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>> Home > Tags > drill

Rudder location, blocking, fabrication by Joe727 Fleet Admiral!   Posted: 12 days ago
Looking at the proper rudder location, I added some 1/4 triangular hardwood blocking to both sides of the centerboard. Needed blocking to drill through. Was able to pickup the work board and all fit under my drill press to keep the hole plumb. Rudder post will be a 1/4 brass rod with brass tube as a bushing. See photo, brass tube in hull. Next, I built a rudder substructure assembly which will be covered later with a wood or styrene full size rudder to fit the era. Took some very thin brass and formed it around the post, some brass plate and soldered as seen in photos. Brass heats up and solders well using my soldering station.

vice suitable for Dremel Workstation by ronaldo Apprentice   Posted: 14 days ago
Hi, I have the same drill stand, I used a proxxon drill stand vice with a mod to suit the base to slide up down and side to side. Ronaldo,

vice suitable for Dremel Workstation by octman Fleet Admiral!   Posted: 16 days ago
Good morning folks, I have a Dremel Workstation, or drill stand as I call it, and would like to get a small machine vice (is that the correct name?) to go with it. I have seen a few smallish ones but they are usually too big to bolt to the base. Can anyone out there offer any workable suggestions please? Also, is the material the vice is made from of make any relevance at this small size, i.e. is cast aluminium any good? ( I had a screw-on table top vice made of cast aluminium which snapped in half the first time I used it.) I feel the need for this vice as I am about to drill a 1mm hole in a model yacht's mast to locate the boom vang and with my shaky hands it could end up being big enough to pass the boom through without some sort of support!! Chris

Keel by Joe727 Fleet Admiral!   Posted: 18 days ago
Printed out the frames /ribs drawings and outlined each in orange so I could easily see the correct lines. Cut those out and pasted to some plywood. The plywood is Baltic Birch 1/4" -5 ply, very nice quality that I get from a local woodworking supply store. It's a bit nicer than from the local warehouse hardware lumber yard, but that would work also. Used some spray rubber cement, sprayed only the paper back and stuck on the plywood. Spraying just one surface allows quick removal of the paper once cut. I don't have a bandsaw of scroll saw, so I use a sabresaw/hand jigsaw mounted upside down on a surface that secures to my drill press. Works pretty good. My shop is so tiny that I just don't have a space for larger tools. Maybe someday. Keel board was glued up, will show more tomorrow on that. Joe

Rubbing fenders, more epoxy & hatch coamings. by robbob Fleet Admiral!   Posted: 25 days ago
With all of the deck planking fitted I can now fix the rubbing fenders to the hull where the deck meets the hull sides. These are made from 6.5mm x 5mm obeche strip steamed and bent to shape and fixed with 30 minute epoxy, unfortunately the strips are not quite long enough to do this in one piece even with the rear rubbing fender in place at the stern so a join has to be made which I hope won’t be too conspicuous. The fender tapers in height from bow to stern and the piece that runs across the stern was made from 5mm x 5mm obeche. All the fenders were ‘pilot drilled’ for the pins that held them in place while the glue set. The complete hull was then given a further two coats of epoxy resin with a rub down between coats and a final ‘polish’ with 240 grit paper used wet. The resulting finish is perfectly smooth and ready for paint. The front and rear hatches were fitted with the coamings that will hold the hatches in place. The rotary disk sander that I bought from Lidl is certainly proving to be very useful in shaping small parts at this stage of the construction. I note that it’s back on sale now (Feb 2019) so if you have the opportunity and £30 ….go buy yourself one! The next stage will be to assemble the cabin.

Cabin detail part 6 panel light by mturpin013 Fleet Admiral!   Posted: 26 days ago
Cabin detail part 6 panel light The panel light presented a difficult challenge in that I assume the real one has a tubular light fitting in it, difficult in 1/12 scale. However, creating the tube assembly was not difficult using some annealed 1/8” brass tube and making a bending jig, (simply a 1/8 grove milled using a ball ended slot drill into a piece of hardwood I formed the tube into the required shape. I used the back of the jig to hold the piece while I filled the tube half way through along it top inside edge @ 45 degrees this is where the LED tube will fit. The LED tube is from one of the new type LED garden light bulb that use a small solar panel to illuminate it during the during dark hours. Smashing the bulb leaves 4 filaments which can be used independently, these are very delicate and need the wires attaching very carefully finally feeding it into the brass tube and then after all this fiddling, if it still lights, epoxy it in place. The next job is to make some brackets to fix it to the instrument panel. The bracket was made from 1/8” bore tube and some 0.010” brass shim I drilled some holes in the sheet prior to cutting to size, this was done using only a 1/8” dia centre drill and then enlarged with a clock makers reamer until the tube fitted snugly through this was then soft soldered in place. The whole unit was then epoxied in place on the instrument panel. All the wiring for the panel LEDs can now be completed ready for connection to the random flashing circuit board. (this came as a kit for just £3:90) The circuit board is fastened to the panel with a sub-board made from a scrap piece of ply with PCB supporting pillars in the corners, when this is completed I will post a video of it working. The LEDs on the circuit board are only for testing and will be replaced with the panel LEDs.

