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Type: Posts; User: BobL

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  1. Replies
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    I measured it to be closer to 9mm, it was about...

    I measured it to be closer to 9mm, it was about 8mm for the 3/8 regular and just under 7mm for the lo pro chain
    The BS I use is about 3mm.
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    It's actually not that much wider. It depends a...

    It's actually not that much wider.
    It depends a little on the top plate filing angle being used so comparisons need to be made using the same angle.
    Back in 2010 I measured lots of kerf sizes and...
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    I bought my used 3 Phase compressor from a sparky...

    I bought my used 3 Phase compressor from a sparky who said he was selling it because he had moved to a house that did not have 3 Phase. After the transaction was complete I asked him if he had heard...
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    Yeah its not going to help but if you can't do...

    Yeah its not going to help but if you can't do anything else you will have to live with it.
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    I wouldn't recommend putting the VFD in the...

    I wouldn't recommend putting the VFD in the enclosure. Every time you forget to empty the bin this can flood your enclosure and VFD with saw dust . We can talk all about how some users religiously...
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    When marking out crosses at the hole positions...

    When marking out crosses at the hole positions are using scratched into the workpieces and if the punch is sharp and the scratches are deep and clear enough, the punch tip can usually find the centre...
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    That's pretty standard price for 2.5" hose,...

    That's pretty standard price for 2.5" hose,
    Carbatech's is the same price, Timbecon has it slightly cheaper if you buy 3m.
    Don't forget that the clear 9or at least translucent) hose is more...
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    This is a bit of an old wives tale. The...

    This is a bit of an old wives tale.

    The physics says an explosion is near impossible for a number of reasons.

    1) As soon as the smallest unit of static charge is produced inside a duct it...
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    There is actually a valid reason for using a 240V...

    There is actually a valid reason for using a 240V VFD on a 3HP or less machine in a shed even if you do have 3 Phase and that is chances are that you don't have a lot of 3 Phase sockets and that they...
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    This info below the is present on the motor data...

    This info below the is present on the motor data plate indicates the motor can be easily converted in the mains/motor junction box but I have been caught out before - to be sure we need to see a...
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    STOP! NOT all 415V Three Phase (3P) motors can...

    STOP!
    NOT all 415V Three Phase (3P) motors can be driven at full power by a 240V VFD.
    BEFORE you buy you need to ensure the motor is able to be made compatible with a 240V VFD.
    You need to firstly...
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    In another thread on pleated filters (PiFs) it...

    In another thread on pleated filters (PiFs) it was discussed that if a needed to be held PFs down using ratchet straps, it may be that the PFs are clogged beyond the usual. maybe even beyond use....
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    ' Thanks Pete, They are made of ABS plastic...

    '

    Thanks Pete, They are made of ABS plastic which is fine.
    The 6" ports are US$10 if you buy more thane, so AU$14 plus shipping, can't imagine that being all that cheap.
  14. Yes a good deal but you are assuming 100%...

    Yes a good deal but you are assuming 100% recovery after it has dried, some will crack, some will twist, pest infection etc so this won't happen.
    Do you have a suitable place to dry it? Ideally out...
  15. Thread: Surprise!

    by BobL
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    61,683

    Ripping chain normally refers to a lower "top...

    Ripping chain normally refers to a lower "top plate filing" angle as Paul describes below. I 've milled around 30 logs up to ~35" wide with skip chain and found it made little difference conspired to...
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    The 4" ones look OK but I'd like to know the...

    The 4" ones look OK but I'd like to know the OD/ID measurement of the straight part. If its 4" OD then I will keep making mine if its 4" ID then they will be fine.
    The 6" ones don't look that good...
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    Yes - I will fix it in the above post.

    Yes - I will fix it in the above post.
  18. Thread: Surprise!

    by BobL
    Replies
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    61,683

    At those widths of cuts, standard cross cut chain...

    At those widths of cuts, standard cross cut chain should have no issues clearing the sawdust.
    I've made cuts up to 40" wide using standard cross cut chain with no sawdust clearing problems.
    All my...
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    BMHs are only really significant when the air...

    BMHs are only really significant when the air flow is high because the gains at low air speeds are minimal. If the openings in the cabinet are big enough then BMHs are not needed.

    I think a 6"...
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    Most of the flex to PVC joints in my shed are...

    Most of the flex to PVC joints in my shed are done using a PVC threaded capped coupler.
    photos here http://www.woodworkforums.com/f200/improving-machine-cabinet-dust-ports-187936/7#post2004505
    ...
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    I agree that would be the thing to do on the DC...

    I agree that would be the thing to do on the DC side but there would still need to be a current sensor installed on the tool power supply side of the operation so the current sensor could be hooked...
  22. It depends if you want the "entire log" milled as...

    It depends if you want the "entire log" milled as quarter sawn.

    If you want the whole log milled as quarter sawn it will be interesting to see what the miller charges for that (ie bit more work)...
  23. Replies
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    If you put some sort of a coarse mesh over the...

    If you put some sort of a coarse mesh over the holes that should prevents bits flying out.

    Venting the cabinet is just for that, Collecting sawdust off the blade should be handled via an...
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    How much was it to sharpen the blade?

    How much was it to sharpen the blade?
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    The BS5 is a good basic Machine, I like the way...

