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> TINKERGINEERING for those that are interested, We are helping to put this together
Mikey914
post May 22 2020, 01:51 AM
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Thought I'd take a moment to introduce @TINKERGINEERING

She reached out to us and with the help of her dad they are doing an electric 914.
There's a whole story they are documenting, but thought I'd encourage them to post up a little of what they are doing.

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914e
post May 24 2020, 03:38 PM
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Frances, to answer your question about the motor controller. The old DC controller will not work with an AC motor. AC motors and controllers are generally sold as matched package.

My kids did their first conversion a little older than you about at 13 or 14. It took them awhile to talk me into it. They did a complete restoration of a 74 super beetle.

Attached Image

Attached Image

They went a few months past their deadline of it being ready on their 16th birthday.

There was two of them so they ended up doing it in little over two years. The bulk of the time was sanding and doing bodywork. Tons of research by all of us.

We are current restoring a 914, like yours it was converted to electric about 20 years ago. With what looks to be about the same system and layout.

Do you plan on running the same 144 volts for the AC motor? 144 volts is a common voltage for conversions. For brands like HPEVS and NetGain 144 volts is their highest AC motor voltages. I might have the manual for your controller and the motor.
If they still work and most do, they still have fair amount of value to the conversion crowd.

I am not replacing the working DC system till after I have the rest of the car finished. Switch out the motor, controller and contactors is weekend project. I am leaning to the Netgain Hyper9 which would perform like a 914/6.

For a 914 even a 96 volt system is pretty quick. The bug is a 96 volt system and I still limited the power. Luckily my kids still let me set up the controller parameters or that setting would be 100%

In my view it is best to figure out what batteries you can fit, that will dictate your final voltage. That will help determine the voltage range of the motor. My son and I built foam core mockups of the modules and the motor to work up the placement and clearances.

We will be mocking up the battery enclosure for the 914 hopefully today and tomorrow. Foam core is much easier to handle and easy to modify before we make the metal enclosure.

High schools have thankfully brought back technology classes, that can give you access to 3D printers, CNC, laser cutters and more. Often they are eqipped with larger than what most people have at home. Most importantly it can give you free educational access to CAD software. Plus teachers love seeing projects like these.

It is great to see you wearing gloves. You and your dad need a set of insulated tools. Always use the insulted tools anywhere near the batteries or any of the electrical.
I was worried when I saw you removing the batteries with regular tools till you mentioned they were dead. Hopefully you measured them all, you can end up with a mix of some dead and some charged.

If you and your dad PM I can point you the right tools and which ones you likely to need. They are designed for high voltage electricians to use everyday so they are very expensive. So expensive they make Snap-on automotive tools seem cheap. You only need a few sizes. I found a low cost composite ratchet, good quality decent priced screwdriver sets, an AC/DC clamp on multimeter with current in rush measurement, along with specialty safety equipment

Give the batteries respect. Your complete pack will have enough current to run about 10 houses and there is no way to turn it off. It is basically a live electrical panel. Those final connections are live.

Great project, I'm sure my kids would love help in anyway they can.






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TINKERGINEERING
post May 24 2020, 05:42 PM
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QUOTE(914e @ May 24 2020, 02:38 PM) *

Frances, to answer your question about the motor controller. The old DC controller will not work with an AC motor. AC motors and controllers are generally sold as matched package.

My kids did their first conversion a little older than you about at 13 or 14. It took them awhile to talk me into it. They did a complete restoration of a 74 super beetle.

Attached Image

Attached Image

They went a few months past their deadline of it being ready on their 16th birthday.

There was two of them so they ended up doing it in little over two years. The bulk of the time was sanding and doing bodywork. Tons of research by all of us.

We are current restoring a 914, like yours it was converted to electric about 20 years ago. With what looks to be about the same system and layout.

Do you plan on running the same 144 volts for the AC motor? 144 volts is a common voltage for conversions. For brands like HPEVS and NetGain 144 volts is their highest AC motor voltages. I might have the manual for your controller and the motor.
If they still work and most do, they still have fair amount of value to the conversion crowd.

I am not replacing the working DC system till after I have the rest of the car finished. Switch out the motor, controller and contactors is weekend project. I am leaning to the Netgain Hyper9 which would perform like a 914/6.

For a 914 even a 96 volt system is pretty quick. The bug is a 96 volt system and I still limited the power. Luckily my kids still let me set up the controller parameters or that setting would be 100%

In my view it is best to figure out what batteries you can fit, that will dictate your final voltage. That will help determine the voltage range of the motor. My son and I built foam core mockups of the modules and the motor to work up the placement and clearances.

We will be mocking up the battery enclosure for the 914 hopefully today and tomorrow. Foam core is much easier to handle and easy to modify before we make the metal enclosure.

High schools have thankfully brought back technology classes, that can give you access to 3D printers, CNC, laser cutters and more. Often they are eqipped with larger than what most people have at home. Most importantly it can give you free educational access to CAD software. Plus teachers love seeing projects like these.

It is great to see you wearing gloves. You and your dad need a set of insulated tools. Always use the insulted tools anywhere near the batteries or any of the electrical.
I was worried when I saw you removing the batteries with regular tools till you mentioned they were dead. Hopefully you measured them all, you can end up with a mix of some dead and some charged.

If you and your dad PM I can point you the right tools and which ones you likely to need. They are designed for high voltage electricians to use everyday so they are very expensive. So expensive they make Snap-on automotive tools seem cheap. You only need a few sizes. I found a low cost composite ratchet, good quality decent priced screwdriver sets, an AC/DC clamp on multimeter with current in rush measurement, along with specialty safety equipment

Give the batteries respect. Your complete pack will have enough current to run about 10 houses and there is no way to turn it off. It is basically a live electrical panel. Those final connections are live.

Great project, I'm sure my kids would love help in anyway they can.


WHOA!
I like the foam mock up idea. we are still new to this and learning the language. I like the LED headlamps on the big. Cool color too. I believe all the DC stuff is coming out. We are hoping someone will find a use for it. Used the Curtis is still expensive. they said there wasn't many miles on this gear. just older now.

We should defiantly hear more about what you guys have learned. So many great people willing to share here! More to come Thanks for checking in.

(My Dad and I read and write all messages together - My Dad, Daniel say his and likes all the info you shared)
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Posts in this topic
Mikey914   TINKERGINEERING for those that are interested   May 22 2020, 01:51 AM
sb914   What a cute video. Subscribed!!!!   May 22 2020, 05:37 AM
TINKERGINEERING   What a cute video. Subscribed!!!...   May 24 2020, 06:22 PM
davep   I am learning surfing this summer! Thats the ...   Jun 21 2020, 08:20 PM
rick 918-S   :confused: what video? BTW: :wttc: :assimilat...   May 22 2020, 05:50 AM
TheCabinetmaker   Had to look for it in her signature. Here ya go, R...   May 22 2020, 05:57 AM
Rleog   Subscribed, definitely. This kid has loads of pers...   May 22 2020, 06:58 AM
TINKERGINEERING   Subscribed, definitely. This kid has loads of per...   May 24 2020, 06:29 PM
Cairo94507   She is a very smart, talented little girl with so ...   May 22 2020, 07:09 AM
IronHillRestorations   This is great! A 914 EV held the record for f...   May 22 2020, 07:15 AM
fixer34   So, she is like 11 yrs old... Looks like something...   May 22 2020, 07:48 AM
Matty900   So, she is like 11 yrs old... Looks like somethin...   Jun 21 2020, 01:07 PM
914Toy   :popcorn:   May 22 2020, 08:25 AM
johnhora   Thanks for posting Mark...this is SO COOL....   May 22 2020, 08:47 AM
Mikey914   Yes spent about a hour on the phone after they rea...   May 22 2020, 08:54 AM
Jett   Yes spent about a hour on the phone after they re...   May 23 2020, 09:48 AM
TINKERGINEERING   Yes spent about a hour on the phone after they r...   May 24 2020, 06:01 PM
914forme   I want the transparent tool that automates the lug...   May 22 2020, 09:31 AM
StarBear   So amazing and enjoyable! My favorite watch no...   May 22 2020, 09:43 AM
TINKERGINEERING   So amazing and enjoyable! My favorite watch n...   May 24 2020, 05:32 PM
mrholland2   I hope she caught the Vintage Voltage episode. Tha...   May 22 2020, 10:05 AM
914forme   @Mrholland2 the answer is yes, though the kit so ...   May 22 2020, 01:02 PM
914e   She nailed the first skill you need for a 914, ste...   May 22 2020, 02:39 PM
oldschool   :Qarl: ...Yup cool and props for her and who ever ...   May 22 2020, 05:37 PM
djway   The Force is strong with this young Padawan. Someo...   May 22 2020, 11:36 PM
TINKERGINEERING   Thank you all, especially Mark, for all your suppo...   May 23 2020, 12:56 PM
SirAndy   Thank you all, especially Mark, for all your supp...   May 23 2020, 05:49 PM
TINKERGINEERING   Thank you all, especially Mark, for all your sup...   May 24 2020, 06:17 PM
djway   Thank you all, especially Mark, for all your supp...   May 23 2020, 10:59 PM
mepstein   Frances - :wttc:   May 23 2020, 01:44 PM
TINKERGINEERING   Frances - :wttc: Hi thanks! still learning ...   May 24 2020, 06:13 PM
fixer34   The second video is a riot!   May 23 2020, 05:00 PM
TINKERGINEERING   The second video is a riot! Thanks for the w...   May 24 2020, 06:15 PM
TINKERGINEERING   The second video is a riot! Thanks Learning ...   Jun 21 2020, 12:40 PM
cuddy_k   So much fun and incredibly impressive! @tink...   May 23 2020, 09:16 PM
TINKERGINEERING   So much fun and incredibly impressive! [b]@...   May 24 2020, 06:05 PM
r_towle   :wttc: If you need anything, just ask! And ...   May 23 2020, 10:41 PM
TINKERGINEERING   :wttc: If you need anything, just ask! And...   May 24 2020, 06:11 PM
mtndawg   That wooden box with the kitchen drawer handle doe...   May 24 2020, 08:47 AM
TINKERGINEERING   That wooden box with the kitchen drawer handle do...   May 24 2020, 06:08 PM
914e   Frances, to answer your question about the motor c...   May 24 2020, 03:38 PM
TINKERGINEERING   Frances, to answer your question about the motor ...   May 24 2020, 05:42 PM
Mueller   Been following her for a while over on Instagram, ...   May 24 2020, 05:41 PM
TINKERGINEERING   Been following her for a while over on Instagram,...   May 24 2020, 05:44 PM
TINKERGINEERING   Thought I'd take a moment to introduce [b]@[...   May 24 2020, 06:19 PM
Matty900   Another awesome video was just posted :Qarl: I ha...   Jun 21 2020, 01:17 PM
ejmetz   Hey Frances (and Daniel) - awesome project!...   Jun 21 2020, 08:10 PM


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