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Type: Posts; User: BobL

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  1. Thread: 2hp DE Build

    by BobL
    Replies
    8
    Views
    225

    if the bin over fills or there is some sort of...

    if the bin over fills or there is some sort of (usually major) pressure failure of the bin the the sawdust and any bits of timber will not settle out and come straight through the cyclone to the...
  2. Thread: 2hp DE Build

    by BobL
    Replies
    8
    Views
    225

    That would be pretty exxy as its usually sold in...

    That would be pretty exxy as its usually sold in large sheets. If the DC was always used in a closed enclosure where it is unlikely to be knocked I would even consider using 1mm PC. From memory a 1.2...
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    Anyone spending $17k for a shed - I'd call that...

    Anyone spending $17k for a shed - I'd call that serious :)

    When I advise people on setting up DCs in home workshops I usually suggest allowing ~for a nominal 10% of the cost of Buidling and...
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    Your Delta connection diagram looks correct to me...

    Your Delta connection diagram looks correct to me - confirm with sparky.
    Have you confirmed each relevant bLack wire coil continuity with a multimeter, if so I'd be labelling each one.

    In...
  5. Replies
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    554

    I got the original idea from some I saw on motor...

    I got the original idea from some I saw on motor vehicle models



    Just a heads up that a single point airflow measurement in the middle of an insitu duct (ducting forming part of a working...
  6. Replies
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    554

    Work scrap bin See link referred to below ...

    Work scrap bin


    See link referred to below


    Link was provided in post #6
  7. Replies
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    554

    I keep at least 1 of my 5 dust particle monitors...

    I keep at least 1 of my 5 dust particle monitors running in the house and one running in the shed. Both are showing <1 g/m^3.

    Our floors are polished jarrah (no carpets) but we have two fluffy...
  8. Replies
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    554

    By all means use outlet and deflectors to direct...

    By all means use outlet and deflectors to direct flow but be careful about any throttling down of air flow because optimised fine dust extraction requires maximum flow.

    Instead of a candle...
  9. Replies
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    I agree with Chris Parks that given you already...

    I agree with Chris Parks that given you already have a beefy DC then a CP style of hood or similar is the way to go.

    The best fine dust capture arrangement I have measured is a CP style hood PLUS...
  10. Replies
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    It depends on the wood but many exposed/raw woods...

    It depends on the wood but many exposed/raw woods will darken by applying most finishing products. Some like old chocolate jarrah will go almost black so make sure you try any product out elsewhere...
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    Thinner slabs does mean more warping especially...

    Thinner slabs does mean more warping especially if they are poorly stored - see below

    But thickness should depend in part on potential use.
    If you want boards then 50 or 55 mm mm will shrink by...
  12. Replies
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    VFD install summaries...

    VFD install summaries

    If you take a close up photo of the motor name plate we can provide more Information on the suitability of the motor.
  13. Replies
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    177

    Installing exhaust fans at opposite ends off a...

    Installing exhaust fans at opposite ends off a shed and having them both exhaust outwards would mean they could be fighting each other for air and dust.
    It's usually better to have a large opening...
  14. Replies
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    677

    Good Sammys will take electricals here in WA as...

    Good Sammys will take electricals here in WA as they have team off volunteer sparkies that test and tag the gear.

    However, the gear has to be in working condition and in some cases are close to...
  15. Thread: Extraction Layout

    by BobL
    Replies
    4
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    178

    As it's not that big a shed I'd keep it simple by...

    As it's not that big a shed I'd keep it simple by running a trunk line from the DC across the middle of the lower half of the shed above the TS and BS and use Y's for take offs to the other Machines.
  16. Replies
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    379

    I doubt the metal tubes can be bent but the...

    I doubt the metal tubes can be bent but the connected silicone tubes are of course easily bent and could be housed inside an appropriate streamlined housing. The first thing I want to do is just see...
  17. Replies
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    379

    I assume you mean of the pitot tube? if so 4.0 mm

    I assume you mean of the pitot tube? if so 4.0 mm
  18. Replies
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    379

    The Pixhawk sensor and pitot tube turned up...

