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Boccherini

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Posts posted by Boccherini

  1. Paddy,

    all mine were turned on a lathe, whilst they are not exactley identical, you have to look closely to spot the differences. I did one first to work out an order to the process, then did four together. The idea is to do the same step on all four barrels, then move to the next step. This will help keep them similar, and is much faster than doing one barrel to completion at a time. Good to have you on board, look forward to seeing your progress.

     

    Regards,

    Grant.

  2. Harvey,

    thanks. The barrels were turned on my lathe.

    Fixing the trucks proved to be quick and painless, if only all stuff ups were this easy to repair. The trucks and keys were not glued in place, removing them was easy. I ended up using a dab of supa glue to tack the trucks to a drill shank in a collet on the lathe, then skimmed them down to size. The smooth surface of the drill shank prevented a permanent bond to the trucks.

     

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    Grant.

  3. Pete, 42 Rocker, Ron,

    thanks for the comments. Pete, the barrels were turned on a lathe. Ron, you'll do fine, just take your time. Rushing leads to errors and poor workmanship......see below  :(

    Mark & Russ,

    thanks for the comments, particularly picking up my error. As previously stated....haste makes waste. I had not noticed the different sizes of the trucks, mine are all the same :o.  The remedy will possibly be relatively painless, I should be able to remove the offending trucks and replace them. Thanks again for picking that up. What's another week or so.

     

    Regards,

    Grant.

  4. Bob,

    Pete has it right, there were only other build logs as references. Several were very good, but that is all past history.  I see Joss (Matrim) has reposted his build log along with a couple of others. The Fully Framed Model books by David Antscherl are very helpful if you are looking for guidance on construction methods and extra detail.

     

    Regrads,

    Grant.

  5. Bob,

    deck beam jig pictures (design from The Fully Framed Model by David Antscherl).

    Basic construction, this is a realy rough looking jig (built out of scrap lying around the workshop), but it works well. The height extension on the head of the jig is not neccessary, I put it on to sand the curve into my beam arms.

     

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    Sand the curve into the underside of the beam as normal, then adjust the depth of the jig and feed the beam in from the left, against the drum rotation. You need to try and keep the curve of the beam at a right angle to the head of the jig whilst feeding it through, my apologies, this is badly described, but I think you will get it. Repeat, gradually screwing the jig toward the drum until you get to the required thickness. I was doing 2 passes through jig between adjustments. Do be aware that you are using a drill press for a job it is not really designed for (horizontal force), it's best not to sand too much at each pass.

     

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    I hope I haven't offended you by highjacking your log. If you have any queries regarding this, please just ask.

     

    Regards,

    Grant.

  6. Pete, Ron & Joss, thanks for the comments. It's a public holiday here today, so, apart from a reasonably brief foray for coffee and browsing the discount racks at a dress shop with the Admiral, all day has been in the workshop.

    Blackening the ringbolts and cannon barrels. Everything I know about this came from a tutorial by Pat (Banyan) in MSW 1.0. I'm using this product diluted at the ratio of 3 parts solution to 7 parts demineralised water.

     

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    The ringbolts were left in a citrus (white vinegar works also, I believe), pickling solution for about an hour, then scrubbed with a toothbrush in an acetone bath. For the black to properly work, the metal needs to be completely cleaned of all dirt, grease etc.

     

    post-666-0-80178900-1362394957.jpg

     

    They were dunked in the dilute solution for about 1 minute, rinsed off and allowed to dry. The strainer/cradle idea courtesy of Bosco (Ship ModellingFor Dummies, I think)

     

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    The cannon barrels were treated to the same scrubbing in acetone, supported by a sling they were dunked in the dilute solution for 1.5 minutes. You need to make sure the solution gets inside the barrel by poking a thin wire in whilst it's submerged. Rinse thoroughly and  drip dry. A syringe is needed to inject water to clean out the solution from inside the barrel. In spite of the scrubbing, 2 of the barrels were duds and had to be redone.

     

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    The barrel on the right has been rubbed with a soft cloth to finish, this removes excess chemical residue.

     

    Regards,

    Grant.

     

     

  7. Thanks Snowmans. Progress has been a little slow, all the gun carriages are complete, just need to blacken the barrels to finish.

     

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    Due to numeracy issues, I have too few ring bolts. So here is a 'how to' for any that are interested.

    The copper wire (stripped from electrical cabling) is approximately 0.5mm diameter and has been annealed to soften it, the rings are formed around the shank of a 1.8mm bit.

     

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    The spiral is then cut using a jewllers saw.

     

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    The rings removed, separated and sqeezed together.

     

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    A small amount of silver solder paste is placed on the joint, then heated until the solder melts. I'm using a cheap pencil torch. Followed by a quick touch up with a file.

     

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    Bent wire can be straightened by rolling under a timber strip. The wire end needs to be flat to give a good contact with the opposing surface, (solder paste is not good at filling gaps).The eye of the bolt is formed around the shank of a 1.0mm bit, then opened up and the ring attached, then squeezed shut.

     

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    A dob of solder is applied as before, the ring is gripped with pliers (this also provides a heat sink to protect the existing joint), making sure the eye of the bolt is level or tipped slightly backwards, otherwise solder will run with gravity around to the ring fusing the pieces :angry:.

     

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    Grip the assembly in pliers and straighten, then cut it off.

     

    post-666-0-66780600-1362359481.jpgpost-666-0-11970600-1362359504.jpg

     

    This is not a difficult task, just fiddly. The tools and materials are cheap, you have no excuse. :)

     

    Regards,

    Grant.

     

     

     

     

     

     

     

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