Author Topic: DIY Grassmaster  (Read 218 times)

Graffen

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DIY Grassmaster
« on: December 31, 2017, 04:04:12 PM »
Hi all, I borrowed a Noch grassmaster but I think it's a bit hefty price wise.
I then saw the article by Luke Towan on how to build your own.
I didn't like to have to scurry around to find the hardware though ...
The electronics were all readily available, and I ordered all of it online.
A friend and I decided to build one each.
The housing then?
I would like the ability to alter it and change the cups and nozzles to suit various types of applications.
I designed it in CAD and made it as small as possible but still be easily assembled.





It has features I like, as the ability to run on both 12 volt thru a cable or with a 9 volt battery. All controlled with a three way switch.

The prototype is currently being 3D printed. It will be used to see if any alterations has to be done.

ACL1504

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Re: DIY Grassmaster
« Reply #1 on: December 31, 2017, 05:50:33 PM »
Graffen,

This will be interesting to follow.

Tom ;D
If you hate plan A, you are certainly not going to like plan B!

Tom Langford
telsr1@aol.com

Graffen

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Re: DIY Grassmaster
« Reply #2 on: January 03, 2018, 06:33:00 PM »
Hi again!
It's assembled now.

First test of the home-built grassmaster with a 9 volt battery for power and Woodland scenics short grass.

Tomorrow I will test with the 12 volt trafo and longer grass.
I was surprised how strong the static field is. The hair on my hand stands straight up when I get close ...
The grass gets really dense and stands up really nice.
This project gives a good result.
The cost was really affordable. When summarizing every component and the material for the 3D print, it cost me roughly $50!
Under half of what equal products on the market costs with the same specs.

ACL1504

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Re: DIY Grassmaster
« Reply #3 on: January 03, 2018, 07:45:59 PM »
Graffen,

You did a fantastic job on the 3D grass master. Since you saved about $50.00 bucks on the build. How much time do you think you used for the planning, computor designing and finally 3d printing.

In other words, what is your time worth.

I see other components, what was the final cost when adding these other items in on the build?

Not being critical, just curious is all.

Tom ;D
If you hate plan A, you are certainly not going to like plan B!

Tom Langford
telsr1@aol.com

Graffen

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Re: DIY Grassmaster
« Reply #4 on: January 04, 2018, 05:14:55 PM »
The price includes all items needed. Including the plastic cost...
I spent roughly 4-5 hours designing it while in front of the TV.. most time was spent measuring the parts that was to fit inside it.
I'm quite well versed with CAD program design. ;)
The 3D printing time can't be included as I did other stuff while it printed the parts.
That's the beauty of 3D printing, to have a robot making stuff for you while doing more interesting stuff...  :D

deemery

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Re: DIY Grassmaster
« Reply #5 on: January 04, 2018, 05:42:14 PM »
... to have a robot making stuff for you while doing more interesting stuff...  :D
I'm waiting for the robot that lays track and does soldering  :D ;D  I'll be happy to scratchbuild a house for it.

dave
Modeling the Northeast in the 1890s - because the little voices told me to

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Re: DIY Grassmaster
« Reply #6 on: January 04, 2018, 08:14:55 PM »
Graffen


Interesting project.  Thanks for sharing it with us.




John Siekirk
Superior & Seattle Railroad

Slim Jerkins

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Re: DIY Grassmaster
« Reply #7 on: January 11, 2018, 10:14:23 AM »
The price includes all items needed. Including the plastic cost...
I spent roughly 4-5 hours designing it while in front of the TV.. most time was spent measuring the parts that was to fit inside it.
I'm quite well versed with CAD program design. ;)
The 3D printing time can't be included as I did other stuff while it printed the parts.
That's the beauty of 3D printing, to have a robot making stuff for you while doing more interesting stuff...  :D


I made a DIY "grassmaster" as well. It's one of those sour cream container / plastic tube handle jobs. Most expensive component was the $12 110V ionizer (mine plugs into the wall). I really need a smaller version though and I think I'll use the 3-D printer for that.


I use Autodesk Inventor for 3-D design at work. Like any anything computer-related there can be some frustrating hours spent working with the software. But the same can be said working with our hobbies too sometimes. 3-D design can be enjoyable. It's like a puzzle and there's more than one way to go about making an object.


-slim

 

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