    The Pixhawk sensor and pitot tube turned up today.
    Boy is it small.
    The LR44 cell has nothing to do with it , I just included iti in the photo to show scale.

    No I'll have to do something wth...
  19. Replies
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    Tools for mens sheds

    Got a call from my daughter-in-law last week to see if I wanted to run triage on the old tools in her deceased Grandfather's shed so I went around on Sunday with my son and had a look. Mostly older,...
  20. Thread: complete noob

    by BobL
    Replies
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    448

    Well at least that's better than the other way...

    Well at least that's better than the other way around :)
  21. Thread: lathe lighting ?

    by BobL
    Replies
    30
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    2,079

    My experience is that LED or fluoro spots are...

    My experience is that LED or fluoro spots are more of a problem in this regard than extended light sources like tubes, even less with multiple tubes.

    Directly above my WW lathe I have a pair of...
  22. Replies
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    FWIW the Sheppach at the mens shed lasted about 3...

    FWIW the Sheppach at the mens shed lasted about 3 months (during which time it was heavily used) before the motor died. It could have been a "one of" , and I also cannot vouch for the (lack of)...
  23. Thread: PVC pipe setup

    by BobL
    Replies
    27
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    1,173

    [QUOTE=qwertyu;2170655]wow the ezi-duct is...

    150 mm duct and fittings are cross compatible with DWV. There's no such thing as 100 mm stormwater (closest is 90 mm stormwater).
  24. Thread: PVC pipe setup

    by BobL
    Replies
    27
    Views
    1,173

    [QUOTE=qwertyu;2170655]wow the ezi-duct is...

    150 mm duct and fittings are cross compatible with DWV. There's no such thing as 100 mm stormwater (closest is 90 mm stormwater).
  25. Replies
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    296

    1.5 F should be OK. Using a cap of a higher...

    1.5 F should be OK.
    Using a cap of a higher (but not lower) Voltage is also permissible.

    Given the smallish size of cap it sounds more like it is a "run" rather than a start cap, if so the...
  26. Replies
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    I agree with this but as Mark says he's putting...

    I agree with this but as Mark says he's putting his machines on wheels he should be able to move things around to suit.

    FWIW Although I have several machines on wheels or plastic skids I'm not a...
  27. Thread: PVC pipe setup

    by BobL
    Replies
    27
    Views
    1,173

    Using a 90 on a terminal Machine is no biggie as...

    Using a 90 on a terminal Machine is no biggie as a 90 is easy to remove if the trunk/main duct needs extending.

    Bearing in mind that even blanked off junctions add further to turbulence and...
  28. Replies
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    677

    The age and symptoms suggest it's blown the...

    The age and symptoms suggest it's blown the commutator - bin job i'm afraid.
  29. Thread: PVC pipe setup

    by BobL
    Replies
    27
    Views
    1,173

    The least resistive transition from 200 to 150 mm...

    The least resistive transition from 200 to 150 mm is a tapered transition. A rule of thumb is the translition length should be about 10 duct diameters but this can be difficult to make and fit into...
  30. Thread: Damper

    by BobL
    Replies
    13
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    328

    SWMBO has done a very similar version in our camp...

    SWMBO has done a very similar version in our camp oven with black olives and garlic.
    The smoke imparts an interesting added flavour.

    467313
  31. Replies
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    379

    Thanks It's also that you said it was a a 2...

    Thanks

    It's also that you said it was a a 2 psi sensor?


    I agree about the noise issue. With my DC pressure sensor I have the sensor right alongside the MCU and run 1/4" irrigation tubing the...
  32. Our "beer" fridge is always kept full. When I...

    Our "beer" fridge is always kept full.

    When I say "beer" it only has about a 6-pack worth of beer in it
    The remainder consists of about 2 dozen bottles of wine for SWMBO, a few cool drinks (for...
  33. Replies
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    Good to hear you escaped the fires.

    Good to hear you escaped the fires.
  34. Replies
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    379

    The kit I looked at said; Featuring a...

