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Bristol Pilot Cutter by michael mott - 1/8 scale - POF


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7 hours ago, KeithAug said:

Soft solder I assume?

Hi Keith yes it is soft solder done with the hot air soldering gun.

 

Thanks ,John, Nils , Igor

 

I am going to see how turning up a pair of cast iron balls works today.

 

Michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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Oooh, nice! Also love the adjustable spanner (wrench) that you made lo those many years ago. 

 

Do I assume that the compass will work when completed? Otherwise you might just use brass for the balls (adolescent snigger).

Be sure to sign up for an epic Nelson/Trafalgar project if you would like to see it made into a TV series  http://trafalgar.tv

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7 hours ago, druxey said:

Do I assume that the compass will work when completed? Otherwise you might just use brass for the balls

Hi Druxey yes the compass will be fully operational.

I spent some time this morning making some soft iron balls

 

IMG_2185x1024.jpg.321d02e1a32688308cb5378d46a89d04.jpg

They turned out well but are way to small for the scale I am working in as i was doing this I realized that I did not fully understand the mechanism for the balls or how they worked.

To be clear on the function of the soft iron Balls.

I read a number of articles about binnacles and found the technical stuff surprisingly hard to find.

This one was one of the better ones and also a child's article on making a compass has led me to rework the innermost parts of my own.

 

This picture shows the parts of the compass I have made and also the tiny parts from a ridiculous pocket knife compass that showed the alignment of the pocket knife and nothing else. The pocket knife compass though has a one piece that will be able to replace the huge brass mass with the rare earth magnets. 

 

IMG_8709x1024.jpg.b8d85fe26b3e1efbc4bf96d224d19741.jpg

The cup hanging inside the gimbals  will need a bit of modification to hold the black cup and compass base.

I will make a new card to fit over the compass in the black cup, and rework the brass cup to have a needle for the new compass instead of the black plastic cup.

 

The other thing that will need to be done is a cover that will prevent the new compass from lifting off the pin, there is enough meat in the brass cup to drill and tap some holes for retaining screws on a 1/32 plexiglass cover. 

 

The soft iron balls will no doubt wind up in the spare stuff tray.

 

Looks like a bit of lathe work is in order.

 

Michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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Very nice compass! The purpose of the iron spheres is to help mitigate the effects of an iron hull on the magnetic compass. There should also be a vertical iron rod (the flinders bar) to offset that component of the magnetic field. I hate to break it to you, but since your hull is wood, I doubt that your compass would have been fitted with those extras, they would do more harm than good.

 

Andy

Quando Omni Flunkus, Moritati


Current Build:

USF Confederacy

 

 

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Hi Andy great to hear from you.

32 minutes ago, realworkingsailor said:

I hate to break it to you, but since your hull is wood, I doubt that your compass would have been fitted with those extras, they would do more harm than good.

 

Andy this is the conclusion that I came to after all my reading today. So they will not be installed and as I noted in the last post I just edited. However I think I will have a better gimballed compass at the end of the day as a result.

 

Michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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14 minutes ago, michael mott said:

However I think I will have a better gimballed compass at the end of the day as a result.

 

Michael - 

 

I was going to say that your work on the binnacle is superb.  But if you are going to end up with a better one, I will hold off for now.  I am in danger of running out of superlatives.

 

Superb, nonetheless.

 

Dan

 

 

Current build -SS Mayaguez (c.1975) scale 1/16" = 1' (1:192) by Dan Pariser

 

Prior scratch builds - Royal yacht Henrietta, USS Monitor, USS Maine, HMS Pelican, SS America, SS Rex, SS Uruguay, Viking knarr, Gokstad ship, Thames River Skiff , USS OneidaSwan 42 racing yacht  Queen Anne's Revenge (1710) SS Andrea Doria (1952), SS Michelangelo (1962) , Queen Anne's Revenge (2nd model) USS/SS Leviathan (1914),  James B Colgate (1892),  POW bone model (circa 1800) restoration

 

Prior kit builds - AL Dallas, Mamoli Bounty. Bluejacket America, North River Diligence, Airfix Sovereign of the Seas

 

"Take big bites.  Moderation is for monks."  Robert A. Heinlein

 

 

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Hi Dan thanks for the kind words.

