GoldenMotor.com Forum
General Category => General Discussions => Topic started by: gamewinner on June 02, 2010, 08:51:36 AM
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Hi,
I bought a Magic Pie motor on 21 May and I have no news about the delivery !
I contacted the sales by mail but I have no answer.
Can someone of sales can contact me by MP so I can give him the Paypal Operation ID in order to have some infos of my command ?
Thanks
Kreshnik
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Hi,
I bought a Magic Pie motor on 21 May and I have no news about the delivery !
I contacted the sales by mail but I have no answer.
Can someone of sales can contact me by MP so I can give him the Paypal Operation ID in order to have some infos of my command ?
Thanks
Kreshnik
Who did you buy it from? Do you have a receipt or invoice number?
Gary
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I bought it from goldenmotor website.
Tom contacted me : the kit is not yet shipped.
I am waiting :'(
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I bought it from goldenmotor website.
Tom contacted me : the kit is not yet shipped.
I am waiting :'(
Oh that was that big box at the door was. They must of sent it to me by mistake.
Just kidding. ;D
Hang in there buddy the Pie will be served. I know these hunger pains, well. Good chance you get the Pie 1.01 is worth the wait.
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Hi,
It's me again. Tom don't answer to my e-mails anymore !
How much does it takes normally to recieve a command from goldenmotor because I'm waiting for 3 weeks and I think the kit is not alseady shipped ?
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Nobody can answer me !
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Nobody can answer me !
Unfortunatly GM China is the busiest place on the planet. Some shipping delays are as long as a month right now. Hang in there it will come. It is difficult for Tom to reply to all the emails he receives as he is the shipper and tech support guy and is currently overwhelmed by the busy season. I wish there was more staff in China to assist him, but that is out of my hands.
Gary
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Nobody can answer me !
We still hear you. Your calls will not be forgotten and left to fade into the static background noise of the abysses.
It is a bad feeling waiting so long. The only thing that will cheer you up is a good Pie hey.
If nothing happens soon you bump this along till something happens.
It will happen, and I hope for you soon.
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I ordered my kit on May 29th and am still waiting too :( Hopefully it'll come this week.
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Hello everybody.
Just a little message to say that I received today my Magic Pie Kit ;)
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Just a little message to say that I received today my Magic Pie Kit ;)
That's good news Kreshnik.(http://www.arhservices.co.uk/GoldenMotor/emoticons/6_small.GIF)
Now you just have to fit it and start enjoying it, and I'm sure you'll agree it was well worth waiting for.
(http://www.arhservices.co.uk/GoldenMotor/emoticons/7_small.GIF)
It would be nice to see some pictures when it's complete.
Alan
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I'm working on it. I promise to put some pictures when it's done ;)
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Great news
Just some hints.
Always assume this gear all works and install it as such. Skip tests.
This is not a dress rehearsal this is the real thing.
Take your time make sure.
>>>
All the connections correct are secured and can not move.
Derailer adjusted and so it cant rub against the hub wall gear face.
Battery attached rpoperly to the bike.
Charge battery.
Rear and front Axel bolts done up tight, all your might. Not flare the dropouts tight.
Goose neck and handle bars and seat posts are tight and other bolts n nuts. Dont put too much tension on the stem bolt.
Throttle grub screw tightened properly.
Brakes calipers, switches, (PAS) installed securely and adjusted
Torque arm in place and secured.
Brakes adjusted to centre and rim true.
Pump the tires to max can avoid rim damage on bumps. Maybe a little max under, not over.
Wear a helmet and
Take your time around people. I like to show off how slow it can go. These bikes can travel as slow as a snail. with delicate throttle control.
Good luck.
Recheck all the above.
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Thank you for your help ;)
- I mounted the MP with the connectors
- I'm waiting for the Torque Arm
- When I tested the battery (no GM Battery) I can see 0V ! I've to test with another one.
- The battery will be in my backpack
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I have a question : Can I use my ebike (Magic Pie) without the battery ? Is it dangerous for the controler ?
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The controller is okay if the pedaling speed is not too fast. Below 50kph is safe.
