Search:

Type: Posts; User: BobL

Page 1 of 100 1 2 3 4

Search: Search took 0.39 seconds.

  1. Replies
    26
    Views
    2,092

    Initially I only put a tacho on my ww lathe...

    Initially I only put a tacho on my ww lathe because I ordered 4 of them at the same time and after fitting one each to my MW lathe, DP and Metal Mill I had a spare. The tachos I bought were from...
  2. OK not the gismos you requested but this is how I...

    OK not the gismos you requested but this is how I did mine.

    492744

    The table is a special to hold my 35kg chain saw mill while servicing and re-fueling etc- the plastic caps act as sockets to...
  3. Replies
    2
    Views
    119

    Absolutely. An alternative is to connect a bit...

    Absolutely.
    An alternative is to connect a bit of flexy to the ducting and add a length of 4" ducting and use it like a vac. This is better than a broom which generates heaps of fine dust during...
  4. Thread: dream time ideas

    by BobL
    Replies
    3
    Views
    80

    I would use threaded couplers and screw caps for...

    I would use threaded couplers and screw caps for bases. Theyíre more expensive but heavier and so will be more stable. They can be castellated to make rooks. The couplers can also be used as ďheadsĒ....
  5. Replies
    11
    Views
    246

    I remember using poly foam as lossy formers when...

    I remember using poly foam as lossy formers when I worked in high rise concrete form work 40 years ago. Quite complex service ducts, even some AC ducts were packed with foam and concrete poured over...
  6. Replies
    11
    Views
    246

    How rough would fiberglass over foam be?...

    How rough would fiberglass over foam be? Smoothness become really important on elongated slots which have a high perimeter to cross sectional area ratio.
  7. Replies
    11
    Views
    246

    Slicing the former up would work BUT The...

    Slicing the former up would work
    BUT
    The joints would need to be very smooth because when the PVC cools it shrinks and would force the pieces together.
    Slcing would also have to allow for kerfs.
  8. Replies
    11
    Views
    246

    The small adapter definietely - although I'm...

    The small adapter definietely - although I'm certain I could beat most of them in terms of time and cost.
    The bigger one - not many consumer level printers have a big enough foot print - yet.
  9. Replies
    11
    Views
    246

    I've made a couple that way but it doesn't work...

    I've made a couple that way but it doesn't work when the narrower dimension of the rectangular end is smaller than the diameter of the round.

    Check this out.
    Its my attempt to make a PVC former...
  10. Replies
    11
    Views
    246

    Square to round adapters

    Anyone wishing to make custom "square to round" adapters for machinery may like to take a look at this Youtube video clip by Ron Covell.

    https://youtu.be/9wR4mj3M3q0

    The first half shows how to...
  11. Thread: New shed costs

    by BobL
    Replies
    14
    Views
    364

    I also did all my own site prep but there's no...

    I also did all my own site prep but there's no way I could no it now. Slightly sloped block turned into ~64 (72 and 64 kg) limestone block retaining wall and 8 cubic metres of sand barrowed 60m...
  12. Thread: New shed costs

    by BobL
    Replies
    14
    Views
    364

    This is a bit of a how long is a piece of string...

    This is a bit of a how long is a piece of string question because design and quality affects pricing and need to know the complexities of the site (eg what's there, slope etc).
    You best be is to get...
  13. Thread: Hello from WA!

    by BobL
    Replies
    8
    Views
    298

    I stand corrected - I've visited quite a few...

    I stand corrected - I've visited quite a few community sheds in the last few years and get many of them confused.
  14. Thread: Hello from WA!

    by BobL
    Replies
    8
    Views
    298

    Welcome, look forward to seeing your output. I...

    Welcome, look forward to seeing your output.

    I note you put Perth as your location but if Wandi wood turners are around the corner isn't that more like Mandurah than Perth?
  15. Replies
    135
    Views
    188,943

    Thanks but before I take any more credit here,...

    Thanks but before I take any more credit here, when I say "we" in those posts above, the work of putting the music and photo stuff together was done by my sisters. All I did was provide one of the...
  16. The most effective thing I found for this was a...