    The kit I looked at said;
    Featuring a Measurement Specialties 4525DO sensor, with 1 psi measurement range (roughly up to 100 m/s or 360 km/h or 223 mp/h), the Pixhawk Airspeed Sensor Kit enables a...
  35. Replies
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    As I said above "Their geometry means they don't...

    As I said above "Their geometry means they don't immediately suit duct air speed measurements"

    A bent pitot tube would be better since it enables easy orientation directly into the air flow and...
  36. Replies
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    407

    Leather (rawhide) has been a used for a long time...

    Leather (rawhide) has been a used for a long time (I've seen a leather lined vice in a medieval era luthiers workshop in northern Italy) and is what I lined my main bench vices faces with 14 years...
  37. Replies
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    Interesting air flow sensor developments

    Developments in drone technology has resulted in some interesting new mini sensors arriving on the scene.
    Air speed sensors kits like this small pitot tube, pressure sensor and ADC look like they...
  38. Replies
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    482

    There is usually (sometimes quite a large) a...

    There is usually (sometimes quite a large) a difference between optimum bench heights and machine working surface heights.

    I knew I wanted my bench tops at more than 900 mm high so I made my first...
  39. Yep 'New Posts', lists all posts for the last few...

    Yep 'New Posts', lists all posts for the last few days and will also tell you what new posts have appeared since your last visit to the "new posts" page.

    I have the new posts page permanently...
  40. Replies
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    My take on heights is that it should most of all...

    My take on heights is that it should most of all suit the specific individual using the machinery.

    Some examples.
    With a DP I like to be able to easily look down onto the locating mark of the...
  41. Replies
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    398

    I finally got around to assembling a Li-ion...

    I finally got around to assembling a Li-ion battery pack consisting of a pair of (18650 3.7V Li-ion) batteries in series, in turn in parallel with another two batteries in series.
    Fully charged...
  42. Thread: Saw blade cleaner

    by BobL
    Replies
    20
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    772

    How did you do it - wipe on rub of? If so I am...

    How did you do it - wipe on rub of? If so I am not surprised they did not work.
    I found the leaving the blade to soak overnight works to loosen hardened sap.
    Even coffee grounds soaked in hot...
  43. Replies
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    31,055

    Saw specialist and GP who now both reckon its...

    Saw specialist and GP who now both reckon its gout so now I'm on two anti inflammatories. Not much improvement after two days.
  44. Replies
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    690

    WEST AUST New in the USA they cost about US$250 so they...

    New in the USA they cost about US$250 so they probably sold for ~AU$500 and this website says AUS$518 see Delta SA350K Spindle Sander Comes with a Smooth Running Motor and Dust Bag
    If its in good...
  45. Thanks for that info. I agree the averaging...

    Thanks for that info.


    I agree the averaging capabilities of the Testo are very useful but I just realised that the max air speeds (3300 fpm) in your 150 mm duct is considerably lower than mine...
  46. This is a good point worth raising but I have not...

    This is a good point worth raising but I have not seen this problem probably because the air temperature outside my ducts don't differ significantly from inside the duct ,and because I use a 240 mm...
  47. I'm not sure if this feasible but what DC volts...

    I'm not sure if this feasible but what DC volts does each panel output, You may be able to reconfigure their connections so as to completely by pass the inverter and use a DC motor driven a fan(s)....
  48. Thread: PVC pipe setup

    by BobL
    Replies
    27
    Views
    1,173

    Retrofitting is pretty easy - shop around and...

    Retrofitting is pretty easy - shop around and make up adapters as required.

    The 1 and 5 micron ratings are nominal but once either the bags or pleated filters (PFs) are conditioned the ACTUAL...
  49. Replies
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    After yesterday's walk my ankles and shins...

    After yesterday's walk my ankles and shins continued to get sorer during the day and by the end of the day were worse than ever but again with assistance from analgesics, and some ice packs, I...
  50. Thread: PVC pipe setup

    by BobL
    Replies
    27
    Views
    1,173

    There's no way to reduce the number of bags and...

    There's no way to reduce the number of bags and not lose suction. Also adding a cyclone will reduce flow - more so it its a after market DC. To minimise flow loses cyclones need to be properly paired...
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