Page 2 of 2 FirstFirst 12
Results 16 to 27 of 27
  1. #16
    Join Date
    Sep 2018
    Location
    Tasmania
    Age
    53
    Posts
    186

    Default

    Quote Originally Posted by Bohdan View Post
    The more that you starve a vac or dust extractor the less air you move and that requires less power and therefore less load on the motor.
    Not trying to dispute this, Bohdan, but I don't understand why the motor seems to increase in pitch and sound more like a jet plane taking off when it gets blocked (if that's the same as what you meant by being starved).

    Regards Adam

  2. # ADS
    Google Adsense Advertisement
    Join Date
    Always
    Location
    Advertising world
    Age
    2010
    Posts
    Many





     
  3. #17
    Join Date
    Apr 2014
    Location
    Little River
    Age
    77
    Posts
    1,205

    Default

    Because it is moving less air it has less load and it speeds up and what you hear is the siren effect of the fan.

  4. #18
    Join Date
    Apr 2014
    Location
    Little River
    Age
    77
    Posts
    1,205

    Default

    Quote Originally Posted by Stratman View Post
    (I'm just using it for vacuuming the floor).
    That would create the blocking effect, whenever the nozzle is flat on the ground.

    On my system I use 50 mm PVC pipe between the cyclone and vac and the either 38 or 50 mm hose to feed the cyclone. I do get blockages when vacuuming up sawdust and that is when my previous drum collapsed.

  5. #19
    Join Date
    Sep 2018
    Location
    Tasmania
    Age
    53
    Posts
    186

    Default

    Ah thanks Bohdan, I assumed speeding up sound was the motor actually working harder. But it's just the sound of the fan. Thanks!

    Regards Adam

  6. #20
    Join Date
    Sep 2018
    Location
    Tasmania
    Age
    53
    Posts
    186

    Default

    Quote Originally Posted by Bohdan View Post
    That would create the blocking effect, whenever the nozzle is flat on the ground.
    Oh it's never flat on the floor, but thinking about it now, often large shavings from hand planes were getting trapped/stuck at the very end of the nozzle, I'd push them in and then they'd get sucked up. But that would still create the blocking effect.

    So... I'll try you suggestion of 50mm PVC from the cyclone to the vac.

    Thanks again, Bohdan.

    Regards Adam

  7. #21
    Join Date
    Apr 2005
    Location
    Warragul
    Age
    68
    Posts
    577

    Default

    Quote Originally Posted by Potts View Post
    I just slipped mine inside another bucket, strengthens the side walls.

    +1

    Absolutely agree! I haven't had a problem since doing that.

  8. #22
    Join Date
    Sep 2018
    Location
    Tasmania
    Age
    53
    Posts
    186

    Default The dust bucket has kicked the bucket

    Well, that was an interesting exercise. Think I'll get that metal bucket!

    I've attached some photos of the setup. It was only temporary as I'm still playing around with hoses, fittings etc. (and will get 50mm PVC pipe for the cyclone/vac connections) but it was most definitely air tight.
    11.jpg

    Running the vac with either the single bucket or double was fine when there was no restriction on air flow, vacuumed up fine.

    With the single bucket, as soon as any restriction occurred, it collapsed.
    4.jpg

    With the double buckets, it seemed a bit more sturdy, but I could still see flex when partially restricted. But once it was fully restricted (like putting my hand over the end of the hose)... disaster!
    1.jpg2.jpg10.jpg

    Interestingly, these buckets I have are definitely not even in thickness around the sides. If I placed my two hands on opposite sides and press together, then one side of the bucket would deform, but not the other. It was easy to feel the reduced stiffness in certain parts of the bucket. So crappy buckets only adding to the issue.
    7.jpg

    Off to source a metal tin/bucket... or maybe even a cheapie shop vac off Gumtree. I've seen a few before with stainless steel bins for $20 or less.

    Thanks everyone for your assistance, suggestions and other ideas!

    Regards Adam

  9. #23
    Join Date
    Apr 2014
    Location
    Little River
    Age
    77
    Posts
    1,205

    Default

    I got my buckets from a drum recycler for only a couple of dollars. You have to make sure that both buckets are exactly the same.

  10. #24
    Join Date
    Sep 2018
    Location
    Tasmania
    Age
    53
    Posts
    186

    Default

    Thanks Bohdan

    I wasn't even sure what a drum recycler was
    Had to Google it.

    The two buckets I have are both the same, but clearly not sturdy enough. I'll look at a few of these local drum recyclers.

    Regards Adam

  11. #25
    Join Date
    May 2019
    Location
    Adelaide
    Age
    63
    Posts
    500

    Default

    Looking at your pics the internal bucket looks to be sitting far higher than the external, it need s to be pushed down as tightly as possible. Rims touching.

  12. #26
    Join Date
    Sep 2018
    Location
    Tasmania
    Age
    53
    Posts
    186

    Default

    Yeah it's as far down as it goes. There are ribs around the top sections of each bucket. But they were connecting/touching before they were sucked in. It pushed the inside bucket up higher after that. Pretty standard design for these types. They're just not suitable for this I'm guessing.

  13. #27
    Join Date
    Sep 2018
    Location
    Tasmania
    Age
    53
    Posts
    186

    Default

    Anyone in southern Tassie got any 20l paint tins with the rings locks they'd like to sell to me?
    (asked a few paint shops/painters...no luck so far)

Page 2 of 2 FirstFirst 12

Similar Threads

  1. Shop vac cyclone really inefficient
    By qwertyu in forum WOODWORK - GENERAL
    Replies: 30
    Last Post: 4th October 2019, 11:06 PM
  2. pail collapse cyclone shop vac
    By qwertyu in forum DUST EXTRACTION
    Replies: 13
    Last Post: 30th January 2019, 09:26 PM
  3. Shop Vac + Cyclone - Does size of Shop Vac unit matter
    By Sebastiaan76 in forum DUST EXTRACTION
    Replies: 4
    Last Post: 8th December 2013, 11:04 AM
  4. Shop vac vs mini cyclone
    By planetjag in forum DUST EXTRACTION
    Replies: 28
    Last Post: 3rd May 2008, 01:07 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
  •