    The most effective thing I found for this was a $3 pressure/Vacuum switch attached between the BG and the machine.
    This prevents some machines from starting unless I have the blast gates open and...
  17. Replies
    30
    Views
    740

    I think you are over worrying a bit. If you...

    I think you are over worrying a bit.

    If you forget to close the blast gate (BG) on one machine (A) while using another, slightly more dust will escape from A at source but some of the escaped dust...
  18. Replies
    30
    Views
    740

    If you're the only one ever using your workshop...

    If you're the only one ever using your workshop then 6" ducting is in practice all you will need. Even a CV max can still only pull a max of about 1250 CFM at 50Hz through a single 6" ducting and...
  19. I found Its just easier to turn the fans on...

    I found Its just easier to turn the fans on before making any dust.
  20. Replies
    30
    Views
    740

    Given the size of the shed and grunt of the CV it...

    Given the size of the shed and grunt of the CV it doesnt matter that much which arrangement you use.

    I would use Option 1 just because of the shorter runs - but put at least one spare Y pointing...
  21. Replies
    135
    Views
    188,943

    Thanks Lance, we've tried this a few times in...

    Thanks Lance, we've tried this a few times in different ways but mum was never one to listen to any sort of music even when she was much younger. Most of the family (9 siblings) is quite musical but...
  22. Replies
    26
    Views
    2,092

    Nice work with the switches Lance. Agree...

    Nice work with the switches Lance.



    Agree about the speeding up as workpiece gets closer to round.
    A couple of other ways I use changes of speed on the fly are (I also do these on the MW...
  23. Replies
    135
    Views
    188,943

    Went to see Mum this morning after being away for...

    Went to see Mum this morning after being away for a week. The first thing Mum usually asks is if I can take her to see her parents. I explained for the umpteenth time that they had died many years...
  24. Replies
    12
    Views
    408

    Just did the weight/length comparison of the 6"...

    Just did the weight/length comparison of the 6" galv ducting versus the 6" stormwater PVC.
    Galv was 2.62 kg/m, PVC was 2.25 kg/m so PVC is about 15% lighter.
  25. Replies
    135
    Views
    188,943

    Sorry to hear that. It sounds terrible but at...

    Sorry to hear that. It sounds terrible but at times I wonder if this would be better for my mum as well. Her paranoia, confusion and discomfort are noticeably increasing every few months and she is...
  26. Replies
    12
    Views
    408

    Thanks. I don't usually pitch in and participate...

    Thanks. I don't usually pitch in and participate in these installs but as these folks have been our friends for ~40 years so I though I would make an exception. The farm itself is "neat as a pin" and...
  27. Replies
    9
    Views
    281

    If you have chuck jaws that will clamp down on a...

    If you have chuck jaws that will clamp down on a 4 sided drive shaft and a proper impact driver the following works a treat. Do not lock the belt or chuck in any way - leave it free spinning. Insert...
  28. Replies
    18
    Views
    499

    It depends what dust has settled out of...

    It depends what dust has settled out of suspension in the trunk line. To pick up the denser larger more compact chip/dust requires ~4000 FPM so with a 12" trunk line that requires a nominal 3142...
  29. Replies
    12
    Views
    408

    I measured the old Planer/Thicky outlet (see...

    I measured the old Planer/Thicky outlet (see picture below) and it was only 114mm (or 102 cm^2)
    So the new opening (150mm diameter = 176 cm^2) is substantially bigger.

    492360

    Had a bit of...
  30. Replies
    4
    Views
    205

    Using one or even a few fans never results in...

    Using one or even a few fans never results in even one real room air change. To achieve real room air exchange requires a wall of fans at one end of a shop and an opposite wall of air entry ways. The...
  31. Replies
    4
    Views
    205

    It depends on the real CFM. An 8" fan should be...

    It depends on the real CFM. An 8" fan should be able to deliver inside the CFM range you are after.


    In these cases the damper just seems like a crude way of regulating the fan speed. Given "more...
  32. Replies
    12
    Views
    408

    The 125mm outlet was constructed of riveted on...