 

This evening I reduced the depth of the inner cup and machined a new insert it is drilled through with a .6mm hole at the top and threaded 1/4 inch deep x 8/32 thread on the bottom.

 

IMG_8711x1024.jpg.7a8b291803895ba67faf1fc626984f25.jpg

 

This allows the needle to be adjusted up or down, the needle is in fact the end of the 8/32 screw machined down and honed to a point to hold the compass.

 

IMG_8713x1024.jpg.4ad5a50d239c8e8321cbf8613d0bce0d.jpg

The magnetic part placed on the pin

 

 

 

 

 

 

 

IMG_8715x1024.jpg.0f77dfe3a4088692a5b544b955f7c024.jpg

I tested the pivoting by bringing a pair of metal tweezers up to the compass and the needle swung to them

 

IMG_8716x1024.jpg.0a350cdea7745fca5da04de00916bfdb.jpg

 

Next to find the print that I made for the compass and mount it on the metal magnetic part. Also the plexiglass cover.

 

Michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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Prototypically, the bowl of the compass should be filled with mineral spirits to dampen the movement of the card. May be worth trying, you could probably get a similar effect with rubbing alcohol. No air bubbles allowed!

 

Andy

Quando Omni Flunkus, Moritati


Current Build:

USF Confederacy

 

 

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Hi Michael, how disappointed I am that I found this build too late :(  I will need to take some time to read back through.  

 

That compass is a work(ing) of art; a model in itself.

 

Very much enjoyed seeing how you did this.

 

cheers

 

Pat

If at first you do not suceed, try, and then try again!
Current build: HMCSS Victoria (Scratch)

Next build: HMAS Vampire (3D printed resin, scratch 1:350)

Built:          Battle Station (Scratch) and HM Bark Endeavour 1768 (kit 1:64)

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3 hours ago, realworkingsailor said:

Prototypically, the bowl of the compass should be filled with mineral spirits to dampen the movement of the card. May be worth trying, you could probably get a similar effect with rubbing alcohol. No air bubbles allowed!

Andy this has crossed my mind, it would entail sorting a couple of things out, not the least of which would be testing the printed card for deterioration in the oil or spirit. also I would need to seal a few spots to prevent leakage, eliminating the air is not a problem.

 

I shall consider my options on this one.....

 

Michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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good to see your back in the workshop :)    very nice work on the compass......your metal working skills are amazing.

I yam wot I yam!

finished builds:
Billings Nordkap 476 / Billings Cux 87 / Billings Mary Ann / Billings AmericA - reissue
Billings Regina - bashed into the Susan A / Andrea Gail 1:20 - semi scratch w/ Billing instructions
M&M Fun Ship - semi scratch build / Gundalow - scratch build / Jeanne D'Arc - Heller
Phylly C & Denny-Zen - the Lobsie twins - bashed & semi scratch dual build

Billing T78 Norden

 

in dry dock:
Billing's Gothenborg 1:100 / Billing's Boulogne Etaples 1:20
Billing's Half Moon 1:40 - some scratch required
Revell U.S.S. United States 1:96 - plastic/ wood modified / Academy Titanic 1:400
Trawler Syborn - semi scratch / Holiday Harbor dual build - semi scratch

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Beautiful work Michael. Your tools reminds me of my own machinist training - a long time ago. Nostalgia is setting in ;-)

 

Cheers,

Piet, The Flying Dutchman.

 

"Your greatest asset is not the quantity of your friends , rather the quality of your friends."  (old Chinese proverb)

 

Current Builds: Hr. Ms. Java 1925-1942

                       VOC Ship Surabaya

 

Planned Builds: Young America Diorama - scale 1:3000

 

Future Builds: KPM ship "MS Musi."  Zuiderzee Botter - scale 1:25. VOC Jacht in a 6" lamp,  Buginese fishing Prauw.  Hr. Ms. Java - Royal Navy Netherlands Cruiser.

