Joined February 2012
120 Photos and videos
pikvm spindle in walnut and silky oak. I still feel bad about the plastic utility box in the design. The pi could be in a solid but ventilated wooden layer at the bottom. I've already had occasion to use it on a multihomed nas that changed nic ids. #RaspberryPi
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second time a firmware update has stopped the samsung phone from wireless charging. Seems like something quality control could have noticed prior to rolling out a "security fix". I assume that is it as it stopped again just after an update :/
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Rebuilt the pan element of Terry the #ros robot. Bearings with locking collars in mounts separated by a good distance for stability. The slip ring has moved below the top layer of the robot now as the 12mm OD shaft fits nicely through the 1/2 inch hole below. #microROS ctl p/t!
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Wera quarter inch drive tool tray. This holds one of the large kits plus deep sockets and some other drivers I had. 18mm walnut tray on little rubber feet. I considered laying down the deep sockets for minimum z height. Quick & easy access to the tools! @weratoolsuk
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Ben Martin retweeted
16 Apr 2023
減速機の中が見えるバージョン作りました
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A small palette of Wera stubby drivers. The bit driver at the back sort of fits in there for driving other patterns.
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Wera T-Handle hex plus holder. The larger ones are fairly stable but the 2.5 wants a little hat to stop it from rotating when in place. Some HomeAssistant control panel love in green button form right next to them. Always nice to have a hound release button at hand.
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I'm not sure if using ROS2 or ROS 2 will make the porting any easier :o
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Those bright backgrounds at the verge... makes you need to be absolutely sure you really want to read it.
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Ben Martin retweeted
11 Jan 2023
We are still accepting submissions for our Call for Proposals. See our website or cfp.nluug.nl/ for more details. Topic suggestions: DevOps, networking, security, open standards, open technologies, system administration, software development. RT is appreciated!

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This looks like a great week tinkering on robot vision! Too far for Terry the ROS Humble bot to travel :(
Registrations for the #RoboticVision #SummerSchool are open! If you are a 1st year PhD/Master's student, or working in INDUSTRY but looking to upskill yourself in robotic vision, join us 6-11 Feb 2023 at the beach in #Kioloa! rvss.org.au/ @RoboticVisionSS
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#ros humble with octomap_server and a realsense camera. A quick first test where my arm enters the frame and moves upwards and then is removed again. Interesting to see the probability colouring and the decay that finally removes my old arm positions!
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I am now also up at @monkeyiq@fosstodon.org hopefully I can reconnect with some of the ROS folks over there.
Voxel Layer in #ros 2 humble now detecting 15 voxel levels of the local obstacles! Pumping the 720 stream through a 1 message per second filter makes it go. Also added the large message tweak for cyclonedds. Still no luck with svtl layer.
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Using the raw point cloud from the realsense d435 at 720p x 30 fps tends to overload things but I only saw that was the issue when I switched to 320 and a decimation filter. Best to keep full res and only forward one 720p frame per second for now.
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I am still publishing the voxel map which is resource hungry. But if you can, and like to see it at 1 fps it is lovely :) Works well for detecting road blocks as it doesn't need to be super fast.
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#ROS 2 humble with a local costmap and voxel grid for depth image. Voxels are slightly larger than the map resolution because they can slow things down quite a bit. Using cyclonedds for this test.
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After playing with getting the local costmap going in #ROS 2 humble I discovered the following. It might save some time for others who are trying to tweak config files still... github.com/ros-planning/navi…

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There is a local costmap with export RMW_IMPLEMENTATION=rmw_cyclonedds_cpp