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    gerritv
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    Member No.#5043
    Registered๐Ÿ“…23rd Jun 2018
    Last Online๐Ÿ“…22nd Jul 2019
    City๐Ÿ“St. Catharines
    Country๐Ÿ‡จ๐Ÿ‡ฆCanada
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    ๐Ÿ‡จ๐Ÿ‡ฆ Ron ( Sub-Lieutenant)
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    Restoring a 1:72 HMCS Athabaskan (G07)
    Recent Posts
    ๐Ÿ“ Are these any good
    10 months ago by gerritv ( Able Seaman)
    Flag
    One thing to perhaps change is to run the small drills slower. I know the usual wisdom says to run at high RPM but without a high feed in rate to with it, the drills will just rub and heat up. Slower RPM allows hand feeding without that overheating risk. Feed pressure of course needs to stay within the limits of the drill size, a 1mm drill can only take so much axial load.
    A side benefit in stainless is less risk of work hardening.

    drill
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    ๐Ÿ“ Are these any good
    10 months ago by gerritv ( Able Seaman)
    Flag
    You are getting HSS drill bits (the ones from Microscrews are HSS) or you are going to try drilling HSS? HSS is generally rock hard and them tempered.
    I will verify that the drills I bought from Microscrews work on Allen screws, I think I have already done that but will check.

    If the screws are stainless, then it is likely that the screws work harden while drilling making the task challenging. Stainless can be a major pita to work.

    drill
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    ๐Ÿ“ Are these any good
    10 months ago by gerritv ( Able Seaman)
    Flag
    Perhaps it is what you are trying to drill and thus using the wrong drill technology? if I can drill silver steel/drill rod and stainless all day long with them then it is not the drills. (My main hobby is machining)

    drill
    hobby
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    ๐Ÿ“ Are these any good
    10 months ago by gerritv ( Able Seaman)
    Flag
    Are the drills not sharp? Drilling oversized/undersized? I love mine, in steel (esp drill rod/silver steel), al and brass (although most drills unmodified are a bit grabby in brass).

    drill
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    ๐Ÿ“ Are these any good
    10 months ago by gerritv ( Able Seaman)
    Flag
    Maybe but someone else had 8 years after her along with the union to get to today's place. Esp. in recent years the union demand history reminds me of Billy Connolly's Demands Keep Changing skit.

    To the original poster, sorry for the diversion. I hope you are not disappointed in the drills!

    drill
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    ๐Ÿ“ Are these any good
    11 months ago by gerritv ( Able Seaman)
    Flag
    At least you have postal service, the clowns over here arranged for delivery backups of international parcels well into next year. Can't even order from most places outside Canada as they won't accept post from overseas for at least another month.

    When I do get to order from EU/UK, I save the VAT but pay it on shipping :-)

    ship
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    ๐Ÿ“ Are these any good
    11 months ago by gerritv ( Able Seaman)
    Flag
    Those would not be HSS (which is rock hard in layman's terms). Any good quality drill bit will go through those. The ones from microscrews will work nicely.

    drill
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    ๐Ÿ“ Are these any good
    11 months ago by gerritv ( Able Seaman)
    Flag
    I buy my small drill bits from https://www.microscrews-shop.nl/ Excellent quality. I use them in steel and stainless as well as aluminium. For brass I dull them slightly and keep in separate box.
    Are you drilling tool steel (aka silver steel) or High Speed Steel? Tool steel is no problem for the drills I buy above.

    His hardware is also of excellent quality.

    (I don't pay the VAT because in Canada, which offsets the shipping cost.)
    https://www.microscrews-shop.nl/
    ๐Ÿ”—

    high speed
    drill
    ship
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    ๐Ÿ“ Equipment wire
    12 months ago by gerritv ( Able Seaman)
    Flag
    Just to provide some more specifics on overall diameter, I have WW wire that is 30ga but the insulation adds variable amounts to that. E.g. one is 0.43mm dia, another is 0.75mm diameter.
    The solder-able wire that I use is 0.15mm diameter. That is available here: http://www.roadrunnerelectronics.com/epages/BT3782.sf/en_GB/...

    I still occasionally wire prototypes up using the Vector P173 wiring pencil :-)
    http://www.roadrunnerelectronics.com/epages/BT3782.sf/en_GB/?ObjectPath=/Shops/BT3782/Categories/Wire
    ๐Ÿ”—

    wiring
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    ๐Ÿ“ Equipment wire
    12 months ago by gerritv ( Able Seaman)
    Flag
    The inards of USB cables is very small, and stranded. Often available for few $ at thrift shops.
    I find WW wire (30ga) plenty robust for most things, used it a LOT in the 70's for backboards on mainframes. Solders very well. if the runs are long-ish then add a clip every few inches for support.

    If you need really really thin then magnet wire would be your next option. There is solder-able stuff available where the insulation dissolves under high temperature. insulation is otherwise quite robust.
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    ๐Ÿ“ Plimsoll Line
    1 year ago by gerritv ( Able Seaman)
    Flag
    By printing those photos on A4 you can use dividers and a calculator to determine the ratio between the photo scale and your model. You can then use that info to transfer the line location to your model.

    model
    scale model
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    ๐Ÿ“ Plimsoll Line
    1 year ago by gerritv ( Able Seaman)
    Flag
    If you have access to the drawings, then measure in several places, level on the bench according to your marks and then run a pencil mark around the hull. Then you have a continuous line to align the tape with.
    Depending on the hull build, you might have to measure down from the deck (My dad added .75" to the depth of hull to gain displacement for batteries etc.) This led me to measure from the deck line.
    Once model is in the water, shift ballast around until it is level with the line.
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