theo5042 Posted November 17, 2011 Posted November 17, 2011 I have made a housing off the mould that I made,it weighs in at 135grams,(camera on the blink,will add pics tomorrow) I think they will come in at about 200 grams with the fittings,just need to find some nice bulb holders now.
World Citizen Posted November 17, 2011 Posted November 17, 2011 (edited) Are these or these any good Theo, you would need to mould a tube into you housing and then you could bond them in Is that each and what does a stock unit weigh? Edited November 17, 2011 by World Citizen
theo5042 Posted November 17, 2011 Author Posted November 17, 2011 (edited) Are these or these any good Theo, you would need to mould a tube into you housing and then you could bond them in Is that each and what does a stock unit weigh? Thanks for that. Yes that is per each. I will check weight of the stock units tonight,I think they were about a kilo, if not a bit more.(just cheked-1.35kg) I am going to do some more work on the mould,they are ok,but not easy to lay up . I think Iwill may make a" thimble" to take the bulb holder ,that may also eliminate the need for a cover over the back. Edited November 17, 2011 by theo5042
theo5042 Posted November 23, 2011 Author Posted November 23, 2011 Some pics of the tail light housings,these are the first out of the mould,it needs a bit more tweeking but should be ready to go soon.I am waiting for the bulb holders to turn up.
GaryH Posted November 23, 2011 Posted November 23, 2011 Cool Theo How are the lenses going to screw into the housings (presuming there won't be a threaded hole in the housings) ?
theo5042 Posted November 23, 2011 Author Posted November 23, 2011 Cool Theo How are the lenses going to screw into the housings (presuming there won't be a threaded hole in the housings) ? There will be threaded inserts to take original screws.
GaryH Posted November 23, 2011 Posted November 23, 2011 There will be threaded inserts to take original screws. Thanks Theo (thought that just after I posted the question ) lightweight ones hopefully
burgundyben Posted November 23, 2011 Posted November 23, 2011 There will be threaded inserts to take original screws. I've got a nutsert kit if you wanna borrow it.
theo5042 Posted November 23, 2011 Author Posted November 23, 2011 I've got a nutsert kit if you wanna borrow it. Thanks- will give you a shout.
theo5042 Posted November 23, 2011 Author Posted November 23, 2011 +1, nice effort I think they will come out at about £150. for the pair. I will use a weatherproof plug on the back,that should eliminate the need for full on cover over the back which would just add weight.? I will update the pics as the bits turn up.
theo5042 Posted November 23, 2011 Author Posted November 23, 2011 I think they will come out at about £150. for the pair.I will use a weatherproof plug on the back,that should eliminate the need for full on cover over the back which would just add weight.? I will update the pics as the bits turn up. Some help please. Do l.e.d's need some sort of driver or can they go straight onto a dc system.?Thinking of using them on my car,would they draw less current?
Jonny Hart Posted November 23, 2011 Posted November 23, 2011 Some help please.Do l.e.d's need some sort of driver or can they go straight onto a dc system.?Thinking of using them on my car,would they draw less current? If you are referring to retrofit automotive LED bulbs, then the "driver" is in the bulb itself so no additional circuitry is needed. But, If you want to connect plain old LEDs, then you need to limit the current to ~10mA by fitting a series resistor. You can work out the resistor value as follows: Ohms law V=IR V = 12 (12VDC) I = 0.010 (10 mA) R = V / I = 12 / 0.010 = 1200 ohms or "1K2" in electronics speak. The auto LED bulbs usually use ~20 ultrabright LEDs - I expect these draw about 20mA each so 20 x 0.02 = 0.4 Amps. At 12V that is 4.8 Watts (P=IV) HTH
Dr Rock Posted November 24, 2011 Posted November 24, 2011 If you are referring to retrofit automotive LED bulbs, then the "driver" is in the bulb itself so no additional circuitry is needed. But, If you want to connect plain old LEDs, then you need to limit the current to ~10mA by fitting a series resistor. You can work out the resistor value as follows: Ohms law V=IR V = 12 (12VDC) I = 0.010 (10 mA) R = V / I = 12 / 0.010 = 1200 ohms or "1K2" in electronics speak. The auto LED bulbs usually use ~20 ultrabright LEDs - I expect these draw about 20mA each so 20 x 0.02 = 0.4 Amps. At 12V that is 4.8 Watts (P=IV) HTH I just got the bulbs from Ultraleds and put 'em in the taillights....
Jonny Hart Posted November 24, 2011 Posted November 24, 2011 I just got the bulbs from Ultraleds and put 'em in the taillights.... Yeah that's fine but Theo just said "LEDs" - it wasn't clear if he was buying LED car bulbs or trotting down to Maplins. He also asked about current draw.
theo5042 Posted November 24, 2011 Author Posted November 24, 2011 Thanks for the input gents. What I want to achive is standard bulb holders for the standard bulb,but the option to fit led bulbs,just wanted to know if the l.e.d bulbs would need some sort of driver,from the comments ,I should just be able to swop out a standard bulb with a l.e.d. ?
Dr Rock Posted November 24, 2011 Posted November 24, 2011 I should just be able to swop out a standard bulb with a l.e.d. ? That's what I did.
Jonny Hart Posted November 24, 2011 Posted November 24, 2011 Thanks for the input gents. What I want to achive is standard bulb holders for the standard bulb,but the option to fit led bulbs,just wanted to know if the l.e.d bulbs would need some sort of driver,from the comments ,I should just be able to swop out a standard bulb with a 12V l.e.d. bulb ? EFC (Sorry to be pedantic). YES you can fit one of these: 12V LED Bulb No, you cannot fit one of these (without a series resistor): LED
theo5042 Posted November 24, 2011 Author Posted November 24, 2011 EFC (Sorry to be pedantic). YES you can fit one of these: 12V LED Bulb No, you cannot fit one of these (without a series resistor): LED Nice one Jonny Very usefull info,I understand the difference now.hanks again for th input.
theo5042 Posted December 12, 2011 Author Posted December 12, 2011 An update on these tail lights. I have taken one set off the mould ,having played with them for a while,I want to make some improvements to the mould to make it easier to work with.This will also give a better product,so please bare with me.
MrPerkles Posted December 12, 2011 Posted December 12, 2011 An update on these tail lights.I have taken one set off the mould ,having played with them for a while,I want to make some improvements to the mould to make it easier to work with.This will also give a better product,so please bare with me. im not taking my clothes of for them
GaryH Posted December 12, 2011 Posted December 12, 2011 im not taking my clothes of[f] for them As you were
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