Here is a list of all the postings Gareth Jones has made in our forums. Click on a thread name to jump to the thread.
|Thread: Spider J|
I get most of my miniature fasteners from two sources,
Eileens Emporium who stock a good range of fasteners and a very wide range of brass sections. Their website is here **LINK**
BA bolts has an even wider range of fasteners, see their website here **LINK**
There is no particular reason for using BA fasteners rather than metric, I have just accumulated a few 10, 12 and 14 BA screws, nuts and washers and keep using them as appropriate. Maybe one day I will standardise and go metric.
On a slightly different topic, one material we use frequently for our vintage yacht restoration projects is T section brass, ideally about 8 mm x 8 mm and 1 mm thick. It's needed for jib racks, shroud plates and deck eyes. This is really difficult to come by in the UK, there are plenty of examples much smaller and much bigger in section but nothing the right size. I was forced down the route of cutting down H section for Serica and China Boy but that is a bit of a waste. Old brass curtain track is useful as a starting point but also almost impossible to find now. As a result I tried a source in Germany last week. **LINK** They do 1 metre lengths of 8 x 8 x 1mm and lots of other sizes. The postage is a bit expensive but I ordered it on Tuesday afternoon and received it on Friday morning, despite it being the worst weather in Europe for years - excellent service.
On Spider J I have started trying to make the first prototype 6 mm diam ratchet. The basis is an 8 mm brass pulley, filed down to 6 mm in my pillar drill. I then tried to cut 8 equally spaced radial slots with a small hacksaw and then started filing the shape of the teeth. The method has some promise, but the difficult part is getting the radial saw cuts equally spaced and equally deep.
A bit more practice needed I think, or some sort of miniature jig. The hole in the middle is 1/16 inch diameter.
The first of the coaming mounted halyard winches has progressed quite well, if rather slowly. I usually make a prototype example first and then the final versions but in this case the prototype looks good enough to be the final version of the port winch. It is made from brass square section uprights (2.5 mm), rod and tube, fastened together and to the coaming with a mixture of 12 BA and 14 BA nuts and screws.
The top roller operates the foresail halyard and the lower one, which has a low and high gear arrangement operates the gaff peak halyard. The internal gear on the larger diameter section has been made from a length of toothed belt recycled from an old printer. The small pinion is taken from a small electric motor reduction gearbox. The screws all need cropping to length, although I am pondering whether for realistic accuracy, it is worth replacing them with hexagon headed bolts, rather than continuing to use cheese headed screws that I happen to have in stock.
The next parts to make are the brake, which clamps around the large diameter piece of tube and the pawl and ratchet mechanism that goes on the end of each roller. Making a 6 mm diameter ratchet from a small brass disc could be a challenge. I don't have a lathe so my usual starting point for something like the ratchet will be a small brass pulley, filed down to the right diameter in my pillar drill..
When this side is complete I have to make another identical, but handed winch for the other side. That one operates the gaff throat halyard and the topping lift (which holds up the aft end of the mainsail boom).
|Thread: Yacht type|
I think something has gone wrong when you have tried to post a photo of the yacht in question. Have another go at posting a photograph. There are some notes on how to do it in an earlier post here. **LINK**
It will help identification if you can provide a couple of photos, one side on showing the elevation of the hull clearly and one directly down on the deck showing the plan shape.
|Thread: Ellesmere Port show 2018|
Are you sure the event is going to take place? From what has been said on the other well known forum, I thought that this years show had been cancelled.
|Thread: Star SY6 Southern Star|
There is some information about Star yachts on the Vintage Model Yacht Group website. I don't know if it will help answer your questions but there is a link to it here:- **LINK**
|Thread: dead eyes|
Elizabeth used Artesania Latina part 8503 dead eyes on her model of Ariel. They are nominally 4 mm diameter which would be 240 mm diameter at full scale or about 10 inches. I have attached a couple of pictures on Cutty Sark which might help you judge the size of the real item.
