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Type: Posts; User: BobL

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  1. Replies
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    Which US made cyclone uses mm? PVC ducting...

    Which US made cyclone uses mm?

    PVC ducting labels was not mean to be actual but "indicative" or "nominal" sizes like a label. In the same way as "gauge" numbers ,or numbered drill sizes, or even...
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    All PVC is strangely sized - its been that way...

    All PVC is strangely sized - its been that way for decades
    Here is chart of PVC pressure pipe - there is only one size that seems to be close to what its name indicates

    464315
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    395

    Why the "dismay"? AS long as all the fittings and...

    Why the "dismay"? AS long as all the fittings and junctions fit does it really matter?
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    395

    That's correct. It's been discussed a number of...

    That's correct. It's been discussed a number of times on the forum.
    Same as 150 mm stormwater is not 150 but 154 mm ID and 160 mm OD.

    See PVC PIPE - STORMWATER PIPE - Pipe Online - Retic Fittings...
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    It doesn't surprise me. 4" ducting is very...

    It doesn't surprise me. 4" ducting is very restrictive and it sounds like you are using too high an expected air flow and air speeds. What Air flow and speeds are you using ?



    If you provide a...
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    We had similar problem at the Mens Shed on an...

    We had similar problem at the Mens Shed on an old donated Table Saw with no arbor locking pin. We took the belt off the blade pulley and were able to get a HD Strap wrench node the cabinet and hold...
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    You can always mix in in some styrofoam beads...

    You can always mix in in some styrofoam beads with the soil to reduce the weight.
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    Nice job. FWIW for maximum fine dust...

    Nice job.

    FWIW for maximum fine dust extraction the optimum position for the exit port on a TS OH hood is towards the front of the blade. Air flow is vastly improved by leaving the back of the...
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    [/LIST] By way of a reference I use a 500 x...

    [/LIST]

    By way of a reference I use a 500 x 250 mm DC enclosure exhaust port and that produces a pressure loss of ~0.06" of WC. Exhaust port cross sections and pressure losses are not...
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    551

    Wall friction increases with longer runs but that...

    Wall friction increases with longer runs but that tends to be a minor effect. Usually longer runs contain more bends and junctions which add to turbulence and all that increases flow. As I have...
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    I have 13 year old Sherwood 10" unit that also...

    I have 13 year old Sherwood 10" unit that also has an 1100W motor. My manual says the cutter block speed is 3750 rpm so you should be able to work out from the drive and cutter block pulley ratios if...
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    I think the hardest thing would be finding...

    I think the hardest thing would be finding someone who wants to do this on a regular basis. The great majority of men’s shed members are irregular attenders on a needs/project basis and for that...
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    I detest plane noise and I've tried, owned, lost...

    I detest plane noise and I've tried, owned, lost and even worn out, various plugs and noise cancelling muffs (including Bose and Sennheiser) but interestingly none of them beat the outright sound...
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    I'm pretty sure the owner of the property/gear...

    I'm pretty sure the owner of the property/gear will have to have at least some insurance since it's largely what they "say-goes" with regards to the shed and machines. The other thing to consider is...
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    690

    Yep I have tried one and I understand how they...

    Yep I have tried one and I understand how they work and but their angles are not optimised either for fast cutting or long term chain wear.

    Optimised long term cutting performance is not achieved...
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    690

    This will be fine for an electric chainsaw...

    This will be fine for an electric chainsaw especially when the chain is newish and gardening work.

    The main issue with this tool is that as the chain wears it will not remove enough from the depth...
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    Thanks for the info.

    Thanks for the info.
  18. Replies
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    601

    I think these are over estimates. A a general...

    I think these are over estimates.

    A a general rule, 3P to SP current requirement conversions are done multiplying by 1.73, so a 3P 6.5A/4HP machine would draw 6.5 x 1.73 = 11.3A and 5 x 1.73 =...
  19. Even if someone knows what they are doing advice...

    Even if someone knows what they are doing advice across on connection is too difficult and risky to provide across the internet.
    There has to be a reason that the compressor was left in that state...
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    So sorry to hear this.

    So sorry to hear this.
  21. Replies
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    Sorry to appear negative but I'd say that your...

    Sorry to appear negative but I'd say that your dreams are unlikely to be met with that dust collector in that size shed.
    For the same $ you could have purchased a ClearVue which would have been...
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    601

    The size of old motors is not a very good...

    The size of old motors is not a very good indicator of their power rating.
    eg We had an old DP at the mens shed powered by a motor that looked like a 3HP but turned out to be 1/2HP.

    The 600kg...
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    If it was a low HP motor the individual coil...

    If it was a low HP motor the individual coil resistances can provide a clue to the power rating.
    For example a 1/2HP motor has a typical coil resistance of ~20Ω, a 1 HP ~10Ω, and a 2HP has a...
  24. Replies
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    Agree, the stickers also need to be aligned...

    Agree, the stickers also need to be aligned vertically, especially those on the bottom of the stack.

    Given the hardness of what you are cutting I would go at least for bimetal.
    Are you planning...
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    I don't use a wish list as it would be too long :D

    I don't use a wish list as it would be too long :D
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    I spent some 35 years testing and building dust...

    I spent some 35 years testing and building dust free laboratories as part of my former day job and just wanted to say this is not as easy as it seems. We spent a lot of time modelling and...
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    From time to time I've kept a spreadsheet of my...

