[Chilly Duncan]

Latest from Trinity:

Trinity is now offering "rotor re-charging". Based off of our world-renowned slot car zapper which has the capability of charging "samarium cobalt magnets," we have rebuilt this with proper jigs and alignments to charge rotors.

Basically a rotor is like a glass of water....You can only charge or fill to the top of the glass. The meaning is if a rotor has a strength of 1424 this is the maximum we can charge. So the service is perfect for tired or very used rotors. This service can possibly recharge them to the parameters when you first purchased them.

When we receive your rotor (must come in a tube with the foam inserts), we will first check the strength and write it on the tube with an orange sticker. We will then re-charge to its capacity and write the new readings on the blue sticker.

We cannot guarantee numbers, percentages, etc.

Cost of the service is $5.00 and will be shipped by return UPS.

*4 rotor minimum.......you pay all shipping back.

Only payment method accepted is via credit card. Send you name, address, phone number, email address, credit card number, expiration date, name on card, and 3 numbers on the back of the card....We only accept Visa and Master-Card.

[SuburbnHooligan]

good deal.
but i wonder how long it will be before a pit box friendly zapper hits the market for hobbyist purchase. i can see a market in the racing world for one. kind of a modern day version of a com lathe.

[andystoybox]

Too much voltage needed. The coils are huge on that setup. The 380 size zapper that we use at work was too cost prohibitive to duplicate in a second bench because the return wasn't there for the dollars being spent.

That being said, measuring and magnetizing is still black magic. There are a ton of variables but at least Trinity is trying to be fair and show an improvement between the two measurements on the stickers. Plus, $5 isn't too much for what is being done so you won't complain if you don't see any improvement.

[LongRat]

How many modern motors are actually using Samarium-Cobalt rotors? I thought pretty much everything was using NdFeB?

[fastharryDOTcom]

the real issue is....Cost of return shipping..and is there a handling charge?...Way better if they shipped in a 4.99 flat rate bubble envelope...


and the second issue is....no way I am writing all my CC info on a piece of paper.....


Here's an idea....create service invoice...send it to my email...and allow me to pay by PP online..or use a secure CC transaction page.....


Non of Trinitys business what my CC info is...

[kufman]

Originally Posted by andystoybox

Too much voltage needed. The coils are huge on that setup. The 380 size zapper that we use at work was too cost prohibitive to duplicate in a second bench because the return wasn't there for the dollars being spent.

That being said, measuring and magnetizing is still black magic. There are a ton of variables but at least Trinity is trying to be fair and show an improvement between the two measurements on the stickers. Plus, $5 isn't too much for what is being done so you won't complain if you don't see any improvement.

Actually, voltage isn't the issue, current is. You need amp-turns not volt-turns to do the job at hand.

[ta_man]

Originally Posted by fastharryDOTcom

the real issue is....Cost of return shipping..and is there a handling charge?...Way better if they shipped in a 4.99 flat rate bubble envelope...


and the second issue is....no way I am writing all my CC info on a piece of paper.....


Here's an idea....create service invoice...send it to my email...and allow me to pay by PP online..or use a secure CC transaction page.....


Non of Trinitys business what my CC info is...

What is the point of having a credit card if no one is allowed to use the number to allow you to pay for stuff?

[andystoybox]

Paypal keeps the number and bills the transaction. Info isn't traded every time you buy something.

[ta_man]

Originally Posted by andystoybox

Paypal keeps the number and bills the transaction. Info isn't traded every time you buy something.

Every store doesn't take PayPal yet. So no shopping for you unless they take PayPal? Never used credit cards before you got a PayPal account? Must be pretty limiting.

[fastharryDOTcom]

Originally Posted by ta_man

What is the point of having a credit card if no one is allowed to use the number to allow you to pay for stuff?

Because an online invoice is way more secure than writing it on a piece of paper.

[kufman]

Basically a rotor is like a glass of water....You can only charge or fill to the top of the glass. The meaning is if a rotor has a strength of 1424 this is the maximum we can charge. So the service is perfect for tired or very used rotors. This service can possibly recharge them to the parameters when you first purchased them.

One question for Trinity.... what are the units for your "1424" number?

[fastharryDOTcom]

Originally Posted by kufman

One question for Trinity.... what are the units for your "1424" number?

and where are we supposed to get the tubes with foam inserts?...you won't accept any other proper wrapping?

[rccardude04]

Originally Posted by kufman

One question for Trinity.... what are the units for your "1424" number?

Doesn't really matter does it? It could be in (Goats)/(National Holiday) and it's still the same percentage increase.

-Eric

[kufman]

Originally Posted by rccardude04

Doesn't really matter does it? It could be in (Goats)/(National Holiday) and it's still the same percentage increase.

-Eric

Matters to me because I know how strong certain magnetic materials are. If they are only re-magnetizing to a fraction of what the material can hold then it isn't worth the money.

[rccardude04]

Got'cha. Can we assume they're good quality Neodymium? You should be able to figure out what units it is by a power of ten I would think? mGauss maybe? I'm not exactly a magnetics expert but I'd think you could get a really well-educated guess if you know the material.

-Eric

[ta_man]

Originally Posted by kufman

Matters to me because I know how strong certain magnetic materials are. If they are only re-magnetizing to a fraction of what the material can hold then it isn't worth the money.

I beleive the overall strength of the rotor depends on more than just the material. It also depends on how much material is there. Different diameter rotors of the same material and the same core thickness (talking about the shaft the magnet is glued to, and, of course, two pole magnets) are going to have different strength readings even if they are the same material saturated to the same percentage.

Might still be worth the money if you have rotors at 80% and they get them up to 98%. Guys racing oval pan cars obsess over 2-4%.

[kufman]

From what I can tell, it is Gauss or milli-Tesla. 1.4T would be near the upper limit for Nd2Fe14B material. The real upper limit is 2T which is where the steel used in the zapping rig will fall apart, in a magnetic sense.

Oval guys always obsess about their motors. I could always tell when it was oval day at the indoor carpet track. All I heard all day long was, VVaaarroooommmm!! (motor dynos).