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  1. #1
    Join Date
    Aug 2018
    Location
    Perth (WA)
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    4

    Default Triton Work Centre 2000 saw dust collection + 3d printed parts and Airbox

    Hi Everyone,
    I thought I'd share my latest project which was setting up some decent dust/chip extraction on a Triton Work Centre 2000.
    I've built a box around the saw to capture all the sawdust and I made an Airbox around the end of the saw to divert the air. The main objective was to allow clean, unrestricted air to the saw motor while maintaining the ability to change the saw depth of cut. The air inlet and ducting is 150mm. The Airbox was printed in PETG 1mm thick (it's tough and flexible plastic)
    This has worked so well, almost too well as there is now a significant vacuum on the table (from the saw slot and the slot above the saw motor) making it difficult to slide sheets of ply wood across it as they get vacuumed to the table. I’ll have to do some mods to reduce this and allow a little more air flow. The chip extraction is outstanding.
    Technical Data: Using an anemometer I measured the airflow through the saw with no restrictions (~4.00m/s), I then measured it after using the Airbox to offset the direction (3.75m/s). There is a very minor reduction in airflow. I’ve noticed with the 2hp extractor running there is a draft being sucked through the saw while it off. I haven’t measured it though.

    Dust Control Detail: For those interested I use the Work Centre outside and I’ve got a 2hp dust extractor setup with a 1 micron pleated filter, I use a 75cm fan to create a breeze in the direction of the prevailing in wind.

    Parts:
    7mm ply wood
    Airbox 3d Printed using Translucent PETG in 3 parts (glued together with Aralidte)
    3d Printed 150mm Air Inlet flange
    PVC 150mm flexible ducting
    7mm Raven door seal foam
    Left over foam from something we purchased
    Big Gulp Dust Chute
    2 x 3d Printed Sliding latches with 8mm offset using PLA

    Also - I don't know why the last 4 pictures are upside down, they are correct on my PC but when loaded they flip. I'll have to figure that out later.

    Cheers
    Flatstrap
    Attached Images Attached Images

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  3. #2
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,757

    Default

    Welcome to the forums flatstrap. and Nice work with the 3D printer especially to generate a 150 mm diameter extraction port.

    Not sure how you measured the 4 m/s, maybe see DRAFT: FAQ - Dust Extraction (Practical Aspects)

    It looks like there is a hopper underneath the cabinet - are you still using that as well or do you just extract from the your new port?

  4. #3
    Join Date
    Aug 2018
    Location
    Perth (WA)
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    4

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    Hi Bobl,
    Here's a pic of the air speed using a direct 150mm port.
    All the dust is extracted through the "big gulp" hopper via a 100mm line to the 2hp dust extractor. It is very nice to have a clean work space!

    Regards
    Flatstrap

    Sent from my SM-G930F using Tapatalk

  5. #4
    Join Date
    Feb 2006
    Location
    Perth
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    27,757

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    Thanks for the photo.

    The how to measure air flow in DRAFT: FAQ - Dust Extraction (Practical Aspects)describes why using propellor based anemometers and just holding then in front of an open duct is not an accurate way of measuring air flow. There's detailed info in that link showing more accurate ways of measuring air flow for dust extraction.

    Even if the 4m/s is accurate
    4m/s x 3.3ft/m x 60s = 800 ft/min through a 6" duct = 157 CFM which is about the same as an quality vacuum cleaner can generate.

    Using 4" ducting a stock 2HP DC should be able to pull 400 CFM so your setup is significantly hampering the flow from the DC.
    In terms of fine dust collection even 400CFM is still short by about 400 CFM needed to collect fine (invisible) dust from a TS.
    In case you are unaware of this, to see how to upgrade your 2HP DC to pull 800+ CFM see The Generic 2HP DC

    Just boosting the DC performance won't be enough to overcome the restrictions to air flow on most setups. To get higher air flows from a TS also requires flanges and port arrangements that let enough air get in so it can scavenge the fine dust out. Chip collection may then be reduced but given that chips have a much lower health significance this should be less of a worry.

    Aside from the need for gaps to let air in, to get fine dust out the entire air path needs to be as unrestricted as possible. Once enough air can get in the next major restriction to flow is the use of flexy ducting and the floppier it is the more it restricts the flow. Although I have not tested the white flexy you have used I can tell that it is quite floppy so it will be restrictive so the more the pathway can be built with hard PVC (or stiffer/smoother flexy) the better.

    Have a look through the dust forum to see ideas for improving fine dust collection from TS. The overhead guard is a weak point in terms of fine dust on most TS. The more blocked up the air pathway is into the underside of the cabinet the more fine dust is dragged out by the blade from the underside of the the cabinet to above the cabinet.

  6. #5
    Join Date
    Feb 2015
    Location
    Strathalbyn South Australia
    Posts
    1,141

    Default Triton Work Centre 2000 saw dust collection + 3d printed parts and Airbox

    Bob, by the look of the image with the air speed meter he is measuring the air going to the motor not the ducting.

    Welcome to the forum flatstrap! Nice work!

  7. #6
    Join Date
    Aug 2018
    Location
    Perth (WA)
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    Hi Cal,
    Thanks mate - you're onto it. I thought the pictures would help with understanding what's going on. The fusion of 3d printing and wood/metal work really opens up the ability to create solutions to what may have been difficult in the past.

    Hi Bob, thanks for your info. I like the detail. I've done a fair amount of research about dust collection on this forum and others and also Bill Pentz site. It's all very interesting. I do have plans for a few tweaks to the DC in the future as capital and time allows.

    Cheers
    Flatstrap

    Sent from my SM-G930F using Tapatalk

  8. #7
    Join Date
    Feb 2006
    Location
    Perth
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    27,757

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    Quote Originally Posted by Flatstrap View Post
    Hi Cal,
    Thanks mate - you're onto it. I thought the pictures would help with understanding what's going on. The fusion of 3d printing and wood/metal work really opens up the ability to create solutions to what may have been difficult in the past.
    OK I now understand what you are doing.

    I have measured the air flow through a number of power tools (mostly sanders) using and I typically get 75 CFM and even though I have not measured any circular saws I can't imagine they would would be much more. (I would need a shroud like your 3D printed one to mate a test duct to it for testing). Despite this some air flow is better than nothing. I still recommend some gaps in your cabinet, maybe just under the table to allow more air into the cabinet so the DC can pull more air though the big gulp exit.


    Hi Bob, thanks for your info. I like the detail. I've done a fair amount of research about dust collection on this forum and others and also Bill Pentz site. It's all very interesting. I do have plans for a few tweaks to the DC in the future as capital and time allows.

  9. #8
    Join Date
    May 2013
    Location
    Rockhampton QLD
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    68
    Posts
    2,335

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    Welcome to the forum Flatstrap.

    Ross

  10. #9
    Join Date
    Aug 2018
    Location
    Perth (WA)
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    Thanks Ross

    Sent from my SM-G930F using Tapatalk

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