal01

    single or double LVL ???

    OK, dumb question ... I have a stairway to the second floor of my shop. The floor is 16" TJI's (wood I) The stairway is against the wall with the floor joists running parallel. To frame the stairway, I am going to use an LVL rather than just another TJI. If for no other reason, it will be...
  11. xtal01

    6 x 6 or three 2 x 6's ?

    I am building a new workshop .... 3500 sq ft ... 1000 sq ft attic ... doing everything myself. I am a very conservative builder. For example, I am using 16" TJI's for the attic floor to get a 125 psf rating. I don't think I could ever possible put that much "stuff" up there but I know I have...
  12. xtal01

    How much tension ?

    OK ... I have a friend who is about to try raising a wall ... his idea worries me (a lot). He figures he will more or less build half a scissor jack. I looked at his idea and I think the tension in the member that brings it together will be amazingly high. I am a machinist and don't know how...
  13. xtal01

    hole size in concrete for epoxy anchor ... tolerance ?

    We are about to fasten down the sill plate (pressure treated wood) of a new building (concrete pad). We plan to use hot dipped threaded rod. We looked at installation instructions for a few epoxy anchor cements (two part). Problem ... they all give a general note ... 1/2" and under ... hole...
  14. xtal01

    Wood Floor Truss question ....

    Hello, I was looking at wood floor trusses and noticed something odd .. well at least to me. Most floor trusses are built with the wood (2 x 3 or 2 x 4) on flat. Why? I know they are calculated to take the correct load but every roof truss I have ever used has been built with the wood...
  15. xtal01

    Structural rated glue ????

    I am just doing a little "over kill" on some floor trusses. They came from a certified manufacturer but the nail plates just look a little "iffy" to me. So, being overly cautious ... and since this is for my own place .... I am putting a wood member over the joint for added strength. I will...
  16. xtal01

    Substitute Grade 8 for 2H nut and bolt

    Should be a simple question but I wanted to check with someone with more knowledge of fastener strength than myself. I took off a trailer hitch (on a 17 year old) motor home and am now re-installing it. To my surprise, there was three types of hardware used ... all 1/2" fasteners. 1) two...
  17. xtal01

    Back to filters .... HELP!

    So, you guys started me on the right path a couple of weeks back. Now that I a plumbing the system, I need to order a filter. What was on the original unit was a Baldwin BT292. Hmmmm ..... from what I can tell this was the wrong filter. Rather than a hydraulic oil filter, this was a "full...
  18. xtal01

    Stainless Steel Tubing Supplier

    I just spent an hour searching the web for a hydraulic tubing supplier in the North East (well anywhere I guess ... no local supplier so it will have to come in UPS). I got 10 pages deep on a Google search and gave up. So far the only one that jumps out is McMaster Carr. Seamless .. $35 for...
  19. xtal01

    hose and fittings question ....

    So, the last time I bought hydraulic hoses from a local supplier (who has since gone out of business), I simply told him I needed a 36" long hose with 3/8" NPT fittings (for a snow plow) ... I don't think he even asked what pressure rating, just assuming it was under 3000 psi. He didn't ask me...
  20. xtal01

    NPT thread sealant ....

    You guys are going to be so happy when this project is done and I stop asking question. Most of my connections are SAE (o-ring). From what I read this is a great seal and most of the items I ordered only gave this option as a connection. However pump and cylinder (being 30 years old) have NPT...

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