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Type: Posts; User: BobL

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  1. Replies
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    Just a head up that those tests would have all...

    Just a head up that those tests would have all been done at 60Hz.
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    One effect effect of using a small impeller on a...

    One effect effect of using a small impeller on a Cyclone designed for a larger impeller is that the back pressure generated by the cyclone will reduce the overall airflow. That's teh main reason BP...
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    I had my jab a couple of weeks ago but today...

    I had my jab a couple of weeks ago but today SWMBO decided to get hers and wantsed me to drive her in case she has a problem. OK no worries.

    She wants to go the clinic at the show ground which is...
  4. Just cut the groove in my cylinder. It was more...

    Just cut the groove in my cylinder. It was more like 225 mm long. Hot glued a block at each send and put it through the router easy peasy.
  5. I'd use the hot glue method. Interestingly I...

    I'd use the hot glue method.

    Interestingly I have to some something similar, but fortunately my "dowel" is about 45mm in diameter and only 175mm long and the trench is 8mm wide by about 10 deep so...
  6. Thread: Losing Mobility

    by BobL
    Replies
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    805

    It's really hard to work out what is going on...

    It's really hard to work out what is going on with shark cartilage.
    The National Institutes of Health data base has hundred so f references to studies of Shark cartilage with mixed results.

    In a...
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    That's really your problem - the DC and suction...

    That's really your problem - the DC and suction tubes are too small hence they will never capture all fine dust where/while it is being made. Trying to then capture the escaped fine dust with a room...
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    I think that one has a an 18" impeller - which is...

    I think that one has a an 18" impeller - which is consistent with the 10HP needed to drive it.
    Its very similar to several I have seen at men's sheds.

    It's not only oversize for your shed but...
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    The motor is a 380V 4kW 3P and draws 8.2A at...

    The motor is a 380V 4kW 3P and draws 8.2A at 50Hz.
    This makes it possible that it is a 14" impeller
    A smaller impeller at 50Hz would cause the motor to draw about 6A.
    But it could just be an...
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    Nice mod. Good location too If you haven't...

    Nice mod. Good location too

    If you haven't seen my motorcycle throttle version here's a pic.
    Kill switch works too.
    494432


    RE: Bolting bar to mill.

    Iv'e used M8 tensile on my small mill...
  11. Thread: Losing Mobility

    by BobL
    Replies
    36
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    805

    I have no doubt it works for many people but for...

    I have no doubt it works for many people but for me after about 20s my mind drifts onto
    - why my current projects aren't working out
    - how current projects can be improved
    - future projects
    -...
  12. Thread: Losing Mobility

    by BobL
    Replies
    36
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    805

    Good the hear you are onto it - hope it works...

    Good the hear you are onto it - hope it works out.



    I went to see my GP about foot pain (mainly in my right foot) and being a diabetic he sent me to a neurologist who checked my lower leg and...
  13. Thread: A few free logs

    by BobL
    Replies
    7
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    180

    In my neck of the woods, spotty bark falls off...

    In my neck of the woods, spotty bark falls off anywhere between 5 and about 9 months and tis indeed a good time to mill. Longer than this and the stuff starts to case harden and can really hits saw...
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    Grapples are really useful gizmos but fortunately...

    Grapples are really useful gizmos but fortunately these types of logs roll easier than others so another approach is to use a set of cant hooks and roll the log end onto a chain.

    I made this pair...
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    Looking forward to the pics. Thanks

    Looking forward to the pics.
    Thanks
  16. Replies
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    156

    Before you spend $$ or Euros, tell us about your...

    Before you spend $$ or Euros, tell us about your dust extractor system.

    eg Motor HP and impeller size, longest lengths., and diameter of ducting .

    Also what are the sizes and types of...
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    [QUOTE=Tonyz;2239373]BobL where does one get...

    [QUOTE=Tonyz;2239373]BobL where does one get these Armadillo face shield. from please[/QUOTE
    Blackwoods

    You need to register to see prices but here's a screen shot
    494394
  18. Replies
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    For quality and value I reckon its hard to beat...

    For quality and value I reckon its hard to beat the Armadillo face shield.
    Yes they only cost about $40 but it is a serious shield and I have been using them for more than 10 years.
    I wear mine l...
  19. Thread: Drum Carder

    by BobL
    Replies
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    248

    The belt finally arrived and I finished the...

    The belt finally arrived and I finished the tensioning mechanism.

    494354

    494355

    Just after taking the photos I realized the teeth on the big drum are he wrong way around but that's an easy...
  20. Replies
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    Does the saw uses a contactor? (A separate grey...

    Does the saw uses a contactor? (A separate grey or white box in between the switch and the motor) if so the locking solenoid section of the contractor is damaged or broken
  21. Replies
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    That's why I asked about the size of his shed...

    That's why I asked about the size of his shed which turns out to be only about 50m^2 in area.
    Unfortunately BIG machinery requires a lot of room and once they're shoe horned into a small footprint...
  22. Thread: Getting older

    by BobL
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    6
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    174

    I did search for isobrufen but got nothing. I...

    I did search for isobrufen but got nothing.
    I did get one hit for Isoprofen?
    Did you mean Ibuprofen?
    My cocktail was Advil and Panamax.

    AM
    chambezio, I'm the same age as yourself but...
  23. Thread: Getting older

    by BobL
    Replies
    6
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    174

    Getting older

    For the last 4 days I have been gutting the inside of our 27 year old main bathroom readying it for a complete makeover.

    The chap who's doing the reno provided an itemised quote and said we could...
  24. This happened to a mens shed drill press motor...

    This happened to a mens shed drill press motor when wasps made a nest in it.
    It fair cooked the motor.
    494330 494331
  25. Replies
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    To anyone complaining about the price of pine I...

