mikey

So I bought a driveshaft loop but I've just realised I have two dirty big resonators in the way. Thusly: What's a boy to do? Shit's goan get messy innit.

My tacho is working ZOMG! ProZac sent me a spare stepper motor and I happened to be off sick yesterday when the courier arrived so I spent the next three hours stripping the guts out of the tacho and replacing it with the stepper and the worlds simplest circuit board. I wrote a simple little program and she's a good un. Finally!

I just kinda fell into PIC's because we used them at an old job for things. I am used to them now and I like that I can get them for free just by requesting samples from the Microchip site. Plus I have a couple of programmers and that. I just had a quick squizz at some STM32's. It'd be damn nice to have 32 bit registers and they've got heaps of features. Way more powerful than the baseline PIC's I've been using. But now I have a bunch of questions Looks like they have a 8Mhz internal oscillator, do you use that for some projects or always use an external one? What chip do you use for smaller projects which only need around 8 I/O's? Are there any in DIP packages? Do you need a fancy programmer for them? Is there a free C compiler? Thanks man

HUZZAH! I've gotten my speedo working. Basically I stripped the guts out of the stock speedo and put two stepper motors inside, put a hall sensor next to a diff flange, then I made some electronic thingys to measure the speed picked up by the sensor and move the motors in the speedo. Like so... This is the motor I used for the odometer This is the type of motor I used for the needle This is not my car but I basically did the same thing as this, sensor picks up the capscrews as they fly past the sensor: My hack circuit board: The processor is a PIC16F628A and it has two ld239 motor divers (one for each of the motors). The sensor is a Honeywell 1GT101DC. It all works pretty well. I was a shocked as you! Today I also bought some smaller tires, R888 245/45/16, clearance is touch and go with the flares, fingers crossed.

Ahh, I just checked, and the current size I have is 225/50 (not 60). So the diameter difference between them and 245/45's is only 4.5mm so should be sweet! Might be the way forward.

It is normal yeah, although I have pretty bad toe-in on one side too. One day I'll get adjustable control arms. I think we've got a go-pro at work I can pinch for the upcoming Hampton track day, so you can all laugh. TWO WEEKS TIME!! OMG

Tee hee hee! My first actual skid. Ever. Dem skids is fun huh?

Being a shithead. So much rev-limiter! After the above hooliganism it was time for new tires and go a bit wider. The old ones were 225 60 R16, so I tried 255 50 R16 semi slicks, which looked baddass but they'd foul on the flares. So I think I'll try 245 50 R16, but can't get those semi's in that size so will have to just be a street tire. I'm still not sure they'll fit either, so I may have to go to a 235! There's bugger all options in 16x9.5 really.

Good call, although maybe I'll get my cert before I smash the diff to bits.

You make a valid point. This will happen.

HAHA It is a bit weird to be at this stage. I dont really have anything else coming up worth posting about. It does feel like it's almost done. Strange.......

Nah not sussed the tacho yet, but yeah I am gonna put a stepper in and be done with it. Should be pretty simple. I just checked out Malcom's thread, good reading. I'm copying him and I'm gonna use the same speed sensor for my speedo, just ordered it from RS Online. Thanks for the tip.

So, I took this for a drive on the weekend. Still need to put a bunch of interior trim in, and go for a cert. It's dropped a cylinder somewhere in the last 5 months, hopefully that wont be a hard fix.

I've been working away but it's not very interesting stuff. I've cleaned up all my wiring and mounted the fuse box and rebuilt all the heater stuffs. Dash is back in. The tacho is being a total vag so I'm ditching that stupid circuit and replacing it with a stepper motor at some point when I care enough. Replaced the rubber bits on the quarter windows. If things go really well I might be driving this on the weekend. There's still lots of things to do; some upholstery, put all the windows back in, door lock actuators, all the interior panels, indicators, seats & belts. Mostly a million little thingys.

Good shit brother all looking legit. Brings back memories. Will be the fucken bizzo when all low and that. Yay!

Yeah man, those guys do a bloody through job and are great to deal with. After they painted the shell they weren't happy with the prep in a couple of areas so sanded it back and did it again, it had not effect on the price. Cant big them up enough!

Yep, I'm pretty damn happy with it

Yep, more than I expected too. Given the amount of work they did, and the quality, I thought the price was totally reasonable.

OH WOULD YOU JUST STOP IT!! Stokedness is on MAXIMUM.

Yeah, GT Refinishers have done such a damn good job, and a bloody nice fellas to boot. I'm a wee bit nervous of the final bill myself, oh well.

Golly gosh! Shit's looking dope.

So excited shit's happening with this!

Oh mean! I actually just found these little suckers on ebay a couple of days ago. I've ordered one, hopefully it doesn't take too long to show up, they look perfect. Glad to hear I'm not the only one who's done something like this. I pulled apart the speedo tonight and removed all the mechanical cable input. I mounted a stepper motor on the odometer and it spins the odometer and trip meter perfectly. So all I have to do is wait for the speedo stepper and mount that. Which reminds me, I have to drop off your other motor and ESC I have here. Thanks for letting me play with them, even though I wont be using them it was all part of the process of getting to this point. When suits? Whats your addr?

I think I'm gonna change tack. This BLDC thing seems quite tricky. So what is probably easier is driving the needle and the odo with little stepper motors I just pinched from old CDROM's at work: I even have a proof of concept we made whilst pissing around:

Deffo black! So stoked with how it came out. Just can't wait to start putting it back together!