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OK thank you ;)
I have another question : Actually I'm using a 36V battery. If a change for a 48V will I obtain more torque ?
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I finally finished mounting my MP Kit on my bike. You can see here some pictures ;)
(http://img694.imageshack.us/img694/1597/imag0352s.th.jpg) (http://img694.imageshack.us/i/imag0352s.jpg/) (http://img227.imageshack.us/img227/9577/imag0353.th.jpg) (http://img227.imageshack.us/i/imag0353.jpg/) (http://img580.imageshack.us/img580/7250/imag0356l.th.jpg) (http://img580.imageshack.us/i/imag0356l.jpg/) (http://img16.imageshack.us/img16/3899/imag0355y.th.jpg) (http://img16.imageshack.us/i/imag0355y.jpg/) (http://img685.imageshack.us/img685/5657/imag0354.th.jpg) (http://img685.imageshack.us/i/imag0354.jpg/)
Video : http://img707.imageshack.us/img707/8503/video0357.mp4
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I have another question : Actually I'm using a 36V battery. If a change for a 48V will I obtain more torque ?
I've just done a quick stall test comparison between 24 and 48 Volts using 14Ah SLA batteries on my Magic Pie.
With a digital luggage weighing device attached by a strong piece of cord so that is is pulling right on the outer edge of the tyre (Maximum Diameter on a 26 x 2.35 tyre) I get a reading of around 31lbs/14kg @ 24V and 32lbs/14.5kgs @ 48V.
My spreadsheet calculates this to be just over 45Nm of torque @ 24V.
The increase in torque will be very slight. Mine only increased by ~3.5% when I doubled the voltage but the top speed increased from 15 to 25 mph!
Alan
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Use the batteries in the backpack is a nice CG control solution for off road use! :D
We need to create some type of quick release power cable for safety :D
Or even an special accessory to put the standard GM batteries at the back. A BattPack ::)
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OK thank you ;)
I have another question : Actually I'm using a 36V battery. If a change for a 48V will I obtain more torque ?
Ive bumped heads with a few over at ES with this question.
Sure you get more torque. A you will feels it too, its not off the mark torque. The performance charts suggest ineffieciencies at 27nM loads at 48v. the 36v wheel actually pulls more nM at 36v than at 48v.
However.
Often power and torque are confused. Sure you get more torque at 48v in an area that you don't use yet. This will be much felt at the higher speeds you can not experience at 36v.
Looking at the performance curves on the GM site with a 26nM the 36v MP is giving about 180 rpm and at 26nM @ 48v it is giving 280 rpm.
The 48v MP lose over 80 rpm and the 36v MP will loose 75RPM under the test load, this maybe showing either the power limitation and added losses more volts oputts into the iron core of the formers..
In the winding all these volts can get pushed into torque under a high load. From 24v to 48v you can get an added 6nM at take offs..
Usually the motor can not put out much more torque than the windings can handle but we humans can convert torque to speed or vice versa. The new stuff I am learning here is Rider experienced torque to motor output torque. They are 2 different things to consider.
Just because one put gears on a motor doesnt mean the motor will give more torque, The wheel will and loose RPM doing this and nM reamains similar.
So I state, yes more volts gives more torque, a lot more torque at 45kph than a 36v config will give. ;) You feel the power more when it doesnt slow at 35kph and keeps going faster.
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Thank you everybody for your detailed explainations ;)
I think I'll keep my battery 36V for a moment.
I make some new pictures
Backpack with battery (the backpack has back protection) :
(http://img143.imageshack.us/img143/1023/imag0360n.th.jpg) (http://img143.imageshack.us/i/imag0360n.jpg/)
(http://img297.imageshack.us/img297/5623/imag0362e.th.jpg) (http://img297.imageshack.us/i/imag0362e.jpg/)
I also installed the torque arm :
(http://img248.imageshack.us/img248/6293/imag0359.th.jpg) (http://img248.imageshack.us/i/imag0359.jpg/)
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Hi,
I've a question : I decided to put the battery in the backpack because I wanted to drive my ebike also without the battery. But I saw that even when the battery in not connected to the MP, the MP is a little bit hard to turn and it generates energy (7-8V).
