perdu Posted January 13, 2021 Author Posted January 13, 2021 Video, blimey G you are lucky I managed the stills, I would need a decent cinematographer to do that for you. Antonionionionionio, something like that. Can you wait 'til after lockdown is but a faint memory? I can show you why Ced's fixation on using the button lathe is a non-starter though. To keep the chuck at a proper opening the gears would have needed locking to prevent closing and changing the cutting diameter, Jacob's chucks dont work like that. As soon as some rotation is begun the jaws try to close up, not helpful if a fellow is trying to push a piece of square shaped plastic into the gap between the jaws. The Expo drill collet was closed right down to the minimum size so the spokes stayed the same under 'drive' Any road up, a test run. Concept prover only this time round, I do still have work to do on these. 9 1
perdu Posted January 13, 2021 Author Posted January 13, 2021 More work needed on the concept but at a pinch I could get away with this. I think I need to find a way to drill fourteen radial holes to establish mounting points in a line round the circumference... Maybe tomorrow. 11
CedB Posted January 13, 2021 Posted January 13, 2021 48 minutes ago, perdu said: I can show you why Ced's fixation on using the button lathe is a non-starter though. Thanks Bill. I meant, hold the plastic in the chuck and sand the spoke - wouldn't that be quicker? Whatever works though, you're the Master 3
hendie Posted January 13, 2021 Posted January 13, 2021 44 minutes ago, perdu said: I think I need to find a way to drill fourteen radial holes to establish mounting points in a line round the circumference... Looks like you be already got one Bill. Align the drill with one of those radial lines, drill hole, rotate hole around to next radial line the drill again and so on. That shaded disc you have is perfect for clocking 2
perdu Posted January 13, 2021 Author Posted January 13, 2021 Hmm I see what you mean Ced but... An inch and a quarter of thin plastic whizzing round with an abrasive tool attacking it? I am sure I'd have lost a lot of them Alan I expect to use that but it is a question of getting the centres of the hole aligned too. I'm on it. 4
giemme Posted January 13, 2021 Posted January 13, 2021 3 hours ago, perdu said: Can you wait 'til after lockdown is but a faint memory? I'd be more than happy Ciao 1
Fastcat Posted January 13, 2021 Posted January 13, 2021 Hi Bill, Lost track of this one a bit as I've been without proper internet since mid December following a move of house. Lovely thread and I'm glad you use the word properly pronounced as "buzz"! My old boss used to take the pee good and proper at my pronunciation. She called it a buss, heaven forbid! Some nice scratch building here and a great subject. Dave 1 1
perdu Posted January 13, 2021 Author Posted January 13, 2021 I have to confess Dave, at the beginning of the thread I used ordinary people's imagined spelling of buzz but an early conversation brought me to my senses. You haven't moved further away have you? We still going to see you at club meetings in Longbridge? (n.b. I am confidently expecting to be going back this year, I expect mid-summer to begin ending the madness.) 4
CedB Posted January 14, 2021 Posted January 14, 2021 15 hours ago, perdu said: Hmm I see what you mean Ced but... An inch and a quarter of thin plastic whizzing round with an abrasive tool attacking it? I am sure I'd have lost a lot of them Fair enough Bill, a gentler approach is often better! 1
Fastcat Posted January 14, 2021 Posted January 14, 2021 Hi Bill, 'Fraid so Bill in answer to the first question. I'm living at Shipston on Stour now so it's too far to attend our club meetings. Haven't touched a model in months due to the move but I'm not sure if I'll do any more modelling in future. My illness is affecting hand-eye coordination and balance so I may have to call it a day. Not even sure if I'll get to any shows but if I can, I will. Maybe attend our virtual meetings now I've got an internet again. Meanwhile I'll follow threads like this. Can't be bad! Dave 6
perdu Posted January 14, 2021 Author Posted January 14, 2021 Well at least you have a lovely spot to live in. Sorry we won't see those fabulous models of yours again but please do stay in touch, the zoom thingys are almost OK. 🤭🤔😃 All the better if you can join in. 2