Tin Work by Joe727 Fleet Admiral!   Posted: 28 days ago
The tin can that I used is from a small tomato paste sauce from the market. Use whatever tin that you would like or can find. Look at my sketch to see how it needs to function and adjust your design to what enclosure is available to you. Lots of ways to do it, just make sure you have these points covered: 1. Method of attaching a fan to push air into the unit. 2. Place for output stack / tube. 3. Method of mounting a wick with heating element attached that can sit above the fluid level. See sketch in previous post. First photo, I cut three holes, each sized to fit the brass tubes and fan opening. This tin is thin and easy to poke holes in. I start by marking the opening locations with a marker, them I use a small sharp awl or pin to stare a hole. With hand tools ( power drill will easy shred the can, be careful) I enlarge the holes with small hand drills or reamer, found files, etc, I rotate the tools slowly in the opening and gradually enlarge it to size needed. Then I cut brass tubing to length with a small hand held hobby razor saw. Our in place, apply flux and solder. Once heated properly the solder flows easily.for the larger fan opening, I then used a dremel tool with sanding drum to make a nice round opening. The fan has corner openings for screw mount. Secure with some tiny sheet metal screws. Next I will build an enclosure around the fabpn edge to fit the round can. Might just use silicone caulk. Note, I did not open the can with a can opener, left the ends in place and poured the content out thru the holes made, Yes, it's a bit messy and wasted the sauce, but it's a cheap way to get an tin enclosure. More to come. Please give me feedback, am I being clear enough? Thanks, Cheers, Joe

Rubber stopper wick & element by Joe727 Fleet Admiral!   Posted: 30 days ago
In the previous post in the video, note that a black rubber stopper is inserted into a brass tube soldered to the tin container. Starting with the element again, select proper length of heater wire by applying voltage to lengths as show previous. Crimped wire to one end. Next photo shows a rubber stopper, I use my drill press to drill to straight holes to allow the voltage supply wire to pass through it. Then I put together a wick with a brass rod (1/16") to provide support and to secure it to the stopper. Brass rod with wick is pushed thru the stopper, drill a pilot hole for the brass rod centered in the stopper. See photos, the supply wires will come thru the stopper at each side of the wick. Put one wire through the stopper, then I wrapped the heating element around the wick. This is tricky and took several attempts to get it done cleanly. The supply wire for the end is then fed back through the stopper. This is a weak part of the design as it must run back to the stopper without touching the heater element. It does work, but I will try to improve on this. This entire assembly fits into the tin can and is the correct length to just submerge the bottom portion of the wick and not the wires. I forgot to do a sketch showing a section through this, but will try tomorrow. Joe

E s c by TOWN3810 Sub-Lieutenant   Posted: 30 days ago
Hi I am using a Blue Rain esc rated at 60 amp 480 amp stall current .Has all the features of the viper plus a finned heat sink and cooling fan . Powers 2 black and decker 600 drill motors with Graupner series 162 props motors approx £3.50 and esc £6.43 All on E BAY Or motors can be had from Potts in Derby .The motors draw 30 amps at full speed and I use a 5000 3 cell lipo The expensive bit Hobbyking supplied .The boat is a Jules Verne Cheers Ian T