    To anyone complaining about the price of pine I say - try buying a mill and finding a place to located it, getting hold of a decent logs, sawing them up, put the lumber through a kiln OR renting a...
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    20inches at 250 RPM = 1300 FPM - not too shabby...

    20inches at 250 RPM = 1300 FPM - not too shabby for a hand cranked thing.

    Maintaining the power and a moderate cutting speed in wood thicker than about 6mm is another matter but otherwise it would...
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    I agree, given the info provided by the OP, a...

    I agree, given the info provided by the OP, a single stage 3HP with a 13" impeller could be made to work.
    I've had a similar shed/machine setup to the OPs specs for 9 years and been running particle...
  28. Replies
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    Here's a US supplier that sells it by the ft...

    Here's a US supplier that sells it by the ft (US11/ft)
    3/4 - 6 Right Hand Acme Lead Screws & Nuts for Power Transmission - Roton Products, Inc.

    Dont know about shipping though
  29. Replies
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    An efficient cyclone uses a stream of air/dust...

    An efficient cyclone uses a stream of air/dust entering at a specific angle into the inside of an accurate determined cone. The cone sets up a spiral action that efficiently separates the air from...
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    I agree that 3600 rpm is a relatively low speed...

    I agree that 3600 rpm is a relatively low speed but the diameters are large and the rotating mass is significant.
    The 3 CV impellers I have looked at closely all have evidence of balancing ie holes...
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    The Video mentions this in passing. 96V DC is...

    The Video mentions this in passing. 96V DC is potentially dangerous stuff and suggests the LED are linked in series so if one LED dies they all die. The fellow in the video suggests replacing these...
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    That's the easy part - the hard/expensive part is...

    That's the easy part - the hard/expensive part is getting it dynamically balanced - especially of you expect it to run at 3600 rpm. I know someone who made their own and balanced it at slow speed but...
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    Still drooling over the machine. Is it just me or...

    Still drooling over the machine. Is it just me or the photo or do the wheels look like different sizes?
  34. Replies
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    What a great find! It sounds like it would be...

    What a great find!

    It sounds like it would be heresy but a few years ago I saw an old Bandsaw similar to yours that had curved minimalist guards made out of TIGed stainless steel sheet and it...
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    The thing that makes large screen TV/monitors...

    The thing that makes large screen TV/monitors useful is the Fresnel (pronounced Fre-nel) lens or sheet - which as the video shows redirects more light in the forward direction and will provide more...
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    Is difficult for anyone to provide detailed...

    Is difficult for anyone to provide detailed appropriate advice without knowing the following.

    How big (area and height) is your factory space.
    What natural ventilation is available - ie window...
  37. Thread: Happy meals.

    by BobL
    Replies
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    327

    I wouldn't be too quick to sneer or laugh at...

    I wouldn't be too quick to sneer or laugh at fractions, it's not old fashioned or quaint but a real mathematical thing.
    Many formulas in Physics and maths use fractions.
    For example; the volume of...
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    We also have an Enphase system. With...

    We also have an Enphase system.

    With conventional PV systems up to 600V DC is running across a roof to the inverter, compared to the the 240V AC coming out of micro inverters. 240V AC which is...
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    I've loaned my 100 mm Makita sander to folks and...

    I've loaned my 100 mm Makita sander to folks and in return I ask them to repay me in belts so I have quite a few belts sitting around often for years at a time before use. For my 915 x 50 and 1220 x...
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    The quickest way is probably to sand it flat and...

    The quickest way is probably to sand it flat and cut new carvings into the surface.
  41. Thread: Happy meals.

    by BobL
    Replies
    8
    Views
    327

    A new fish and chip shop opened up bear us about...

    A new fish and chip shop opened up bear us about a month ago and we decide to give it a go so I ordered two serves of Barra and chips.
    The food was delicious but each serve was enormous, 2 huge...
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    I tried a few things and had limited success with...

    I tried a few things and had limited success with a 3M? double sided pressure sensitive carpet tape. The belt segments being stuck have to be clean and have to be clamped HARD for some time before...
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    You can look at the Townsville air quality PM2.5...

    You can look at the Townsville air quality PM2.5 in real time at
    North Ward, Australia Air Pollution: Real-time Air Quality Index

    I would be interested to know when you measure something...
  44. Air purifiers are useful for A) cleaning up a...

    Air purifiers are useful for
    A) cleaning up a space in which dust is not being continually made, for say the purposes of applying a dust free finish.
    OR
    B) You already have a serious DC that is...
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    Given how bad it seems Iím very surprised...

    Given how bad it seems Iím very surprised concerned citizens havenít employed independent consultants to assess the situation.
  46. Unfortunately that wonít work because the...

    Unfortunately that wonít work because the bathroom fan will act like a bottle neck. If it only moves 300 cfm and even if the DC is capable of moving 1200 cfm then the DC will still only move 300.
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    Most air appliance manufacturers understate air...

    Most air appliance manufacturers understate air requirements and compressor manufacturers do the opposite. My limited exposure to HVLP guns has been underwhelming and found it easier and better using...
  48. :2tsup: Most bathroom fans move between...

    :2tsup:



    Most bathroom fans move between 200 and 400 CFM which is not going to be enough.
    You'd be better off putting the DC in an enclosure and venting the enclosure through that hole in the...
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    Although all dust has risks, it's likely that...

    Although all dust has risks, it's likely that wood dust is more problematic so having less dust inside a workshop than ambient out door air may be misleading.

    In a 2019 report on air quality of...
  50. Ideally the bigger the better for the vent cross...

    Ideally the bigger the better for the vent cross section.
    However if you vent directly outside through a large vent then considerable noise may escape as well.
    To counteract that some sort of "S"...
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