A bit more progress made, a few better photos too.
Below is the new wheel in bare metal. This is built up from production parts and might be described as a test build.
The next stage was primer.
The grey shows up the detail quite well. Typical spoke width is around 0.007". Inconsistant etching has caused a few hiccups on the way.
The image below shows the component parts of one wheel, front or rear. Two fittings have been made. One is made to suit a 3/32" axle and has a 2.5mm x 8mm dia boss at the rear, and is supplied with a 2mm grubscrew, the other has a plain 1/16" hole, 'brake drum' detail and is intended for front axle fitting using Loctite or a preferred adhesive.
Right to left are wheel centre, inner etch, spacer, centre etch, spacer and hub, outer etch and finally the wheel rim. One reason these wheels do not come at PCS prices.
Assembly follows the same lines as earlier wheels and has already been covered at some time in the past, though spoke alignment is worthy of a few words. This is illustrated with a set of pictures. Apologies for the quality of number two!
Below is the inner etch. The spokes run from the inner hub to the inner rim of the wheel.
Next would come a spacer, but this has been omitted. The next etch, the centre one runs from the inner hub to the wheel well, thus it may be noted that the outer rim on this is a little wider than that of the inner etch. The spoke pattern is identical, though the dimensions are slightly different.
It may be noted that the spokes do in fact line up, in that the left hand inner spokes line up with the right hand centre spokes and vice-versa.
The centres of these two spokes are together, the outers would have the spacer between.
The last etch, the outer one, runs from the outer hub to the well. These spokes again follow the same pattern, but seem quite different due to the diameters of the inner and outer hubs. The hub is fitted between the middle of this etch and the middle of the centre etch, and again a spacer keeps the two outer rings apart.
The alignment of these spokes on the rim is equally spaced between the position of the other two etches.
Hopefully, not too
One of the reasons that this series of wheels look right is that the spokes are not only in a conical pattern, unlike most, but that pattern is pretty accurate, unlike all.
It is hoped that things will continue to develop. One small detail which I wanted to address was the hubs. A look at most vintage inner hubs will show them to be conical, thus a compromise hub has been made.
It may be noted that there is a small step at the outer end of this hub. This is where the outer etch is located. There is a similar step at the inner end, which locates in the middle of the centre etch.
This is the area where some problems have occurred. Clearances. A clearance of about a thou is totally thrown if both machining and etching dimensions vary. They did.
There are those who quite rightly will suggest that there is no need for such close limits, but in my mind is of course the old 'see through' wheels, a part of the project I hope to advance a little in the coming month.
The occasional enquiry comes through whereby folk request a set of wheels. The wheels I make are specific types, I do not make generic types.
This latest wheel is in profile a close to scale 19" diameter 60 spoke Borrani wheel. It is 5mm wide (too wide) in order that tyres may be obtained.
It is correct for some of the later 6C 1750 Alfas, early 8C 2300 Alfas and without doubt other cars (especially Italian ones) of the period.
Please PM if interested, at time of typing there are 9 sets left.
They will of course look good on any period car, but please ask with any wheels if a more suitable type is available. So, faced with a question 'are these wheels ok for my 8C 2900, the answer is that they are the closest you will find, but wait a few months and the correct ones will be available will be with us.
The next big step is those ol' see through wire. K3 Magnette, MGTC, A7 including Mrs Jo-jo etc.