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Student design project

#1

H

harrypotter

Hello I am a university student working on my major project aiming to design a less straining and more convenient cordless electric mower particularly in manoeuvring but as well as storing and emptying grass - with the aim of making cutting the lawn a more enjoyable task. If anyone could provide a response to any of the questions below that would be greatly appreciated.


Do you have any thoughts on the brief?
where do you store your mower?
How do you get it out of storage? and transport it to lawn?
What are your thoughts on lawnmowers with swivel wheels? I have a concept which allow the same function but without the impracticalities these have
In terms of handle height adjustment and cutting height adjustment which mechanisms do you prefer?
Are there parts of your garden which are more difficult to cut than others
I have considered moving the battery central of two large back wheels to minimise pushing force - are there any problems that might occur with this?
what would you look for in a mower if buying one now? particularly elderly users?
Do cordless mower owners use the handle often provided to pick it up? Or is it too heavy?
what motions do you find most straining?
How do people empty the grass? Does anyone bag their grass? would it be useful if there was a feature to help you do so?


#2

Boobala

Boobala

Perhaps we are all looking at thing's the wrong way, ... folks keep on trying to "build a better mousetrap " a better design of mower with the characteristics to please EVERYBODY, why not divert that energy, into a new concept ! why not develop a new grass ( turf) that has eye pleasing qualities, reaches a predetermined height, then only requires minor trimming, need's little, if any fertilization, and pest/rodent controls, stay's "green" ALL YEAR, or maybe we could even find a nice shade of "blue" sound's un-imaginable ?? ... Hell, we put a man on the moon, put a fancy roadster in deep space orbit, we clone animals, etc. etc., of course a lot of job's would be lost, but society is headed to Hell in a handbag anyway ...

teka-teki.jpg


#3

P

panabiker

Cutting lawn is rarely an enjoyable task if you have to do it every week. If you want to make some improvement, look at the existing robotic (cordless) mowers and see what their shortcomings are and make them better and maybe cheaper.

Here are the existing examples,
http://groomandstyle.com/top-5-best-robot-lawn-mower-reviews/


#4

1

1 Lucky Texan

lighter-weight yet durable decks

better 'lift'/vacuum

some way to improve cut within Federal restrictions on rpm/blade tip speed


#5

D

Darryl G

Developing longer-lived batteries is the key. The decline of battery capacity over time and the replacement cost of them are the biggest problems with battery-powered electric machines of all types. You can engineer the machine to perfection, but if the power source it relies on becomes ineffective over time to the point that it becomes unusable for the intended purpose/duration what good is it?


#6

B

bertsmobile1

1 Lucky Texan said:
lighter-weight yet durable decks

better 'lift'/vacuum

some way to improve cut within Federal restrictions on rpm/blade tip speed
Click to expand...

Lucky, go to Canada and buy an imported Victa with swing back blades on a carrier disc.
They can not be sold in the USA because the Vortex was too good compared to locally made machines so the government protected the local manufacturing by declairing swing back blades a safety hazard and banned the sale of the Vortex which was also too quite so needed to have a flashing light on it so you knew it was running, obviously your government believes Americans are the most stupid people on the planet as the same mower sold all over Europe & Africa.

A thin bar blade spinning under the deck can not create the air flow required to lift the grass when limited to 3600 rpm.
That is why we use 4 blades on a disc. Honda also make a swing back blade mowers which also give a perfect cut which they sell here in Europe & Canada but not in the USA.
We get a lot of US push mowers down here and the quality of cut on all of them is trash when compared to the swing back blades on a carrier disc.
The single bar blade also has troubles shifting the grass for bagging and mulching with a single bar blade is a joke.


As for "Mr Potter", who must be a millenial because the best he can do for research is type on his smart phone.
Get off your bum and talk to some local mowing companies.
Better still offer to work for some of them for free to do your research.
Nothing like first hand experience, that is REAL research.
If I caught one of my students doing this when I was teaching it would be an automatic fail.

Note what I said about governments using "Safety & Pollution" regulations to protect local industry.
There is a lot more to building a better mouse trap than actually catching more mice.


#7

D

Darryl G

bertsmobile1 said:
Lucky, go to Canada and buy an imported Victa with swing back blades on a carrier disc.
They can not be sold in the USA because the Vortex was too good compared to locally made machines so the government protected the local manufacturing by declairing swing back blades a safety hazard and banned the sale of the Vortex which was also too quite so needed to have a flashing light on it so you knew it was running, obviously your government believes Americans are the most stupid people on the planet as the same mower sold all over Europe & Africa.