 

Completed Builds:   Hr. Ms. O16 Submarine

                             Hr. Ms. O19 - Submarine Royal Navy Netherlands

                             Ship Yard Diorama with Topsail schooner -

                             Friendship Sloop Gwenfra

                           Muscongus Bay Lobster Smack    

                             Golden Hind - Cutte Sark (both not in this forum)

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Denis , Elmer , and Piet thanks for the kind remarks.

 

Did a bit more work cleaning up the compass and made the cover from some 1/32 plexiglass.

IMG_8720x1024.jpg.8b48b16fdc19b3d951d68c7cd3f36ec7.jpg

IMG_8725x1024.jpg.72d7e738fa8e155708ec1cfb0a6bcfe1.jpg

 

The bolts are some modified 00x90 1/4 in long hex bolts.

 

Capture8724.JPG.582a1ae9f2d7ef66a66cde030e4ca44a.JPG

After cutting them to length and polishing the threaded end they were held in the pin chuck to reduce the hight of the head and to round it up a bit.

 

IMG_8728x1024.jpg.338369d7289cf487c64c674ce67706e1.jpg

 

IMG_8730x1024.jpg.80c190c08af4fb7c486e2b6ef4c81e6c.jpg

 

All the gimbal rings were given a final sanding with some 1200 grit wet and dry.

 

and fitted back into the copper dome.

 

Capture8732.JPG.79e7908ca64bef3942020a521273da51.JPG

 

Michael

 

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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Hi Michael - what's the technique fro drilling acrylic sheet without cracking it?

 

Mark

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Hi Mark

To make the front edge of the drill a scraper similar to a bit for brass.

 

Michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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That is simply stunning work; what is the size (diameter) of the compass card Michael?

 

cheers

 

Pat

If at first you do not suceed, try, and then try again!
Current build: HMCSS Victoria (Scratch)

Next build: HMAS Vampire (3D printed resin, scratch 1:350)

Built:          Battle Station (Scratch) and HM Bark Endeavour 1768 (kit 1:64)

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Hi Pat, the card is 14mm or 35/64, the card rotates very nicely. I printed it up on photo paper and then coated it with CA glue. The Plexiglas  was very old I had it left over from my Architectural model building days so since 1984, the trick with removing the protective paper on old Plexiglas is to warm it up with a hot air gun. The paper then comes off as if it were a new sheet.

 

Michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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Thanks Michael, that is awfully good work at that scale.  Great trick to remember for the paper too - thanks

 

cheers

 

Pat

If at first you do not suceed, try, and then try again!
Current build: HMCSS Victoria (Scratch)

Next build: HMAS Vampire (3D printed resin, scratch 1:350)

Built:          Battle Station (Scratch) and HM Bark Endeavour 1768 (kit 1:64)

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Thanks for the kind words Carl, thanks also to all of you who have been visiting.

 

In between the hockey periods I did a little work on the companionway, and lowered the side walls by 1/2 inch 4 inches in scale which leaves them at 17 inches at the aft end and 13 1/2 inches at the forward end. I'm good with that.

IMG_2193x1024.jpg.e7df0f4fcfc89acf7df8c4744d8c5385.jpg

IMG_2192x1024.jpg.42065dc52912ed4da19e69b212dab0d0.jpg

 

 

 

I will shorten the hatch about 3 inches shorten the sidewalls length by 4 inches to make them 48 long and add a couple of round ports in them.

 

Michael

 

 

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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the hatch looks good.......and some amazing work on the compass.   very nice :) 

I yam wot I yam!

finished builds:
Billings Nordkap 476 / Billings Cux 87 / Billings Mary Ann / Billings AmericA - reissue
Billings Regina - bashed into the Susan A / Andrea Gail 1:20 - semi scratch w/ Billing instructions
M&M Fun Ship - semi scratch build / Gundalow - scratch build / Jeanne D'Arc - Heller
Phylly C & Denny-Zen - the Lobsie twins - bashed & semi scratch dual build

Billing T78 Norden

 

in dry dock:
Billing's Gothenborg 1:100 / Billing's Boulogne Etaples 1:20
Billing's Half Moon 1:40 - some scratch required
Revell U.S.S. United States 1:96 - plastic/ wood modified / Academy Titanic 1:400
Trawler Syborn - semi scratch / Holiday Harbor dual build - semi scratch

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Michael - I have had problems in the past bolting directly on to perspex. After a while I noticed small cracks starting to grow from the bolt holes. I cured it by using rubber grommets to line the holes (slightly wider than the perspex thickness). It may be that I had a bad experience and you will get away with it.