Fastcat Posted January 14, 2021 Posted January 14, 2021 Hi Bill, Zoom's not too bad. Better than nothing but not a bit like a proper meeting where modelling's concerned. I've still got a good few kits to finish despite getting rid of a lot before we moved so I'll have to dig some of the "almost done" stuff out and see how I get on. I've found that placement isn't so good - it takes several goes to locate a screwdriver in a screw head for instance whereas before it was easy. Doesn't help with making models. Doesn't help with screwing things together if it comes to that. Dave 4
perdu Posted January 15, 2021 Author Posted January 15, 2021 I have trouble locating screw heads, never sure which glasses to try next. Prescription readers or distance and normal clarity of sight ones I use to drive and give focus nearer the VP down the road. Oh hell. Today's little task is making leafspring couples for the front axle which has to allow for steering movement I do not like the springs I carved out of a block back a page or so, so I have returned to old tried and tested methods No point rediscovering the wheel is there? So using a piece of expanded pvc sheet as a build board I began marking out the parameters. The rear of this sheet (usually used as the baseboard for the Brummagem Beer mat challenge) has a foamed plastic structure. Lovely stuff, takes a pin nicely. This length of 0.015" x 0.060" Evergreen strip has had a knuckle of Aeroclub small diameter tube added to the end section ready to begin forging the steel spring. 2nd leaf added to set. Most modellers are familiar with the pinning out technique so... 3rd or 4th The spring spec calls for a 7 layered spring but I am going to stop at 5, so sue me. Number 5 on. At this point the spring now holds its shape ready for turning round to add the lower spring That's all folks... 13
giemme Posted January 15, 2021 Posted January 15, 2021 57 minutes ago, perdu said: Most modellers are familiar with the pinning out technique so... Not me - pretty neat job, Bill Ciao 1
perdu Posted January 15, 2021 Author Posted January 15, 2021 Giorgio if you have never made flying models from balsa wood I can see it might be an unusual technique to you. Anyway It is as you see. A plan on the board and make strips follow the shapes you need and then new pieces can be added to produce what you need. Use the pins to make the strips bend into shapes we need. 2
Tomoshenko Posted January 15, 2021 Posted January 15, 2021 Might be a faff Bill, but I must say they look much better. 1 1
Pete in Lincs Posted January 15, 2021 Posted January 15, 2021 If I need to put a bend into strips of card I just use the old gift wrapping ribbon technique. Just pull it between the edge of a six inch ruler and my thumb. It naturally curves. Here's a demo for ribbon, the card is similar. https://www.youtube.com/watch?v=BMrkV5CMf0s 2
perdu Posted January 15, 2021 Author Posted January 15, 2021 Yes that's how I do it too Pete, some of the pictures show precurved strips ready for the second and subsequent strips. 2
perdu Posted January 16, 2021 Author Posted January 16, 2021 Mail call! I need these for the hub spindle drillings, the holes in there at the mo are barely the proper size for the axles but they will now all be the same size.. I have a set of 2mms on order too, arrive later next week. I have become fed up using not-quite-right sized drills so this is part of a concerted programme of harmonisation. Now the spindles will fit the drill instead of whatever bodgery I have been able to get away with for sizing. To be fair to myself this drill went through the hub by finger turning only, I didn't put it into a pin vice to drill it. The front spring sets have been completed First one finished Number two in production action and Both finished The spring leaves lengths will be treated to size them in pairs before they get on the buzz, at the moment they are in need of trimming but for now time to let the Tamiya Light Green set. And now I have decided to make the double set shape springs for the rear axle so it is time to mark out the fettling foam base for reshaped plasticard strips 12
giemme Posted January 17, 2021 Posted January 17, 2021 Definitely better than the previous release, they look the part Ciao
perdu Posted January 17, 2021 Author Posted January 17, 2021 Thank you all The sideways springs are on the way very much an oh dear how tedious so only a couple of pics whilst I struggle with the damned spokeyhub thing The carved one next to the replacement More layers of leaves, blimey there's lots of them Nearly there The tailing leaf will be shortened a tad but as I am worried about the weight of the bus sitting on them so I may cyano the unit before fitting it. 10
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