A thin bar blade spinning under the deck can not create the air flow required to lift the grass when limited to 3600 rpm.
That is why we use 4 blades on a disc. Honda also make a swing back blade mowers which also give a perfect cut which they sell here in Europe & Canada but not in the USA.
We get a lot of US push mowers down here and the quality of cut on all of them is trash when compared to the swing back blades on a carrier disc.
The single bar blade also has troubles shifting the grass for bagging and mulching with a single bar blade is a joke.


As for Darryl, who must be a millenial because the best he can do for research is type on his smart phone.
Get off your bum and talk to some local mowing companies.
Better still offer to work for some of them for free to do your research.
Nothing like first hand experience, that is REAL research.
If I caught one of my students doing this when I was teaching it would be an automatic fail.

Note what I said about governments using "Safety & Pollution" regulations to protect local industry.
There is a lot more to building a better mouse trap than actually catching more mice.
Click to expand...

LOL, wake up on the wrong side of the bed or something? FYI, I'm a 55 years old and not only do I talk to local mowing companies all of the time, I am one. I don't appreciate your condescending hostile tone. Besides, working for a business for free is illegal where I am :p I've been on this site for a while now and you're the first person who has been an *** to me. Congratulations!


#8

B

bertsmobile1

Darryl G said:
LOL, wake up on the wrong side of the bed or something? FYI, I'm a 55 years old and not only do I talk to local mowing companies all of the time, I am one. I don't appreciate your condescending hostile tone. Besides, working for a business for free is illegal where I am :p I've been on this site for a while now and you're the first person who has been an *** to me. Congratulations!
Click to expand...

Sorry Daryl, put the wrong name in there.
Mistake should have been obvious as you are not a student.
I have corrected my reply.


#9

D

Darryl G

Oh, I see. Apology accepted. I was a little confused and having a hard time understanding your issue with me, but that's not unusual for me, lol. I usually just put this link up in situations like this...

https://www.youtube.com/watch?v=YmMRaUX-QSM


#10

MowerMike

MowerMike

:hug:


#11

M

Muhammad

Valentine's day! :laughing:


#12

Boobala

Boobala

Muhammad said:
Valentine's day! :laughing:
Click to expand...



:confused2:...:confused2:..:confused2:...:thumbsup:..:laughing:.:laughing:


#13

Ronno6

Ronno6

bertsmobile1 said:
As for "Mr Potter", who must be a millenial because the best he can do for research is type on his smart phone.
Get off your bum and talk to some local mowing companies.
Better still offer to work for some of them for free to do your research.
Nothing like first hand experience, that is REAL research.
If I caught one of my students doing this when I was teaching it would be an automatic fail.
Click to expand...

Just a note on Bert's theme.......aaaaaaaaa1.jpg


#14

willys55

willys55

its amazing how much dialog can be found after a spam post.......there is no way this guy (OP) is legit


#15

B

bertsmobile1

Student in the UK going on line in the USA to get free research for a paper, sounds about right actually.
The silly old prof would never bother checking another country would they ( gees I am smart ).
Could also be a marketing or advertising clot .

In any case, not a viscious spammer as they post in every section and these 2 have only posted in the battery power section.


#16

D

dennisRt

Participating in a student design project is not only an opportunity to express creativity, but also valuable experience for developing research skills. In this project we apply theoretical knowledge in practice, which is important for my dissertation. The process of practical design work and analysis of the results in the project echoes the research methodology required for writing a quality dissertation. This is a unique opportunity to combine theory and practice, which will enrich my education and help me achieve better results.


#17

7394

7394

Thread is from 2018, in case ya didn't notice.


#18

EatPreyMow

EatPreyMow

Well I hope he finished his project, lol.

Battery technology is the hurdle to electric riding mowers. Vehicle batteries last over a decade because they have liquid thermal management but that's prohibitively expensive in a riding mower, and at the price range of battery powered mowers one can buy ICE mowers that will last well over 20 years with minimal maintenance.

I believe we'll get there but it won't be with Li-ion batteries.


#19

EatPreyMow

EatPreyMow

america12 said:
You're talking nonsense! Whatever the battery is, after two years it loses its properties.
Click to expand...
You seem nice.


#20

B

bertsmobile1

america12 said:
You're talking nonsense! Whatever the battery is, after two years it loses its properties.
Click to expand...
Nothing like the truth
we made electric fork lift batteries that were good for 20+ years
Yes after 5 or so years the storage capacity started to drop off but 20 year down the track they still had 20 hours of run time per charge
Now on a fork lift, having a 3 ton battery is an advantage because it also doubles as a counter weight
Not quite the same as on a riding mower.
Spiral cell Pb batteries can power most smaller E things quite well .
I use them to replace the deep cells used in golf carts & they work a treat .
It is all about available surface area & spiral cell battery have massive pate surface areas .


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