My C5 up and running - Phase 2 - 24v conversion

[radiomarty]

Interesting stuff Lance - looking forward to seeing what you come up with 

[PLOD11]

If you come up with circit you need a PCB made for, my mate can do fantastic PCBs.

Maybe combine his efforts for the voltage and yours for current into one board 

Just a thought 

John

[C5 ENTHUSIAST + RESTORER]

Hi there Lance how did you do that ....?

Regarding the metal gearbox inserts I will have 4 made up by the end of next week ....

bye Chas

[Lancealot]

Had the motor connected to two batteries to give 24v and whilst it was rotating (6000'ish rpm) grabed the gear with a tea towel to induce some resistance (i.e. strain on the motor / gearbox). This must of cause heat and friction that melted the gear and also the tea towel has holes in it.

Nice one with the metal gear. thanks Lance

[MikeDX]

Must admit lance, that is quite an impressive cooking skill you have!

Hope you can get back up and running.

Failure teaches success

[Lancealot]

Dave,

In regard to brakes, I am using standard at the moment. In regard to yours sticking, check that you have not lost the little cir-clip that holds the pin in position. I had a similar issue once. Send a photo of your assemble we may be able to advise from the photo.

regards

Lance

[Lancealot]

Hi POD11, I think I have a circuit that will do both the 24v battery monitor and the current using two LM3914 IC's.
Drop me your email address and we can discuss in more detail

Lance

[radiomarty]

Put me down for two if you crack this Lance - ps are you planning on using this pod display in con - junction with your 4qd controller (just a thought 4qd sell an of the shelf LED bar type voltage monitor to suit the controller)

[PLOD11]

Hi there ...

No probs, if you have a circuit, i can send it to my mate who can make the PCBs, my e mail is G0XBJ@YAHOO.COM

I am not about much this coming week, but got some leave the week after.

John

[Lancealot]

Hi Radiomarty,
I have the 24v 5 LED display from 4QD. It is using a number of BC556B amplifier transistors and 2.2k resistors with volt steps of 0.5v. By looking at the LM3914 we can drive up 10 LED but will do just the 7 LED as per the POD.

Lance

[Lancealot]

Hi POD11,

I have produced a 24v monitoring circuit diagram but have not had a chance to produce it or test it. I am very busy at work so it will be some time before I get a chance to look at it. I am looking at the same circuit (x2 LM3914's, with a few component changes) for my current part due to using a dc current transducer (0-10vdc output signal) into Vsig2

.

Diagram below shows the proposed 1st part of the circuit.  (its been +20 years since my HND course).



regards

Lance

[PLOD11]

Tha looks just the job, i will pass it on to my mate, he may well knock something up on a pcb that can tested ...

Just a question, i have been looking at the qd controllers, whats the best one to get that would be suited to the c5 MOTOR RUNNING AT 24V  ??

Recomendations anyone

[Lancealot]

Hi POD11, I have ordered the Uni8 24 with cover, the twist throttle, matching handle and 5 LED battery monitor (but only got it to see what it was like) - £130. I understand Chas used the same on his.

Lance

[PLOD11]

Test PCB is being made as i speak using the circuit lancelot put on here, (with a few modifications).

Looks like that side of things is nearly complete, my mate is looking using the LED strips from the OLD pod as they have the bezel around them.

He is still working on the "current" part of the display, but has suggested a use for the LED strip on the left, maybe using the Yellows at each end for the indicators, and using the other leds for indications for the fan running (if switched) any other suggestions for the use of these leds ?

Will get some pics of the prototype when i next pop round to see him.

He has asked how many people might want these ??  No price as yet, but will get some sort of idea once the final board is completed.
They will come ready built with or with out LEDs (depending if you want to fit your own or supply the old ones from your POD or even fit these yourself)  a bit of soldering

More info to follow

[Lancealot]

Hi POD11,

Any more info on the circuit.

Lance