1500gp
Joakim Bonnier
Posts: 40
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Post by 1500gp on Aug 22, 2013 5:00:25 GMT -5
wow ..... you kill me ... Peter, please, go slowly, because I'm falling off my chair ....
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Post by Peter Seager-Thomas on Aug 22, 2013 14:49:59 GMT -5
Mark, I am forever working on cars of an earlier period, but many do not fit the criteria required.
The car being (slowly) built is a prototype, and I expect several changes in due course.
Danny has led the way with his Darracq cars, true scratchbuilt cars.
This is my first effort to follow, promoting what I consider a proper scratchbuilt car.
Peter.
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Post by Dave Wisdom on Aug 23, 2013 2:22:06 GMT -5
Peter; what a beautiful model you are building. True scratch building at its best. Following this closely and very much looking forward to seeing the completed work.
Dave
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Post by Peter Seager-Thomas on Sept 5, 2013 15:54:38 GMT -5
A briefer entry than intended due to computer problems. Again. Work on the Delage has been concentrated on completing the basic chassis and building the wheels. The chassis is constructed from 16g brass. 2 pieces are soldered together then the two side rails are drilled and shaped as required. Most material is removed with the mill with the trusty files only coming into play for the final shaping. Only limited holes are drilled, these being for front spring (front) anchors and front and rear mounts for the rear springs. The front brake operating cross shaft remains to be drilled. [/URL] Much is actually somewhat oversize by up to 50%, but when that 50% is perhaps 10 thou, it does not seem so bad. I did consider steel for the frames but was wary of drilling tiny holes in it. The next stage will be separating the two rails and jigging up for the motor mount, together with front and rear axle location. Work on the wheels of course started a while back and after several delays is now progressing rapidly, indeed one project for this winter is to build up wheels for all the cars planned. More on this in the next post. Peter.
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Post by Mark Huber on Sept 6, 2013 8:56:27 GMT -5
Peter,
I'm a bit confused (perhaps a normal state for me). The picture shows two chassis rails soldered/joined together? Was that in order to line up the holes or joints exactly?
How many cross sections will the chassis have?
This is looking VERY interesting.
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Post by Peter Seager-Thomas on Sept 6, 2013 14:22:46 GMT -5
Mark, you are spot on. A left over habit from model railway days and building locomotive chassis’. Soldering the two chassis rails together will ensure the holes on each chassis rail are aligned and also means you only have to mark them out once. The piano wire crosstubes will be joined by other parts to make a rather stronger structure. The motor will be mounted almost exactly halfway between the axles. Whilst the body to be fitted is a long way off, a basic body will be made to ensure clearances etc. Peter.
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Post by Chris Wright on Sept 6, 2013 15:03:36 GMT -5
Beautiful! a true work of art.
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Post by Taffy on Sept 7, 2013 5:54:58 GMT -5
Peter, these brake drums have real pads inside, I suppose I like the last picture. It looks, as if it were taken in the first light of the early morning and gives you a good start into the day...
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Post by Peter Seager-Thomas on Sept 7, 2013 15:31:17 GMT -5
Hi Taffy. Do not joke about brakes. OK, there may be room if I did not use the ball bearing, but operation would be a problem. Interesting though... I am working on a braking system for all models with small motors, which explains why I make such little progress. I work on one project, then become interested in another. I ought to take notes on my photo's, some are great, some are terrible. Natural light is always best. Peter.
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Post by Aurora on Sept 9, 2013 5:49:49 GMT -5
I hope you maintain your interest and finish this project Peter. What beautiful craftsmanship!
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Post by Andrew Rowland on Sept 10, 2013 7:25:03 GMT -5
Really, really special work Peter. Please keep going so we can see the finished project.....
VERY inspiring. Andi
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Post by Peter Seager-Thomas on Sept 11, 2013 14:19:18 GMT -5
More on the Delage. As is so often the case, shortly after a significant action (parting the chassis rails) I found a little more information on chassis fixings, so now front spring shackle and rear damper mounts have holes drilled. The front damper mounts serve a dual purpose, not only providing somewhere to mount the dampers, but also to provide jigging holes for the rear axle mounts. The part finished mounts will eventually be joined at their front ends, doubling up as a frame spacer and also a mounting for the pinion bearing. Still a bit of material to remove from the rear of the rails. The rear axle is a Slot it parts, though may yet change. Once this area is complete, the motor mount and front axle will see a little attention. Peter.
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Post by Peter Seager-Thomas on Sept 15, 2013 12:29:04 GMT -5
Even more Delage 2LCV. The way I intended to do the steering was in my head more than on paper. It is now finalised though the track rod must be remade as a 0.25mm error has rather put the steering out. The axle as was is unchanged other than removal of material on the lower edge, left there for handling purposes. The first work was to solder on the brass yoke, which again aids handling. One major change was made, which brings the track rod closer to prototypical practice anyway. Previously planned to sit on top of the yoke, it now sits below. The main guide pivot is 1mm piano wire, the track rod pivots 0.9mm steel pins, the guide is a heavily modified MRRC. The mounting for the axle should be made this week. The motor mount is now well advanced, so the pinion shaft mounting must now be made to ensure 100% alignment of motor, pinion bearing and rear axle. Many errors are occurring, so an additional tools are now due. I decent illuminated magnifying glass and a general assembly jig. Digital readouts on the mill would be good too. Peter.
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Post by Peter Seager-Thomas on Sept 18, 2013 12:36:12 GMT -5
More Delage 2LCV. The chassis is now all but complete with only the driveshaft to make up. All will now be dis-assembled for a few clearances to be improved and proper pivots made for the linkages. The rear of the motor will come level with the front of the cockpit so will all but be out of sight. I did give some thought to a ball race pinion shaft bearing but went for a brass bearing in the end. The dumb irons prevent the front axle from just sliding into place, so it must be fitted with the mount loose to start with. The guide is MRRC, as used on most cars I have built. I’m hoping to complete the fettling over the weekend, ready for full tests the following weekend. Peter.
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Post by Chris Wright on Sept 18, 2013 13:02:57 GMT -5
Peter, absolutely incredible engineering.
After playing with those 030 can motors for a while, I've found that any unwanted friction will hamper their performance considerably.
It may be too late now, but ball-bearings on that motor shaft was a great idea, you are going to be hauling considerable weight there with all that glorious brass.
Fantastic stuff,
Chris
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