If you assume from the second picture that the top of the rail is about 48 inches high and then scale the deadeyes in the first picture by measuring the diameter and the distance from deck to top of rail, it makes them around 9-10 inches diameter.
As you can see, it was pretty wet the day we went round Cutty Sark.
|Thread: Stanchion Plates|
As an alternative to drilling holes and fitting real rivets, you could simulate them with a spot of thick superglue in each corner of your base plates. Alternatively you could impress the rivet heads from the back of the base plate using a tool made up of a small block with 4 pins, similar in principle to the process I used on Spider J's hull plating shown here.
Another option would be to use photo etched rivet heads stuck in each corner. I have not done this to simulate rivets but I have used it quite a lot to simulate bolt heads and tails
|Thread: Spider J|
Solartex does give quite a good impression of a tarpaulin. All three hatches have now been covered. There is a very small overlap on either end of the centre hatch which hides the joints in the hatches very well. The material I have used is satin finish dark green.
I have done the covering in a number of sections, roughly representing sheets about 8 feet wide. Initially I folded the edge over to make a seam but, even folding 3 or 4 times it still looked too thin and lost in the overall look. Eventually I incorporated a strip of styrene, 2 mm wide and 0.3 mm thick which looks reasonably convincing, although perhaps now slightly too thick. The styrene strip was ironed on, near to the edge of the Solartex using the adhesive backing and the Solartex then folded over and ironed on the underside of the strip as well.
The panels were overlapped and ironed down in turn to fix them on the ply hatch cover. There is the odd small wrinkle and bubble but the tarpaulins were never ironed down completely flat in real life. I ran a small clock gearwheel along each seam to simulate the stitches. Its not easy to see unless you look closely but at least I know its there.
I have been trying to finish off various details that got abandoned in a partially complete state when I moved on to something new. The brass anchor chain has been blackened, as have all the brass fittings for the lee-boards and the front head ledge winch. There are still quite a few details that need painting, including the deck horses and the front winch. I have also started to shape a piece of timber to make the tiller arm. I will post some pictures when I find a way of forming it into shape, which is probably going to involve some steaming.
I think the next major sub assembly project will be the two coaming mounted winches which hoist the sails and gaff boom. This will be made in styrene and brass as it needs to be robust since it will end up taking some of the sailing/rigging loads. Here is a picture of the real thing. There are two, one on either side just aft of the mast. Having a real example to copy is a great benefit when it comes to trying to get all the details right. There are a few hatch bar wedges to compare as well.
Thanks for the reminder about your Puffer thread. There are quite a few areas where you had some good ideas I can use on Spider J as they have quite a lot of rigging in common. However I have deviated from your method of making the hatch wedges. I made up an aluminium spacer to use on my disc sander platform so I could hold the relatively narrow wooden strip against the disc at a fixed shallow angle. I have just sanded the tapered section and then cut them off to length afterwards. It means I used roughly twice as much timber as you, per wedge, but they are only small and its only an off-cut anyway. Here are a couple in place after they have been dyed.
The brass hatch bars have been blackened. I am not sure yet whether I am going to paint them. The final look I want for the sloop is a well used but not necessarily abused appearance.
|Thread: Bending Deck Planks|
The planking of Daredevil is now complete, the next job for Elizabeth is sanding it down.
|Thread: Spider J|
Tonight I have had a trial fit of the Solartex tarpaulin simulation. I plan to fit this in sections about 5 inches wide to simulate separate sheets that overlap.
The hatch bars will be made from 3 mm wide, 0.5 mm thick brass strip. I would have used styrene but I have not got any of the right size but I have the brass. I have also made the first 4 prototype wedges that hold the hatch bars in position. These have been made from some 3 mm x 2 mm timber, not sure what, possibly spruce, tapered on my disc sander to about 12 degrees and 8 mm long which looks about right.
At some point I need to make 68 of these wedges, near enough all the same size and shape. They will be dyed with Colron light oak wood dye. The hatch bars and wedges will be stuck to the sides of the hatches so they just rest in the cleats on the coamings and don't actually get wedged in properly otherwise removal and refitting the hatches would be difficult and I don't fancy having to remove 68 wedges every time I take the hatches off.