    The 125mm outlet was constructed of riveted on plastic.
    The rivets were drilled out revealing a (130 x165mm) or 214 cm^2 opening.
    The 125mm outlet was slightly smaller than 125mm, but assuming it...
  33. Replies
    18
    Views
    499

    Pity, until you swap the 4" to 6" on the bigger...

    Pity, until you swap the 4" to 6" on the bigger machines you won't be able to utilise the performance of the big impeller and cyclone.
    What effectively happens is the fine dust is not being...
  34. Replies
    12
    Views
    408

    Today we did 5 arms before we ran out of blast...

    Today we did 5 arms before we ran out of blast gates and 6" ducting.

    Bandsaw, Woodwizz, belt sander, SCMS and planer thicknesser.

    To go are Table saw, Spindle holder, lathe and spare.
    There's...
  35. Replies
    12
    Views
    408

    The photos I put up in the last post were about...

    The photos I put up in the last post were about work done 2 days ago - yesterday we installed the VFD and Trunk line.

    Before we could do that we had to dismantle the old 6 and 4" system.

    The...
  36. Replies
    12
    Views
    408

    Country CV install

    8 years ago one of the first things I did after I retired was help some friends setup a workshop on their farm about 450km away on the south coast.
    Some details about that with lots of photos are...
  37. Replies
    18
    Views
    499

    I think itís both Chris

    I think itís both Chris
  38. Replies
    18
    Views
    499

    While using any impeller will separate something...

    While using any impeller will separate something the BP designed impeller is really worth using since it pairs optimally with the BP cyclone design.
  39. Thread: HDPE joinery

    by BobL
    Replies
    9
    Views
    370

    Very little will stick to HDPE but we also used...

    Very little will stick to HDPE but we also used (MANy) tubes of silicone to seal HDPE boxes/joints at work. A physically stronger seal can be obtained by welding the HDPE. but this requires some...
  40. Replies
    23
    Views
    921

    I've been watching a few vids on this top and a...

    I've been watching a few vids on this top and a technical explanation for bubbles disappearing under pressure seems to be missing.

    I don't think the added pressure actually shrinks bubbles to...
  41. Replies
    6
    Views
    262

    It's not that unusual for large impellers to use...

    It's not that unusual for large impellers to use straight vanes. If they're made big enough and spun fast enough they can still move lots of air
  42. Replies
    6
    Views
    262

    To increase flow you'll need to spin the impeller...

    To increase flow you'll need to spin the impeller faster.
    The easiest way this can be dome is using a VFD.

    If your 4kW motor is already near its max current draw, running it at a higher speed may...
  43. FREE: VIC This is what I did with one of mine. 492010

    This is what I did with one of mine.

    492010
  44. DONE: All gone.

    All gone.
  45. Thread: HDPE joinery

    by BobL
    Replies
    9
    Views
    370

    Yes - you can even use wood screws if you don't...

    Yes - you can even use wood screws if you don't want to tap a heap of threads.
    To tap the threads I used a cordless screw driver with the clutch set on about 5 - drill the hole slightly smaller...
  46. Replies
    4
    Views
    315

    You could try some Oxalic acid - valuable from...

    You could try some Oxalic acid - valuable from Bunnings as Rust and stain remover

    https://www.bunnings.com.au/diggers-2kg-rust-and-stain-cleaner_p0960276
    They seem t0 only sell it in large packs...
  47. Replies
    2
    Views
    165

    Should be fine. I'd just use biscuits at the...

    Should be fine.

    I'd just use biscuits at the butt joints

    FWIW my 16 year old WW bench has just a single sheet of 19 mm ply - but it is supported by extensive 50 x 200mm and 50 X 100mm ribbing...
  48. Replies
    56
    Views
    2,584

    My experience is that everything gets covered in...

    My experience is that everything gets covered in dust and its hard to see what is going on visually - even a transparent strip up the side of the drum is not easy to see without looking up close.
  49. DONE: I'm still happy to collect a few names in case...

    I'm still happy to collect a few names in case the front runners don't end up taking them.

    Cheers
  50. DONE: I'll PM you with some details.

    I'll PM you with some details.
Results 1 to 50 of 5000
Page 1 of 100 1 2 3 4