Page 4 of 6 FirstFirst 123456 LastLast
Results 46 to 60 of 86
  1. #46
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,470

    Default

    After much ringing around and pricing, the flexible ducting arrived today. I got 2m of 125mm, just in case

    IMG_0294.jpg


    and got a super deal on 8 m of 160mm as it was the end of a large roll. Glad I got 160mm - nice snug fit without being a struggle to fit.

    IMG_0295.jpg

  2. # ADS
    Google Adsense Advertisement
    Join Date
    Always
    Location
    Advertising world
    Posts
    Many





     
  3. #47
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,791

    Default

    Starting to look like a system
    The 160 mm looks like the ClearView stuff.

  4. #48
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,470

    Default

    Quote Originally Posted by BobL View Post
    Starting to look like a system
    The 160 mm looks like the ClearView stuff.
    Getting there
    Yes, it does look like the ClearVue stuff . I priced theirs - but I like my price better

  5. #49
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,791

    Default

    Tip 3.5.44

    To reduce resistance, instead of using the corrugated flexy itself as the 90º bend, it's better to install a PVC bend and then hang the flex from that.
    Even a 45º bend will help.

    I realise it might get in the way sometimes, but when connecting flexy I usually try to orient the side arm of the Y downwards so that automatically gives you 45 so then another 45 fitting completes the turn.

  6. #50
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,470

    Default Filters

    When I carried out the db readings I commented on the differences with the collection bag on and off. I also noticed a big difference in flow rate when I first checked flow with a short pipe fitted to the impellor with the bag off and the end of the manifold on the finished product with the bag on. Obviously there would be a difference but I felt it was too much so I suspected the pleated filter may be blocked. I had some bits coming from Hare and Forbes so I ordered a needle felt bag as it was cheap and if the pleated filter was unserviceable, at least I had a filter.
    Wooowwww!! I forgot to take a picture but when I removed the pleated filter it was almost solid lower down between the pleats with dust and fine shavings. I fitted the needlefelt filter to the dusty and turned the system on. I know the needle felt filter is not conditioned yet, but Woooooowwwww the difference in flow at the end of the manifold was incredible.

    Got to work on the filter with a brush and vacuum and a low pressure air source and nearly filled a bag with dust and shavings. Lots of brushing, blowing, vacuuming and the filter looks great - can actually shine a light through it now.

    My guess is that the rotary brush unit in the filter must have not been used very often. I had rotated it numerous time and it looked like the brushes had cleaned the ends but not dislodged the dust further down.

    I'll put the filter back on after a Christmas after fitting a low positive pressure gauge between the pump and filter to see the difference between the needle felt and pleated filter.

  7. #51
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,791

    Default

    Quote Originally Posted by Lappa View Post
    . . . . when I removed the pleated filter it was almost solid lower down between the pleats with dust and fine shavings. I fitted the needlefelt filter to the dusty and turned the system on. I know the needle felt filter is not conditioned yet, but Woooooowwwww the difference in flow at the end of the manifold was incredible.

    Got to work on the filter with a brush and vacuum and a low pressure air source and nearly filled a bag with dust and shavings. Lots of brushing, blowing, vacuuming and the filter looks great - can actually shine a light through it now.

    My guess is that the rotary brush unit in the filter must have not been used very often. I had rotated it numerous time and it looked like the brushes had cleaned the ends but not dislodged the dust further down
    The other reason I have seen for this effect is users letting their lower collection bags fill up too far.
    The lower bag should be emptied and filter cleaned when the lower bag is no more than two thirds full and preferably before then.

  8. #52
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,470

    Default

    Almost there!! Just waiting on an adaptor for the router table. Once I have that I can build the "collection point" on the table.


    Blast gates installed
    IMG_0384.jpg IMG_0383.jpg



    Table saw hooked up. What a difference!!

    IMG_0385.jpg

    Seems to work well - one small dead spot in the front RH corner about 100mm square. Looking at angling an intake port into that area.
    Also building a number of mock-up dust pickups and guards for the saw blade. Once I have the design right, I'll build one out of perspex.

    IMG_0388.jpg

  9. #53
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,470

    Default

    Put this hood together today. Still have to mount it properly but it works extremely well with the test cuts I did Made it large so it will suit a bigger blade if I upgrade.

    IMG_0394.jpg

  10. #54
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,470

    Default

    Saw blade shroud up and running. Crude maybe, but boy is it functional!! Great to have a clean saw table. Black plastic hose is too stiff, waiting for some flexy to arrive next week. Need to add a spring at the back and a couple of wheels maybe but it can be used as is.

    IMG_0398.jpg

  11. #55
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,791

    Default

    Quote Originally Posted by Lappa View Post
    Saw blade shroud up and running. Crude maybe, but boy is it functional!! Great to have a clean saw table. Black plastic hose is too stiff, waiting for some flexy to arrive next week. Need to add a spring at the back and a couple of wheels maybe but it can be used as is.

    IMG_0398.jpg
    What's it connected to?

  12. #56
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,470

  13. #57
    Join Date
    May 2011
    Location
    Albury
    Posts
    3,035

    Default

    Bloody hell. Couldn't the majority of that vac hose be converted to 50mm PVC? I acknowledge that it's still a work in progress. You could then use the vac hose to water the lawn from the washing machine. I can see that saw blade dust hood design being copied and refined over the coming years - looks great.

  14. #58
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,791

    Default

    Quote Originally Posted by Lappa View Post
    Thanks for the vid.
    It would be interesting to see the saw running with and without extraction, with air flow strip indicators.

    Like this.

    Air speeds in and around duct openings and blades (NB Invisible dust discussed)-tsanddcon-jpg

  15. #59
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,470

    Default

    Thanks Aldav. Had the 50mm flexy lying around for a couple of years from the previous dust system. Needed to be flexible then, as the table saw and router table kept getting moved around.
    New system has been costly so trying to use what I had lying around

  16. #60
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,470

    Default

    Here's the video you asked for BobL. First section is saw only, then saw and extraction together, then extraction turned off and saw only.

    https://youtu.be/lIPLan6_4YA

Page 4 of 6 FirstFirst 123456 LastLast

Similar Threads

  1. 2 small dusty or 1 large dusty
    By Albert in forum DUST EXTRACTION
    Replies: 24
    Last Post: 17th October 2016, 02:07 PM
  2. best dusty
    By MichaelP in forum DUST EXTRACTION
    Replies: 2
    Last Post: 25th June 2011, 11:25 AM
  3. dusty vrs wet and dry
    By justahobby in forum DUST EXTRACTION
    Replies: 2
    Last Post: 1st January 2011, 06:53 AM
  4. dusty help
    By ss_11000 in forum DUST EXTRACTION
    Replies: 13
    Last Post: 29th May 2006, 07:43 PM
  5. My dusty
    By Garell in forum WOODWORK PICS
    Replies: 0
    Last Post: 23rd May 2006, 08:44 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •