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Aquad

Member
Jun 12, 2020
33
12
Longwood, FL
Morning gang,

With some inspiration from others on this forum and the web, I began constructing a retractable, ceiling mount for my wall charger. I back my MY (Jospeh "Blue" Polaski) into my garage which puts my charging port close to the door going in/out of my garage. There's too much foot traffic around the vehicle and so I didn't want someone accidentally staging and messing up my charging cable and/or charging port on the vehicle. A ceiling mount, drop down version will hopefully solve that and look clean.

I drew most of my inspiration for the project from an article on Teslarati:
Retractable Tesla UMC Roof Mount

After what seems like 1000 hours of parts hunting and internet searching I gathered my parts and began construction. I used pocket/sliding door hardware for the track and wheels. Got some pulleys and misc hardware from McMaster-Carr (cool site that has a ton of stuff that can be tough to find elsewhere). If anyone is interested in recreating this or some version of it, I'd be happy to be more specific will my parts list.

I got the majority of it installed yesterday, but ran into 1 snag. The pulley that moves on the track angles in and can twist (see pics). This boogers things up and the cable doesn't consistently retract properly. So I took that bracket back down and my plan is to weld the pulley bracket and wheel hardware together so that there can be no other outside movement. I'll post those pics once I get them welded together and back up. Wish me luck.
 

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DonaldBecker

Member
Aug 24, 2020
138
147
95033
Two suggestions:
Look in sailing catalogs or your local yacht chandlery for ideas. Sailing tracks and blocks are expensive, but very robust.

I suggest a minor re-design. Using a spring to provide a constant retracting force will be a problem, and the charge cable running through a pulley is going twist and jam.
Instead use smooth-running sailing rope connected to the middle of the cable, run through small pulleys with the other end attached to a weight to provide the retracting force.
 

Aquad

Member
Jun 12, 2020
33
12
Longwood, FL
So, update. Rather than weld the wheel/track hardware to the pulley bracket, I went much simpler and just bolted the two together with a regular old bolt (instead of the bolt that came with the wheel hardware which is what made it twist/angle). Those 2 components are married together nicely now and there's no chance of them twisting or angling, so that's good.

New problem. I can't seem to get the spring tensioner set to the perfect setting. If you've seen the 11 second video (see below) you'll notice that she's able to easily pull the charger down and have it stay there when she wants. When she's done, she can also easily move the charger back up and out of the way. This balance is where I'm struggling. The spring balancer (same as in the video) I have is either to strong, and therefor won't allow the charger to hang freely once pulled down, OR is so weak that it won't retract the charger back up. Arrr!

 

Aquad

Member
Jun 12, 2020
33
12
Longwood, FL
Here's kinda where I am at the moment. I've got it set very weak so that I can at least use it for charging.
 

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Aquad

Member
Jun 12, 2020
33
12
Longwood, FL
And here's pics of the wheel assembly and pulley bracket bolted together.
 

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Aquad

Member
Jun 12, 2020
33
12
Longwood, FL
Two suggestions:
Look in sailing catalogs or your local yacht chandlery for ideas. Sailing tracks and blocks are expensive, but very robust.

I suggest a minor re-design. Using a spring to provide a constant retracting force will be a problem, and the charge cable running through a pulley is going twist and jam.
Instead use smooth-running sailing rope connected to the middle of the cable, run through small pulleys with the other end attached to a weight to provide the retracting force.


DonaldBecker, I appreciate you taking the time to provide some input. With regards to your suggestion. I understand the idea of the weight, but have 1 reservation. When the charging port is retracted and lifted out of the way, the weight would be hanging low correct? If that's the case, I'm not a huge fan as I'm trying to keep things up and out of the way. I don't want a weight hanging down for people to run into.
 

JonCook

Member
Mar 29, 2019
14
6
Naperville, IL
DonaldBecker, I appreciate you taking the time to provide some input. With regards to your suggestion. I understand the idea of the weight, but have 1 reservation. When the charging port is retracted and lifted out of the way, the weight would be hanging low correct? If that's the case, I'm not a huge fan as I'm trying to keep things up and out of the way. I don't want a weight hanging down for people to run into.


I did a counterweight system similar to what was referenced -- I have the cord attached to the counterweight running parallel to the charging cord along the ceiling and down the wall alongside where the charger has been mounted. You will need room for it to travel, but it keeps it out of the way (it drops down along the wall next to a cabinet in my setup).
 

DonaldBecker

Member
Aug 24, 2020
138
147
95033
I did a counterweight system similar to what was referenced -- I have the cord attached to the counterweight running parallel to the charging cord along the ceiling and down the wall alongside where the charger has been mounted. You will need room for it to travel, but it keeps it out of the way (it drops down along the wall next to a cabinet in my setup).

The rope allows you put the counterweight in a convenient place, generally adjacent to a wall. If you use rope designed for the purpose, running through a few turning blocks (pulleys) adds very little drag. If you need drag, use low quality blocks rather than low quality line.
 
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Aquad

Member
Jun 12, 2020
33
12
Longwood, FL
So here's my final setup. I tossed the spring balancer and instead used a counter weight system as suggested here. I bought a 4lb fishing weight off of Amazon and that weight seems to work well.

My only complaint is that I wish the cord itself remained tight, and higher up. I don't think I can achieve the perfect picture I have in my head with my current configuration. But don't get me wrong, overall I'm pretty happy with it. It remains high enough that I won't hit my head on it which was the big goal.

All and all, I dig it. Check out the video below to see the system in action.

 

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