Thread: Packhard Body update wip.

Just spotted the wad punch in the firt pic. Gives a good idea of the size of your model.

Amazing work!!!

Originally Posted by Hermit

I'm not sure if this is what you mean CD, (the core), but perhaps you could do something similar? It's just a test fit of the core, without having shaped the top and bottom tanks and frame. (It looks vertically squashed in this view). The slots were done with an 0.8mm end-mill bit.

Radiator Core Test Fit.JPG

no hermit, because I have painted it, I cant get a silver or chrome paint that looks right, so ive made one out of brass sheet, that I'll have to drill, I will post a pic. of both this arvo, I'm not real good at explaining things.CD,well here we go,the wooden one just dose not look right,so Iintend to drill one mil holes in lines down the brass one then I'LL try and grind an old drill bit to a square ,put it in my drill press and with out turning it on, press each hole again so they are square like in the pic I'm modeling it off. make sence? CD.

Originally Posted by artme

Just spotted the wad punch in the firt pic. Gives a good idea of the size of your model.

Amazing work!!!

I'LL put a ruler with the next photo.CD. here we are "ARTME" it was originaly just the ten inches, but had to add a bit, now I think I'll have to take the front axle foward alsoCD.

That looks a lot better CD now that you have made them a little longer,I think you are right about moving the front axle forward a bit as well.

Eddie

Yep, I agree.

finaly photos speak for themselves, not real happy with the finished item, but its not to bad, forgot the body lifts off , held in place with magnets, will post other pics tomorrow CD.

Nice work CD. Looks good to me.
I see what you were aiming for with the grille now. It came up well.
Did you end up putting LEDs in the headlights?
(I'm looking forward to the inside view, with the body lifted off.)

G'Day "CD", You're a tough task master to not be pleased with such a top build. Cheers, crowie

Looks PBG from where I sit!!!

Absolutely fab col's dad A very interesting build have been watching from the beginning.

Yes Hermit I got the lights working but have to use the garden light (controlbox?) with the photo cell blocked off to make them work. I dont know how to wire it up with out it. the Photo's look ok digger, but close up there are things that I have to go back to and re do Tyres for one, Tail light number plates, radiator emblem Ive not got around to making yet, just little things that will just set it off Thank you all for your kind words CD

I love the view with the body off. You can truly see the work you've put into it - engine, gearbox, tailshaft, diff. Well done indeed.
The headlights look great.

If they're just standard white LEDs, both from the same batch, all you'll probably need is a low voltage DC power supply, larger than 3.2VDC, with a series resistor for each.
The resistor value determines the current, typically 20mA. The LEDs are about 3.2V at 20mA, so to calculate the value of the resistor, (Vsupply - 3.2)/.02 = resistance (in ohms). Round upwards to the nearest standard value.

ie. For a 12VDC supply: (12-3.2)/.02 = 8.8/.02 = 440 ohms. You could use a 470 ohm resistor (for each). This would give about 18mA current through each LED. To determine the wattage rating of the resistor, it's V²/R = 8.8²/470 = 0.16W. Nearest value above this is a 1/4W resistor.
So the final value is a pair of 470 ohm 1/4W resistors for a 12V (DC) supply voltage. (One resistor per LED.)

This is the simple way to power them, and there might be a slight difference between their brightness. A quick test circuit would tell you if they're close enough to be acceptable. If not, I could draw up a constant current circuit for you, but it would be more complicated.

Edit: I forgot to add - when looking from above, the flat side of the LED is the cathode, which goes to the negative side of the supply. This is also the side with the shorter pin.

Hi C D you have done a great job with the car ,and with those head lights you could do some serious night driving.so take it easy . , Eddie