    From time to time I've kept a spreadsheet of my orders so I know what's arrived, what's to come and nominally when it should arrive etc

    The items are colour coded, Blue is on order, green is...
  28. Thread: Buffing Machine

    by BobL
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    505

    Looks good Cliff. I have a question about what...

    Looks good Cliff. I have a question about what sort of steel the spindle is made of? I realise you are polishing wood but unsupported ordinary steel 1" spindles that long would not normally be used...
  29. Thread: Is bigger better

    by BobL
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    339

    The size of the drum is largely irrelevant in...

    The size of the drum is largely irrelevant in terms of overall dust collection. Of greater significance is the Standard 2HP DCs are underspecced for wood dust collection AND using ANY cyclone on a...
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    Not a problem with NBN but possibly related It...

    Not a problem with NBN but possibly related
    It all started when I replaced the SP pump on my coffee machine with a 3P motor/pump and VFD controlled by a micro controller (MC).
    The problem was the...
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    It's going to take decades but if you thin out...

    It's going to take decades but if you thin out some of the trees they will grow less tall and then are more likely to put those resources into gain in girth.
  32. Replies
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    Good work, but it looks to me like you have heaps...

    Good work, but it looks to me like you have heaps of room in your shed - lots of floor space still showing :)
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    A chain grinder can be used on standard rakers...

    A chain grinder can be used on standard rakers but for a number of reasons I stopped using grinders on most of my chains.

    1) I don't file my cutters to the same length (I stopped doing that back...
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    Here is my testing of these filters....

    Here is my testing of these filters.
    https://www.woodworkforums.com/f200/flow-loss-using-dust-deputy-206585/4#post1962225

    The first part of the post involves using a Dust deputy. Skip to the...
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    It's not necessarily the same factory. Because...

    It's not necessarily the same factory.

    Because of a lack of IP regs, budget tool/machine (in fact pretty well everything) plans/templates and even castings are blatantly copied so everything looks...
  36. Replies
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    Remove and fit a bell mouth hood - see sticky at...

    Remove and fit a bell mouth hood - see sticky at top of duct forum one how to modify a generic 2HP DC. If you don't make the mod then the 6" ducting will be wasted. Also 6" ducting should right up to...
  37. Replies
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    Yep, had another blood test and my Ca and Ace...

    Yep, had another blood test and my Ca and Ace levels are still up so specialist said restart the higher doses of Cortisone and Pacquenil, and Blood tests every two weeks. I started taking the higher...
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    All the term "Stainless Steel" (SS) means is that...

    All the term "Stainless Steel" (SS) means is that it usually contains more chromium than other steels which makes it rust resistant (NB not necessarily rust proof). As a result there are almost as...
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    GORE WARNING Wood working gear can be very deceptive in terms...

    Wood working gear can be very deceptive in terms of injury rates.

    More pro wood workers are injured by both TS and BS , 30% and 8% respectively for pros, versus 18 and 5% for Amateurs.
    This is of...
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    That is not my understanding - over the last few...

    That is not my understanding - over the last few years industrial diamonds as used on grinding wheels have become relatively inexpensive and are not the same as CBN which is more expensive than...
  41. Thread: Bell mouth hoods

    by BobL
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    1,595

    There have been quite a few investigations into...

    There have been quite a few investigations into the optimum shape which in the papers I have read is supposed to be a long trombone shape but that is impractical to use in a workshop or in the...
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    We had the same prob with out previous dog but...

    We had the same prob with out previous dog but fortunately there were only 5 steps. I found a crappy piece of ordinary old carpet and cut off a strip about 250 mm wide and screwed it to one side of...
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    568

    A local steel merchant has some very interesting...

    A local steel merchant has some very interesting shapes of scrap available from time to time.
    They do a lot of laser cutting of holes in various materials so they generate lot of scrap discs. in...
  44. Thread: record vice

    by BobL
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    451

    Yep you have to get rid of oil and grease. I'd...

    Yep you have to get rid of oil and grease.
    I'd do something like.

    Take it apart
    Wipe off excess grease and oil.
    Simmer in large pot with some cheap detergent (clothes washing detergent) is...
  45. Replies
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    You could be right Neil, except it's just rewet...

    You could be right Neil, except it's just rewet my appetite for it :oo:

    I also decided to measure my rakers on that chain I was using to mill the Sheoak and found they were way too high so no...
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    Thanks for the review Neil - v very in treating....

    Thanks for the review Neil - v very in treating.


    My 180g CBN wheel is almost 5 years old and is currently removing tool steel a lot slower than it did when it was new.
    Some of this may be due...
  47. Replies
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    1,246

    Where possible I have this weird thing that while...

    Where possible I have this weird thing that while making a tool it helps to make itself. I did this with my bench by assembling the basic frame then added the vice and use the vice while making the...
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    I've had two of these on my bench since early...

    I've had two of these on my bench since early 2006. They started out OK to begin with but recently I've noticed the vice on the front of the bench (which has had about 100x more use than the one on...
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    I found it quite easy to do the glue up with the...

    I found it quite easy to do the glue up with the vice on the bench. Just slip a piece of glad wrap in between the leather pieces so they don't stick together.
  50. The problem with epoxies is that they are...

    The problem with epoxies is that they are insulators so don't conduct heat all that well. The way around this would be to use as thin a layer of epoxy as possible and to use a high temperature metal...
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