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Recent content by Shawthing6927

  1. Shawthing6927

    None rotating shaft seal (Linear slide)

    Hi, What type of seal would I want if I need a seal in which i can slide a shaft through, creating a seal on the outside diameter. I would then like to be able to remove said shaft (maintenance) and replace with another shaft (same size) and again be sealed hopefully without replacing the...
  2. Shawthing6927

    NOOB Question - Calculating a pressure applied

    I have a plate 70mm x 70mm. There are 2 points of force being applied to the plate at 6.5 N. From this can I calculate a pressure applied to the plate in PSI? Attached image. Thankshttps://files.engineering.com/getfile.aspx?folder=1c37896d-5768-48c7-adab-df0bbb51ae37&file=PLATE_FORCE.JPG
  3. Shawthing6927

    Liquid Drain Valve

    Good Morning, I am looking for some advice for a type of valve or design. I have a sealed machined box style enclosure. It contains liquid. The enclosure has 2mm walls all around, i.e. top, bottom, left and right. The enclosure has a overall height of around 45mm. So with the top and...
  4. Shawthing6927

    SEAL WELD QUESTION?

    Good Afternoon, I have a question regarding detailing welds that have to be sealed. So say for example the weld size I require structurally is a 5 single bevel butt weld. Now this is required to be liquid tight also. If I add 'SEAL WELD' reference will this compromise the weld strength by...
  5. Shawthing6927

    Anti Static Hose

    Good Afternoon, Could anyone advise me on an anti - static hose (10mm ID) which gives good flexibility & elasticity i.e. Silicone? Temperatures of 0 up to 70°C. It needs to fit onto hosetails. Any help much appreciated. Thanks
  6. Shawthing6927

    Tolerance question?

    See the attached image. How would you dimension the top faces of this part to ensure faces are kept level relative to each other? Would you use a parallel geometrical constraint or just linear dimension each face from the base? Thanks
  7. Shawthing6927

    Quick Release Lid Options

    I am not sure why but I can't reply directly to your posts. This box will be sat in a lab environment. So no vibration or real significant forces. Forces will be very minimal like 1 millibar. I am looking for a really cheap and cheerful way of locking the lid in place and removing...
  8. Shawthing6927

    Quick Release Lid Options

    Hi there. The lid could snap into place as long as it was easily removable and replaced. This by the way is made from 1mm sheet mild steel. What snap into place design are you thinking about? Thanks
  9. Shawthing6927

    Quick Release Lid Options

    Hi Everyone, I am looking for some inspiration. Any ideas on what to use to make a quick release lid for a container like shown. (see attached). I am looking to use something that doesn't require any tools. The lid needs to be removable from the box so a standard hinge and latch wouldn't...
  10. Shawthing6927

    Sheet metal box - SEALING

    Good Morning. I was after some ideas and / or advice regarding the following. See attached image of a typical sheet metal box. 2mm thick and seal welded in all 4 corners. There is only 1mm space to the outside of each face. Now the problematic area. The top 4 edges. These are edges of 2mm...
  11. Shawthing6927

    Screwdriver type manufacture

    Hi, I have a question regarding fitting a steel rod into a plastic handle. For instance, if you was making a prototype of say a screwdriver, how would you connect the metal driver to the handle? I am hoping to not have to commit to tooling cost just yet so looking for a simple solution for a...
  12. Shawthing6927

    Sealing on a fabricated square face

    Hi jgKRI, Could you elaborate please? The lid needs to be removable. Many Thanks
  13. Shawthing6927

    Sealing on a fabricated square face

    HI, The M3 screws are tightened using a pozi driver. There are compression limiters in the lid which bottom out at the desired 0.3mm compression. Formed in place gasket would be good, however it means scrapped part once the gasket becomes unusable? I am guessing the answer is its very hard to...
  14. Shawthing6927

    Sealing on a fabricated square face

    Hi, Everything leaks - this is true. So with my acceptable leak rate figure I can then conclusively design a part to achieve this? My uncertainty isn't relative to whether the gasket and clamping force could achieve the leak rate, it is whether or not a sheet metal formed surface can be...
  15. Shawthing6927

    Sealing on a fabricated square face

    Hi, The pressures are minimal (10 mbar). Temperatures up to 70°C. The 2mm sheet has a 'runner bar' underneath the sealing face allowing for extra thread length. With regards to what is acceptable or safe leakage. We are trying to achieve the minimum possible leakage, as the liquid we use...
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