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PiMowBot Case (Raspberry Pi based robotic lawn mower)

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Creation's quality: 5.0/5 (3 votes)
Evaluation of members on the printability, utility, level of detail, etc.
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  • 37 likes
  • 48 downloads

3D model description

The objects offered here are part of the new DIY Maker Robot Lawn Mower project called PiMowbot.

Please visit http://pimowbot.tgd-consulting.de for detailed build instructions and help with buying the components for your PiMowbot build.

The parts shown in green are revised and part of the new model. The print files of the new model always begin with the letter B.
Here are films that show the assembly schematically.

https://youtu.be/B9wEFmqp330
https://youtu.be/NdJ2QqNQJeI
https://youtu.be/_w_0Qi4AJC8
https://youtu.be/qVW84siqtSc
https://youtu.be/0HbFZzwYGDU

  • 3D file format: OBJ
  • Last update: 2021/04/29 at 16:40
  • Publication date: 2019/08/02 at 18:04

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36 comments

Built mine with the aliexpress 48ge520 and fit perfectly.

I get the information out of raspberry pi forum and not read it since days. Here is the alternative to the mentioned DC motor for the wheels and looks like the old one. (suggested by TGD itself)
48GE520

Okay, but at the 3D parts, there are at C-Level some motorgehäuse GR (C2-20-1) That seems to fit on a new model of motors. But which one fits? I can't see the measures, I looked only at the 3D-Viewer.

Agreed, seems like the reference doesnt exist anymore

Did you all find the right dc motors? I really have problems to find them. Othwerwise the constructed 3D parts will not match!?

on ebay germany eg item number 193655077864

Do you have a proper reference for Solar panel ? Can't find one with the right dimensions

Gehäuse für den 3D Drucker gegen Warping

And what did you mean by "Housing"?

@ Rudi,

ich habe keine Erfahrung mit PLA im Außenbereich.
Könnte aber funktionieren.

Sorry, I forgot to mention that the problem with the dimensions is now solved after I removed the Skirt.

Rudi

@Time: My printer has 300 x 300 mm. As Xsurfer has correctly guessed I had Skirt activated.
@XSurfer: What do you mean by "The body needs housing"? BTW, i plan to print the PiMowBot with PLA - I think, it should cope with our temperatures here in Germany.;-)

Thanks,

Rudi

@Rudi

You must check the Bed Settings in Cura.
Check the Skirt or Brim, deaktivate it.
I Print all with 20% infill with petg.
The Body need houses, warping!

Hi Rudi,
the problem is not clear to me. The biggest parts are smaller than the volume of your printer, hence they shouldn't be too big to slice them.
How big is the volume of your printer?

So far I made good experiences with PLA. It not only depends on PLA. Other important factors are the infill and wall thickness for example.
In my opinion, with the temperatures you mentioned, this could cause deformations but most likely not causing major problems.
The body parts and the new solar frame from version C you could print in alternative materials (more heat resistant) and to print the rest in PLA.

@XSURFER:
Can you tell me with which settings you printed the biggest parts? I have now a Mega X at home and when I try to print the upper and the bottom part Cura tells me that the object is too big to slice.

I assume I can circumvent this by using different settings for the printer but which ones do I have to use?

Thanks for your help,

Rudi

In which area do you live? I'd also like to try PLA but I am not sure about the max. temperatures for PLA. In summer we have temperatures of up to 50 degrees (celsius) in direct sun - would that pose a problem?

thanks that is what I though. As long as the motors dont run too hot it should be fine....If I melt any parts I can remake those areas with a more heat resistant filament on version 2.0.

in general PLA works fine. I printed with PLA myself, however PLA can be problematic with heavy sunlight and high temperatures (it might deform)

Ok thanks, I guess I will try to find someone to print the 2 big pieces for me....A second question do you think it would be fine to print with PLA?

hello tom
nice to hear from you
we tried to design the case also for small printers, but unfortunately this is not possible at the moment.

Any progress on a smaller printer version? I am limited to 220 by 220 on an ender3. Don't Speake german or use facebook so haven't been able to find anything in the forums about this.

New parts are marked with C
and are ready for download

hi when will be the new Parts to download here?

Petg ist UV beständigkeit hoch
Terperatur bis 70grad hält es stand

Der mower ist noch im Aufbau.

Thanks for your comment, however this leads me to another question. Since I do not have a 3D-printer yet, I am not aware of the filament properties.
So after a short research I read that PETG is not resistent to UV light and also does not support higher temperatures as good as ABS or HIPS.
Is your PiMowBot already in use? Do you have any practical experiences with it in regard to the PETG used? Do you have higher temperatures in your area?

I used PETG. Problem is warping from the Case, you need a good Printplate FR4 search at google

Thanks a lot for your answer! Did you have any problems when printing? Did you have to do anything special? Which material did you use (ABS or HIPS)? I'd like to know about problems before buying the Mega X.

I printed everything with the Mega X.

Can you already tell when where will be the designs for smaller printers?
I currently don't have a 3D-printer and I'd like to know which one to buy.
Do you recommend a 3D-printer? I am thinking about the AnyCubic Mega X, but I am unsure if it is large enough (bed size 300 mm x 300 mm).

it is indeed planned to design the larger parts in such a way that they can be printed with smaller printers as well
but I can't say yet when that's the case.

Hello,
Thanks for the detailed pictures.
Possessing a printer with a bed of 230mm * 230mm there are 3 big pieces too big for me. Is a file suitable for small printers is planned?

The project is still at an early stage. At the moment you need a 300mm x 300mm printer to print the largest parts.
At a later stage a version of the case will be developed which can be printed with smaller printers.
The biggest part is 298mm long and 181,6mm wide and 276,9mm high.

May you provide biggest pieces sizing informations?
For small 3D printers, would it be possible to provide big body parts splitted design ?

I will create more pictures, also showing the technical details and how to assemble everything.
Basically the technical documentation is on the site: http://pimowrobot.tgd-consulting.de

are schematics how to wire everything up included in the files ?
any video of it ? this look very insteresting. might build one during the winter so i have one ready for spring :)


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