I have tried fitting a second piece of Solartex to overlap the first but it is so thin, the seam is almost invisible. I am going to have to fold over the edge of each piece before fitting to make the seams more realistic.
I made a decision on the hatches and have shortened the front one so that it finishes flush with the fairlead where the sheet for the foresail emerges just in front of the mast. The reason for this is that there is a fixed deck horse across the hatch at this point and, if I had left the front hatch as it was, it would be very difficult, if not impossible to fit behind the front winch and under the deck horse.
I have now made the rear hatch in two sections. The aft one will normally be semi permanently fitted and the centre section gives access to the carrying handle and will have to be fitted after the boat is in the water.
The next step should have been to fit the magnets to hold the hatches down but since they are still in the post I made the foresail deck horse as shown below. It is made from 1/8 inch brass rod and is attached by two short strips of brass through each side of the hatch coamings. The deckhorse slides in through a hole in each strip, which is free to float sideways at present to allow everything to line up. The brass strips will be secured in their final position with some epoxy resin on the inside of the coamings.
As another fill in job I have made the main sail horse from 3 mm styrene rod and 4 mm square tube. The slider is a bit of brass tube and strip. Now that I know it fits, it needs final sanding and gluing before painting, This will not actually be used when sailing the model so it does not need to be particularly strong.
The magnets have now arrived so have been attached to the inside of the coaming using 6 mm thick ply drilled out to take the 6 mm diam, 3 mm thick magnets.
The steel targets for the magnets are attached to the underside of the hatches on a tapered packing piece. I originally planned to use some small steel washers as targets until I discovered stainless steel is not magnetic. I happened to have a tin full of bits of watch components and managed to find some suitably sized gear wheels, about 10 mm diameter which make a good substitute.
The next job on the hatches, now that they are tied down in their correct positions, was to fair in the joints so that there are minimal steps and gaps between each one.
|Thread: Receiver compatibility|
I think an AR400 should be OK. Spektrum did produce a chart which had a compatibility cross reference between all their receivers and transmitters but unfortunately it does not have a DX4E in the list, I guess because it is relatively new. However the AR400 is DSMX compatible so it should be OK.
|Thread: Bending Deck Planks|
Just to add to my earlier post here is a photo showing how we used a couple of clamps at the centre hatch (and another at the mast aperture) to create an edge against which we could hold the outermost mahogany plank.
Whether this would be possible on your model remains to be seen.
Planking has progressed on Daredevil and Elizabeth has 5 planks on each side now, plus the edge one. Having seen the earlier post by Tim Rowe, Elizabeth decided discretion was the better part of valour and decided not to joggle all the curved planks into the centre king plank. The king plank has therefore been glued in place and it is now easier to bend the planks into position using wedges rather than clamps as shown below.
I don't think we would attempt planking a deck this way with anything wider than 8 mm or it would be too stiff, or anything thinner than 2 mm or there would be no edge to pull or push the plank sideways with.
Edited By Gareth Jones on 26/01/2018 18:12:15
|Thread: Receiver compatibility|
According to the Spektrum data sheet the DX4E is NOT compatible with AR6000 or BR6000 receivers so I suggest you do not follow Paul's advice above. I think you should be OK with a DSMX compatible receiver. It may be OK with a DSM2 receiver but I would not bet on that. I have only ever used Spektrum receivers with Spektrum transmitters so I have no experience of Orange or other alternatives.
Here is a link **LINK** which should give you an idea and might help get you started. Coincidentally it was also built from a James Pottinger plan.
Have you tried contacting the Hull Model Boat Group? They meet at the boating lake in East Park, usually on a Sunday morning I think. There are some photos of an excellent looking model of the St Finbarr on their website. There is a link here **LINK**
The model on the website is described as scratch built so there may not be a suitable hull available but it might be worth contacting the builder via the website or one of their meetings.