Is this normal ? Is it possible to disable that because it's really hard to drive without the battery ?
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Kreshnik,
Unfortunately it is not possible to disable this generating effect.
The 7-8 Volts you mention will be more like 70-80 Volts at a high enough speed. I was concerned about damaging the controller, but according to Yao, "The controller is okay if the pedaling speed is not too fast. Below 50kph is safe."
I've just been looking at your pictures, and have doubts as to whether the fixing of the torque arm linkage is going to be rigid enough to prevent the torque arm from moving. It's difficult to say for sure, but it looks like you might be able to get a much better fixing by removing both link rods and turning the torque arm 180 degrees and securing it directly to the frame using the lower calliper fixing bolt. The small hole in the torque arm may need to be enlarged and/or filed slightly to line up exactly with the calliper fixing, and a slightly longer bolt may be required if there is not enough thread on the existing bolt.
This is just a suggestion, and is not in any way a criticism of your work. ;)
Alan
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Howdy,
Alan I agree, also surely not critising Kreshnik's work! After all, Kreshnik[gamewinner] has taken the time and effort to fit a torque arm for added safety.
Funny, my frame is very similar and I ended up filing the axle hole out of a thick peice of steel and bolting the plate to my brake caliper holes. Tough as.
I did this on both sides, so mine isn't really a torque 'arm' but more of a torque plate. I'll post some pics up sometime this week with some video I made of a new install.
Kreshnik, as Alan suggested, turn the axle fitment around and try to install to your caliper bolt hole. This will eliminate the probability that the arm would spin the bolt that connects to your frame arm, rendering the torque arm useless.
If you really want some peace of mind, double up like I did :) nice work on the install btw I like the pack idea!! :P
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Thank you for your help
You have also guest my future question ;) because I was not really sure of my Torque Arm ;)
Do you mind putting the TARM in this way (see picture) ?
(http://img199.imageshack.us/img199/9325/imag0359bis.jpg) (http://img199.imageshack.us/i/imag0359bis.jpg/)
Uploaded with ImageShack.us (http://imageshack.us)
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Do you mind putting the TARM in this way (see picture) ?
(http://img199.imageshack.us/img199/9325/imag0359bis.jpg) (http://img199.imageshack.us/i/imag0359bis.jpg/)
Hey champ
Yup that's the ticket I have similiar on my ride. Really it would be ideal if you made a plate up to fit that whole area.
Here's mine: [haha still need 2 paint them]
Just finishing up the bike now, I'll post full pics throughout the week.
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I see better now. I'll try to put mine in that way ;)
Thanks
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hi there,
I have a big problem in my bike : the Magic Pie axis moves laterally a little bit and sometimes it touches the fork. It's getting worst. I don't know what to do.
I think it's the bearings.
Do you have an idea ?
Here a picture :
(http://img804.imageshack.us/img804/1631/pagicpie.th.png) (http://img804.imageshack.us/i/pagicpie.png/)
Uploaded with ImageShack.us (http://imageshack.us)
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OH man that's too bad! I had something like that happen to my scooter and now it vibrates and is less efficient... :(
Hey guys, I want to do that safety thing with the TARMS too - where do I find those things? Do I have to find some metal and drill it and bend it like what you seem to have done in your pictures? :o
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Kreshnik,
Try moving the tyre sideways by hand and see if the hub, rim and tyre move as one, or if the movement is just from the rim and tyre.
It sounds like it could be excessive lateral rim movement due to loose spokes, in which case you will need to tighten them up a bit.
If this is the problem, try and tighten the spokes evenly, and your wheel should remain reasonably true.
Check out this post (http://goldenmotor.com/SMF/index.php?topic=1659.0) regarding loose spokes.
Alan
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What Alan said.
And.
Get some fine machine oil into the nipples before you try to turn them.
And check your pie side housing bolts too.
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Hi everybody,
Thank you firs for your help.
I found why the type touches the fork : 2 days ago I tighten the spokes and I think I could do better.
However the loose is still here : the hub, rim and tyre move together. Some one have the same problem on their pie ?