question: hub-mounted speed sensor?

[tommyrich]

It is actually pretty quiet. The controller does "microstepping" which smooths out the vibrations. It is unnoticeable when driving.

Unfortunately I will not be attending the spring social. I am accompanying Dave and his electric Delorean to an Earth Day event in New York City. I do hope the SS is a good event, they usually are. This will be the first one that I have missed since joining the Delorean community.
Tom

[jgarland79]

I would like some more detail. What motor did you use? Where did you source it from? Can you post some images? Can you post a video of the speedometer needle while it's running?

[tommyrich]

I would like some more detail. What motor did you use?

3.1V stepper motor (SKU = SMT-355)

Where did you source it from?

AllElectrinics.com
$2.50 each

Can you post some images?

I thought I did.

Can you post a video of the speedometer needle while it's running?

I have one of it running a full-speed test ( I wanted to see how fast I could change speeds without stalling the motor) But I couldn't upload it here. I will have to host it elsewhere and provide a link.

Tom

[tommyrich]

Here is a short video...sorry it took so long, I got distracted by the vendor-bashing threads...

[Farrar]

Wow, amazing work! Well done!

[nkemp]

For those who may try mounting another speedo behind the D's face (such as the Maxima speedometer) ...

The needle coming through the face on the Maxima speedo is 1mm. The D's needle coming through the face is about .75mm. Thus if you want to maintain the original D pointer, then the hole must be enlarged a bit. A #60 drill bit is 1mm. I've not tried drilling the hole larger yet. The 1mm bits are so small that breaking in the hole is a real concern... the D's pointer material is steel.

Maybe there is a way to replace the D's metal parts with plastic and moint the D's pointer on the plastic.

2-cents worth ... or maybe less,

Nick

[LordFly]

Attachment 18349

I don't plan to produce them (very labor intensive), but if others are interested, I could provide more details.

I would love to have some more details! Especially about what is in that magic box that allows you to program/control it, as seen in the picture. The last time I did anything like that was with an HC11. Which is not exactly idea for this kinda thing.

BTW, the Delorean speedo DOES take miles off of the speedometer when driven backwards (so one could program a "Ferris Bueller mode" into the controller and let it take off the miles while sitting in the driveway ).

I don't know about everyone else, but I need a "Reverse Ferris Bueller mode" to add on all the miles that are missing from driving for years with no speedo