Search found 150 matches

by Raess
Tue Mar 27, 2018 1:04 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

A quick Drive system/wheel assembly.
IMG_2597.jpg


Things are coming together quite nicely.
Here is a small video on the drive system in action with wheel:
https://www.youtube.com/watch?v=tMZNToO2TvU
by Raess
Tue Mar 27, 2018 10:49 am
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Thanks. But still a very long way ahead. :)

The display is driven buy a Nvidia Jetson TX2.
More info here: https://www.nvidia.com/en-us/autonomous ... s-modules/


You can see the display in action here
https://www.youtube.com/watch?v=TBCq1r_XWo4

Cheers
by Raess
Mon Mar 26, 2018 9:43 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Today I received the touchscreen for the robot. Did a quick and dirty prototype of the mouting bracket and printed it. Here is how how it looks mounted on the robot. (Did not have 90-degree HDMI connectors at home, thats why is lifted when powered on). IMG_2572.jpg IMG_2563.jpg Read full post here: ...
by Raess
Sat Mar 24, 2018 9:28 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

3D printed wheels, Drive shaft nav and wheel nav. Everything fits perfect. 8mm Drive shaft in Silver steel, Ultra silent F688ZZ bearings, 8mm clamping ring in alu. Clamping element 8 x 15. The wheel nav is only a quick and dirty concept, need to improve the looks so it follow the same lines as the w...
by Raess
Sat Mar 24, 2018 9:19 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

My printer had no tasks in the pipeline for tonight, So I 3D printed the mounting bracket I designed a couple of days ago. The mount was 3D printed with PrimaSelect PETG, 3 shells and 10% infill. Due to the different surfaces I needed to print with support. The mount came out great and everything fi...
by Raess
Sat Mar 24, 2018 12:43 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Tonight Part 10 was finished, the second wheel for the Valify Robot lawnmower. The print took around 44h and conusmed approximately 550grams of PrimaSelect PETG filament. IMG_2457.JPG I just order a tachometer so I can measure the RPM easier. For low RPM the motors are working quite good. No problem...
by Raess
Thu Mar 22, 2018 7:38 am
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Tested to control the motor with VESC over ROS and Differential drive, ROS controller and keyboard_teleop.
https://www.youtube.com/watch?v=f4ZobjZOBfo

Lets try both motors tonight.

Read full post here: http://valify.se/2018/03/21/differentia ... -ros-vesc/
by Raess
Tue Mar 20, 2018 3:52 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Jetson TX2 mount and SSD mount 3D printed.
IMG_2410.jpg
by Raess
Tue Mar 20, 2018 3:50 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

by Raess
Mon Mar 19, 2018 5:07 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Approximately 700mm ;-)
by Raess
Mon Mar 19, 2018 1:58 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Today I received the new BLDC motors & the VESC controllers for the Valify robot lawnmower. Here is some pictures from test mounting on the prototype motor brackets: IMG_2373.jpg IMG_2379.jpg IMG_2376.jpg Also continued with CNC milling of parts for the Drive system: Resized_20180319_141948.jpeg...
by Raess
Sun Mar 18, 2018 9:02 am
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Wheel print finished tonight. a 44 hours print. Looks Good overall. Printed with 3 shells 15% infill at 240C and 85C. It consumed 550grams of primaselect filament and the wheel feels unbreakable

F2C74438-2B94-454A-89BE-0A4D101D3BDF.jpeg


55C708FB-3ECE-4296-B15D-DFAFD32F2926.jpeg
by Raess
Sat Mar 17, 2018 12:59 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Your always welcome! Thanks for the feedback jon_bondy. The front wheels will have a dim at 60-70mm, but will be designed more like a "ball". Ball wheels tent not to dig in. I will share the design when they are ready from the concept stage.

Cheers.
by Raess
Sat Mar 17, 2018 12:43 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Thanks DeX! Shafts are now ready. Splitting the shaft from 500mm to two 240mm. Grind top and bottom and bearings fits like a glove. IMG_2330.jpg Test assembly with 3D printed motor brackets and wheel hub. Everything fits perfect! I will add some extra mountings for the the vertical support beam. Oth...
by Raess
Sat Mar 17, 2018 12:17 am
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

A nice video on the CNC milling for the first part for the drive system:
https://www.youtube.com/watch?v=N8MIpB3ZfS8&t=162s
by Raess
Fri Mar 16, 2018 3:13 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

CNC milling first part for the drive system! Looking sweet right?
5B4E9F93-6BC4-4B2A-99D9-073E86CCA431.jpeg

EBF0352E-1DF8-472F-99B1-C4234DF1EF66.jpeg
by Raess
Fri Mar 16, 2018 9:05 am
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Test mounting prototype bracket
Read full post here: valify.se/2018/03/16/3d-printing-prototype-motor-brackets/
IMG_2273.jpg
by Raess
Fri Mar 16, 2018 6:37 am
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Part 8 is now completed:
IMG_2227.jpg


Motors brackets prototype before CNC:
IMG_2242.jpg
by Raess
Thu Mar 15, 2018 10:30 am
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Part 8 will finish in a couple of hours :) In the meantime I am doing the final touches of the Drive-system before it is sent of for CNC milling.
All the parts for the drive-system is on the way and arriving in the coming week.
drive-system.jpeg
by Raess
Mon Mar 12, 2018 9:14 pm
Forum: Others
Topic: Project robot lawnmower
Replies: 78
Views: 19293

Re: Project robot lawnmower

Part 7 Fresh From The Printer
IMG_2160.jpg

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