Build by Joe727 Fleet Admiral!   Posted: 1 month ago
The heating elements in the hairdryer had two different wire gauges as elements. I removed the lighter gauge thinking they would probably draw less current. I am attempting to use 6 volts as that is what my boat is. 1. First Photo: Took a length of element and stretched it out as shown, started with a longer piece about 8". If you are at 12v probably longer. Use some alligator clip jumpers and attached to one end, ran it to negative terminal of my 6v SLA. Took another jumper and attached to a point on the wire, say about 7". JUST TOUCH the other end to the battery positive to see if it glowed, it did not. So just moved about 3/8" at a time till it glowed - See Photo. CAUTION, make certain you have a nonflammable surface to work on, I used a tile scrap. IT GETS HOT FAST AND WILL BURN, DON'T ASK ME HOW I KNOW. That's why I just touch the terminal till it glows then stop, let it cool for a while. 2. Cut element to length, than take your 16 gauge wire and the crimp tube shown in earlier post. Insert both into the tube and crimp it. I used a side cutter and carefully just squeezed enough. Make sure that the element will not pull out. Do the other end. Because I am using only 6 volts, I had flattened out the wire to give me more wraps on the wick. See photo and note. 3. In the lid of the box, I located the fan at one end, the exhaust stack at the other. Drilled a hole matching the fan opening and secured with two screws, drill small pilot holes so as not to crack the plastic. Drill hole to match brass tube OD, tube is about 1" long or so. Super glued brass tube in place. Excuse the sloppy copper sheet work on the inside of the lid, it was an experiment at the time. I added this a a bit of a heat sheild as the wick and element would sit below this. 4. Next photos show the interior of the box, not the best photos of the process as this was already built.... The mint tin set inside the plastic box was an idea to do two things; first isolate the heating element from the plastic,and two, provide a smaller vessel for the fluid. You may want to just use a metal container instead of the plastic box, again I was just using what I had on hand. The wick is laying in the tin with the element propped up at on end to keep it out of the fluid. Photo shown does not show much fluid in place. This needs some work, but worked for this test. Experiment, just be sure that the lower portion of the wick is in the fluid and the element wire wrap is above the fluid level. For the test, I used some mineral oil and a bit of glycerin, smoked very well. It's late so I will run it and photograph tomorrow. Cheers, Joe (Excuse the Imperial rather than metric)

Motor, mount & prop-shaft. by robbob Fleet Admiral!   Posted: 1 month ago
The prop-shaft, coupling and motor mount that I ordered from ModelBoatBits has arrived so it seems a good a good time to make up a supporting wedge for the mount to fix to. I do have a rigid brass motor alignment aid that I used when building the Crash Tender but do you think I can find it in the workshop?....nope! 😡 I expect it will turn up when I need it least! 🤞 Not wanting to waste time I used a length of heat shrink tubing over the motor coupling to make it as rigid as possible, a trick I had seen done elsewhere, and this enabled me to position the motor on its mount in the desired position and measure the angle that the mounting wedge needs to be made to. I used an offcut of beech that I had in the workshop which I cut to size and then shaped it on the rotary sander that I bought in Lidl, fantastic piece of kit !!. The wedge was then drilled to take the nylon motor mount and also the fixing screws that pass through the beech block, through the balsa base of the box and into the ply reinforcing plate that I put in during early construction of the hull. After cleaning up the hole through the keel the prop-shaft was keyed with some abrasive, smeared with some epoxy and then pushed through to mate with the motor coupling. I used the excess epoxy resin around the shaft inside the hull and used some packing tape to stop it running out when I inverted the hull to seal the lower end. A quick spin on the motor confirmed that the alignment was spot-on and the hull set aside while the epoxy set. The next step will be to plank the deck.

Fitting the rubbing strakes. by robbob Fleet Admiral!   Posted: 1 month ago
Before I can apply the final coats of epoxy on the hull I need to fit the two rubbing strakes. I started with the bottom rubbing strake which runs along the chine where the side skins and bottom skins meet. The strakes meet the external keel at the bow and also extend across the stern. I used a length of square section of obeche which needed a gentle curve towards the bow, rather than steam the wood I soaked it in water for a few minutes to soften it and then used a heat gun while bending the strip gently to the required curve. When the wood had cooled and dried the bend was set I did a test fit and drilled very fine holes through the strip so that the modelling pins I use to hold the piece in place would not split the wood. A 30 minute epoxy was used to fit the strakes on both sides of the hull and stern. Above this bottom strake is a second rubbing strake and this also meets the keel at the bow and runs across the stern, I used a broader and thinner obeche strip for this and it was prepared and fixed in the same way. The final pieces to fit will be the gunwales which run around the hull where the sides meet the deck but I will not fit them until I have planked the deck.