Edited By Gareth Jones on 24/01/2018 16:00:19
|Thread: Prop RPMs|
The article referred to by Colin above, and also by Ashley, was based on a survey of members boat performance information submitted to the website. There is a link to all that data here, including several of my own models. **LINK**
I have kept an Excel spreadsheet of the performance of all my models, some with several different motors and propellers fitted. If you would like a copy send me a PM with your email address and I will forward a copy to you.
|Thread: Bending Deck Planks|
Coincidentally we are attempting something similar to your decking request this very afternoon. Elizabeth is restoring a Marblehead yacht with a rather scruffy deck and decided she wanted to have a go at curved deck planks notched into a kingplank. She has done straight deck planks in the past and we have jointly done inked curved planks on a couple of painted decks.
We started with a mahogany edge plank 5 mm wide and 2 mm thick. This was stuck on with superglue. We were able to fit a few clamps across the deck from the mast hole and centre hatch which gave us an edge to work to. Using 2 pairs of hands we were able to get the edge plank glued down flush with the edge of the deck.
The main deck planks are 8 mm x 2 mm lime. We have managed to get the first one on each side at the front of the hull using battens held down on the deck with large rubber bands to stop the planks lifting and twisting. The lime planks have been lightly clamped up against the mahogany edge using some clamps as shown below. We are using aliphatic resin to glue the lime down.
For subsequent planks we are attempting to pre-bend them by clamping them up overnight on the bench using some magnetic blocks and a piece of steel sheet we bought at the Blackpool show. How effective in creating a permanent bend this will be remains to be seen but the magnetic blocks work well on what is their first outing in the workshop. I will let you know more as it progresses.
The kingplank is 15 mm mahogany and has been temporarily stuck down with small sections of double sided tape. We hope to do the notching by adapting Banjoman's method as used on his Moonbeam, where he had straight planks notched into the curved edge plank. I suspect that will be a real b****r of a job to do neatly without breaking or splitting the planks but time will tell.
Hi Mattias and Rudy,
Just for your information on a couple of aspects of my wife's Moonbeam. We secured the hatches, or at least provided a safety backup, using an elastic band through an eye screwed into the hatch and another in the hull. The photo below shows the idea. We found the centre hatch to be the most vulnerable one, as the sail sheets can snag on the ventilators and pull the hatch out of the hull. If you are unlucky, it falls overboard and sinks due to the weight of the white metal fittings. In Elizabeth's case she was lucky and the hatch fell down inside the hull.
We have recently done a further mod to the rigging to address the problem of there being no effective backstay to prevent the mast leaning forward. It tends to lean in that direction because of the foresail luff lines pulling it from high up on the mast which gives them a long lever arm, even though the loads are not high. We have made the two main shrouds completely separate items rather than just being a single run up and over the lug on the mast and then back down again. Each of these separate shrouds has a bowsie at its top end to allow them to be tensioned independently. This allows the rear shrouds to be pulled much tighter than the front ones, providing a reasonably effective backstay. Adding the bowsies may detract from the appearance slightly but its a minor point (in our view) and is outweighed by a stiffer upright mast which looks better. The bowsies are easier to adjust than fiddling with the deadeyes (which we have retained) at the bottom of each shroud.
Want the latest issue of Model Boats? Use our magazine locator link to find your nearest stockist!
Make sure you never miss out on the latest news, product reviews and competitions with our free RSS feed
We welcome well written contributions from Website members on almost any aspect of Model Boating with a particular emphasis on practical hints, tips, experience and builds.
In order to maintain a consistent standard and format, all suggestions should first be sent to me by Personal Message for approval in principle. Only a very limited amount of time is available for editing contributions into a suitable format for placing on the website so it is important that the material is well presented, lucid and free from obvious spelling errors. I think it goes without saying that contributions should be illustrated by appropriate photos. I shall be happy to give advice on this.
The Member Contribution area offers space for short informative mini articles which would not normally find a place in Model Boats magazine. It is an opportunity for Website Members to freely share their expertise and experience but I am afraid that virtue is its own reward as there is no budget to offer more material recompense!
I look forward to receiving your suggestions.
Colin Bishop - Website Editor