    The BS5 is a good basic Machine, I like the way the vice is stationary and the saw head turns to cut mitres.
    This is better than the other way around because it takes up less shed space.

    Band...
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    By the time power points and a box are added the...

    By the time power points and a box are added the price would come to about that of the Bunnings master/slave thingo. Not to mention the postage for the Kemo unit
  27. Replies
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    Yes it will be fine. Use a muffler or a...

    Yes it will be fine.



    Use a muffler or a baffle box. Do a search for muffler in the dust forum and you will get some ideas. At it's simplest it is a ~1.8m long x 400 x 400 mm play or MDF box,...
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    Isn't the missing board deliberate, ie so's you...

    Isn't the missing board deliberate, ie so's you can reach in from outside and grab something handy?
  29. Replies
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    A relative of ours lives on a block with a...

    A relative of ours lives on a block with a hankerchief garden. Immediately over the fence and uphill is the flat two storey side of the neighbours house with few windows and a full maze of externally...
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    Just replaced the hall effect AC current sensor...

    Just replaced the hall effect AC current sensor with the coil I described above and it works just as prototyped ie operating to the mA.
    I also added 1second start up delay to the slave power point...
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    If hand saws are sharp they produce mainly chips...

    If hand saws are sharp they produce mainly chips and very little fine dust.
    In the case of saw pits the wood was also usually green so that resulted in even less fine dust.
    Working in the saw pit...
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    Duct tape is good for inside but after a while...

    Duct tape is good for inside but after a while can start to look pretty ragged outside. I put some around a slightly exposed sheet metal edge on my main external door and it needs replacing.
  33. Thread: Routing aluminium

    by BobL
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    Nice work MD. My BIL is an ally boat (The...

    Nice work MD.

    My BIL is an ally boat (The longest one he has worked on was 80m long - see photo) builder and besides his MIGs and TIGs, his tool kit consists mainly of WW gear, 10" bandsaw,...
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    It depends on what size and length of stock you...

    It depends on what size and length of stock you are going to be cutting. If you intend ripping often with a 12" blade then I agree with the above.
    A 10" blade slow feed you can get away with a 2HP...
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    Thanks for the link. I have plenty of spare...

    Thanks for the link. I have plenty of spare mobile phone chargers but its good too know that low cost options are available.

    I have been experimenting with a coil from a VI panel meter and it's...
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    Looks useful Let me know if you need the...

    Looks useful


    Let me know if you need the links

    .

    The very cheap ($2) current sensor I'm using actually outputs around 100 mA when there is no current through the sensor, It's a +/-20A...
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    The photo was marked up for the testing against...

    The photo was marked up for the testing against the units from work that I posted on the MW thread.
    Testing few Mics and callipers
  38. Replies
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    That Jaycar one looks like good value but I also...

    That Jaycar one looks like good value but I also note it is being discontinued hence the low price - I also prefer slaves to have their own switches like the Bunnings one. These units are both...
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    Looks pretty straightforward, especially if no...

    Looks pretty straightforward, especially if no delay time or current measurement are involved, hence it also should work out a bit cheaper. I assume you will swap out the PS for a small (eg mobile...
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    FWIW a 5" hose can carry no more than about 770...

    FWIW a 5" hose can carry no more than about 770 CFM at the usual DC pressures, a 6" can carry ~1250 and a 4" can carry ~425 CFM.
    This assumes free flowing entry like a BMH, as soon as you connect it...
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    Most of the low priced (including Kingchrome)...

    Most of the low priced (including Kingchrome) digital callipers are all the same.
    What size are you looking at?

    I have 6 working pairs and they range from $35 for a 6" from H&F (currently $29 on...
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    Facebook as you would like to see it

    Upgraded my laptop and started using FB on the new one without pre-installing the browser extension (Fluff busting purity) that removes the garbage (adds, friend requests and all your friends inane...
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    Cheers WP. Yeah some of this is related to not...

    Cheers WP. Yeah some of this is related to not having enough energy to stand up for lengthy periods in my shed.

    This was one of the easier ones to prototype but shoe-horning everything into a box...
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    I found some slim line (skirting board) 10A GPOs...

    I found some slim line (skirting board) 10A GPOs online so decided to make the prototype into a real thing.

    The box material looks black but is made from offcuts of 5mm thick smokey grey acrylic....
  45. Lots of good suggestions here - thanks for...

    Lots of good suggestions here - thanks for offering them up folks. Meanwhile I have been using GIMP and it hasn't changed my mind, yet.
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    Strictly speaking long narrower slots should be...

    Strictly speaking long narrower slots should be under rated in terms of area but 25 mm is border line - maybe derate by 1/3rd? so say you have about 6000 mm2

    YES

    As long as they are not too...
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    If you don want to glue the outside PVC joints...

    If you don want to glue the outside PVC joints but want to keep the water out, push fit the joints and them apply a small bead of silicone will enable you to take the joints apart if you need to.
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    Zip tie the anti start in the on position and...

    Zip tie the anti start in the on position and install a remote on the power switch.
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    Too big for my shed/

    Too big for my shed/
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    The price for the resistors was something stupid...

    The price for the resistors was something stupid like US$7 - $8 each but at the time shipping was something like US$40!.
    At the time (2016) the braking resistors were a 3rd party item and are...
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