Reviving a destroyed Pint
NotSure last edited by
@Lia sounds like an old vacuum but it works! Very cool.
@NotSure Not a happy noise at all. I'm sure it's something simple though, just got to find the cause.
blkwalnutgrwr last edited by
@Lia -- Sounds to my damaged ears like the rapid, flutter vibrations of a buzzer. To my eyes it looked like the buzzer noise only occurred while moving -- not just standing still. Interesting puzzle. Good luck with it!
@blkwalnutgrwr Sounds much worse in person I assure you lol. The video doesn't quite capture just how loud it actually is!
Like you say it occurs only under certain circumstances but how it manifests doesn't narrow it down too much.
Will give an update once I've found the issue :)
Holy crap that hub was hard to take apart. It was pretty tight but I eventually managed to break it lose after plenty of oil and destroying a few bits of spare wood to act as a dampener when hammering the axle out. Once whatever was stuck came loose I was able to push it through all the way with just my thumbs.
Looks like one bearing is utterly shot. It's got loads of play in it, enough that I can wobble the plate against the axle with the bearing seal being the bit that moves. Trouble is it won't come off. Since it's 6PM I'll hold off bringing out the big guns to rip it off but tomorrow it's coming off!
The scrapes on the hub wasn't me, that was the Van! Same side as the suspected dodgy bearing so makes sense.
Under close inspection it looks like there is some corrosion on one of the stator cores along with matching rust blobs on some of the magnets within the hub. Doesn't bother me too much as I'll just clean it off. Outside of that I think this might be a simple bearing swap... I hope.
Any recommendations on new bearings? Obvious choice seems to be Craft&Ride but curious if anyone has a special brand they use instead?
NotSure last edited by NotSure
@NotSure RGB LEDs are my guilty pleasure. I shouldn't love them as much as I do lol. Not sure how much current the 5v rail on the Pint can handle but I'm sure I can find a datasheet.
I am planning on doing something with LED's on this, thinking of integrating them on the rails for a special design.
Have yet to pickup the project again, feels bad leaving the Pint unattended across from me on the desk.
LidPhones last edited by
You are so close to reviving that poor Pint.... Bravo for all that effort and I bet you are the first with a Steve Austin (Lee Majors) Pint (just not the $6M).
Been a while since I touched this... I didn't forget!
That noise was still bugging me but I finally found the problem.
I though if I mount all the parts it would maybe stop it, no it made it worse!!! Well that's not right...
On closer inspection if I added the fender it parted my rails enough that the battery housing was no longer snug. Removing it I found even when snug there was a tiny bit of play.
Being as I want to redo the rails anyway I went ahead and printed up some templates to make the mounting points for the battery since I had yet to actually do that.
And guess what, NOISE GONE! 99.9% GONE!
Best get back to work on that footpad since that's next! Hope it works fine so I can get to making this look the part.
While fiddling around with the FSR (apparently I went overkill on the spacing) I've taken a brief look into how I'll finish up the rails.
For anyone interested about the footpad sensor on the Pint (maybe the same for other models) the FSR triggers pad activation when the resistance between the 3.3v pad pin and ground is 1k ohm or less.
My MK1 setup couldn't reach that without me putting an unreasonable weight in a single spot so will be reworking that design when I work up the courage to cut another set of traces out by hand.
Thinking of having a rocky low poly like design but with a glowing red space between the individual rocks.
Lighting these initially felt near impossible with how little space there is to work with till I came across EL tape.
It's near paper thin and glows when injected with an AC voltage which can be run off a small 12v driver circuit.
Better yet, you can cut some versions to nearly any shape you want.
Plan is to create a rigid backplate, put the EL tape atop, then a thin layer of acrylic to protect the EL tape and finally attach the rocky pattern that I'll have to print.
For the driver I'll have to place the driver board in the controller housing and see if I can step down the 63v to 12v to drive this. Fingers crossed it works as I think this'll look pretty cool and very unique.
NotSure last edited by NotSure
I used LED's and have never used EL tape before but I like your design.
Transparent filament swapped out at 1-2mm with a dark metallic filament might look cool.
Could perhaps cnc strips of transparent acrylic and paint them instead of printing them. Could even invert the design use the smooth transparent surface as exterior and paint/fill those engraved interior features.
Could maybe use LED strips and run them down channels engraved into acrylic.
Could just power them with a half dozen cr2032's. Just slap on some decent vhb and presto!
As someone who has experimented with ground effect lighting on their board for the sole purpose of ez night riding on dark, mostly unlit streets without a flashlight: illuminating the ground is more visually impactful as well as useful for general area illumination without disturbing one's night-adapted vision.
@NotSure The lighting is mostly to just glow through the cracks and not server a purpose other than look cool, I might opt for underglow using a more traditional LED strip later on. Ground effect lighting looks very cool and as you say better for the night-adapted vision.
Good suggestion with CNC on some acrylic. Currently don't have access to a machine but hopefully when I move to another property it'll have a garage or some detached building I can put big machinery in. For the time being I'm doing what I can in an apartment since noise and space are an issue.