Railings by Joe727 Fleet Admiral!   Posted: 1 month ago
Last night I had done a quick railing mockup as seen in the first three photos. Decided to go with styrene and use a rectangular stanchions (verticals) and top handrail along with horizontal round intermediates. Drilled holes through the verticals and inserted the round rods, then glued. Worked pretty well. Next few shots show how I typically sketch up to scale and determine proper spacers, dividers come in handy for this. Then drew some guide lines for assembly, taped it to my tack surface, covered in wax paper and pinned the assemble in place. Pins do not penetrate anything,just uses pressure to secure. Some drops of styrene cement and the parts are welded together. Then on to all the railings needed. Will let dry overnight and trim ends in place. FYI -- Tack surface is just a piece of acoutical ceiling tile, I cut down the 2'x4' size to make smaller ones for my tiny workbench use. I learned this pinning method from building balsa airplanes, comes in handy a lot...... Joe

Cabin detail part 3 (instrument panels) by mturpin013 Fleet Admiral!   Posted: 2 months ago
After the Christmas break its back to the cabin to finish some of the instrument detail. You may recall I detailed the cockpit with some ply constructions to represent the general layout; I also intend to detail the compass, throttle controls, steering wheel, panel lighting, and instrument panel. The instrument panel was copied and scaled from various drawing and pictures and I came up with a three-panel unit where panels 1 & 3 are identical as they are for the two-engine managements system the centre panel deals with electrical things. I intend to make the panel out of 1.5 mm aluminium cut to size on the guillotine I then attached this to a hardwood block with some strong double sided tape this will be more than strong enough to hold the piece for the drilling/light milling operation. I worked out the hole positions using an absolute datum (same as CNC work, if only I was still working) This does take some time using my rather old milling machine making sure any backlash is taken out during the 28 linear movements. I used various sizes of centre drills to produce the holes as they give not only accurate size but also perfectly round holes on thin material and the only ones that needed to be a particular size (6mm dial holes) the others are for switches and LEDs which can all be a 3 mm location hole. Each hole was drilled and then chamfered to simulate a bezel on the dials. Finally, I milled a shallow groove (2mm x 0.3 deep) to simulate the separate panels. I have copied a number of different marine dials from the internet and using PowerPoint I aligned in a complete group and then printed and laminated them, this will be placed behind the aluminium plate using double-sided tape. Having fixed the dials in place I drilled through the holes where LEDSs will fit. The LEDs will be shortened and polished so they are flat to the face; these are then stuck in place. Next, I made all the switches from brass bar with a fine brass pin glued across its face to simulate the lever. These were painted gloss black and the centre pin picked out in red, they were then glued into the 3 mm location hole. The black knobs/pull switches were turned out of black Perspex and polished; they were then glued into the location holes. The whole instrument panel is then pinned on to the wooden framework which has been left in natural wood finish (ply) as it looks like the original boat was just a varnished ply finish.

Plumbing the water-cooling for the ESC by robbob Fleet Admiral!   Posted: 2 months ago
The HobbyKing ESC I’m using has the facility for water cooling and as it will be in an enclosed location without any free ventilation it seems sensible to utilise this feature. To keep the water circuit as short as possible I will put the pickup just behind the propeller and the exhaust on the stern but as the boat has a bulkhead just in front of the stern skin I need to make an access hole through it to allow me to secure the nut on the stern skin. I made a hole through the bulkhead large enough to get a socket on the nut and reinforced the hole with a ply plate, similarly I reinforced the inside of the stern skin where the outlet passes through it. When I was happy that the arrangement worked and I could attach the hoses and securing clips easily I glued and pinned the stern skin to the hull. The water pickup is a standard one that is readily available but it’s supplied with overly large and ugly fixing nuts, the inside one is of no consequence but I thought that the outer one needed smartening up so I put it on a threaded rod and locked it in place with another nut and put that into the chuck of a drill and used a file to re-shape the nut to a pleasing taper….who needs a lathe......😜 I had to reduce the height of the inner keel former as the pickup tube is not long enough to get a good fixing with the internal nut, as the inner keel is balsa I fitted a ply reinforcing plate to spread the load. The last ‘photo shows the location of the ESC, main battery fuse and receiver. The hoses will be secured to the ESC with spring clips throughout. I found that the silicone tube I use tends to kink rather easily if the radius of a bend is too small and I found it necessary to form a tight spring coil around the piece that loops the water back through the ESC to prevent this happening.