 

Excellent work as always.

Keith

 

Current Build:-

Cangarda (Steam Yacht) - Scale 1:24

 

Previous Builds:-

 

Schooner Germania (Nova) - Scale 1:36

https://modelshipworld.com/topic/19848-schooner-germania-nova-by-keithaug-scale-136-1908-2011/

Schooner Altair by KeithAug - Scale 1:32 - 1931

http://modelshipworld.com/index.php/topic/12515-schooner-altair-by-keithaug-scale-132-1931/?p=378702

J Class Endeavour by KeithAug - Amati - Scale 1:35 - 1989 after restoration.

http://modelshipworld.com/index.php/topic/10752-j-class-endeavour-by-keithaug-amati-scale-135-1989-after-restoration/?p=325029

 

Other Topics

Nautical Adventures

http://modelshipworld.com/index.php/topic/13727-nautical-adventures/?p=422846

 

 

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On 4/27/2017 at 3:59 PM, KeithAug said:

I have had problems in the past bolting directly on to perspex. After a while I noticed small cracks starting to grow from the bolt holes.

Hi Keith I have not had this problem in all the years I have worked with plex, perhaps it has something to do with the types of Plex, I prefer to use the Cell Cast type and not the extruded type.

 

First I bored out a piece of 7/8ths with a half inch drill

 

IMG_2222x1024.jpg.98a6feef788fc6f74392e7d673fa63e2.jpg

Then using a brand new tool bit which I ground from some 5/16 HSS steel, I was pleased that I was able to take a single depth of cut of .125" for a distance .312" which is the thicknes of the side walls of the cabin.

 

IMG_2223x1024.jpg.d27d460cb8020582830c978a4e5b4ce7.jpg

 

 

The first three porthole shells still a lot of work to do but it feels good to make some progress.

 

IMG_2224x1024.jpg.841c11852b8c4a75491c2a6c3264cd8d.jpg

 

Michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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  • 1 month later...

Hello Don,

I do not know of any Kits although at one time there was a hull that was either vac formed or glass fibre one that approx 46 inches long.

 

In this months Wooden Boat magazine there are some nice plans of a 29 foot daysailer along the lines of a traditional pilot Cutter.

 

Michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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Don

Re Bristol Pilot Cutter kit, this may be of interest http://www.kingstonmouldings.co.uk/products.html

Keith

 

Current Build:-

Cangarda (Steam Yacht) - Scale 1:24

 

Previous Builds:-

 

Schooner Germania (Nova) - Scale 1:36

https://modelshipworld.com/topic/19848-schooner-germania-nova-by-keithaug-scale-136-1908-2011/

Schooner Altair by KeithAug - Scale 1:32 - 1931

http://modelshipworld.com/index.php/topic/12515-schooner-altair-by-keithaug-scale-132-1931/?p=378702

J Class Endeavour by KeithAug - Amati - Scale 1:35 - 1989 after restoration.

http://modelshipworld.com/index.php/topic/10752-j-class-endeavour-by-keithaug-amati-scale-135-1989-after-restoration/?p=325029

 

Other Topics

Nautical Adventures

http://modelshipworld.com/index.php/topic/13727-nautical-adventures/?p=422846

 

 

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Thanks Keith I could not remember the name of the outfit that made the hulls.

 

michael

Current builds  Bristol Pilot Cutter 1:8;      Skipjack 19 foot Launch 1:8;       Herreshoff Buzzards Bay 14 1:8

Other projects  Pilot Cutter 1:500 ;   Maria, 1:2  Now just a memory    

Future model Gill Smith Catboat Pauline 1:8

Finished projects  A Bassett Lowke steamship Albertic 1:100  

 

Anything you can imagine is possible, when you put your mind to it.

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