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396 results for “drfootleg”
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Finally success with the #ERCFv3
A #3dprinted trio of the tiny owls by McGybeer in 4 colours. 199 layers and the first 98 printed without any problems before a colour change was halted due to filament not quite fully unloading and preventing the selector moving. Quickly resolved and a few layers later a filament clog paused the job again. This time the reason was the nozzle had come slightly unscrewed. Once that was cleared up the rest of the print completed with no manual interventions needed! -
I have spent the evening tuning the flushing volumes to determine the minimum purge amounts needed to ensure clean colours. Here you can see the purge block transition from black to green (it gradually changes over several lines), and from green to red (happens more abruptly over just a few lines). I think I am nearly ready to attempt another full print to see it it can complete without interventions. #3dprinting #ERCFv3
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Another big step forwards today. I learned how to configure the ERCF configuration to detect when the selector is blocked from moving by using the stallguard feature of the TMC2209 stepper driver. Now when filament fails to completely unload the selector detects the stall of the motor and the software attempts a recovery. It unloads the filament a little more then tries a home to the end stop. If this fails it pauses rather than loading the wrong colours as and printing on. #ERCFv3
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It finally completed at 1:30AM. Many filament unload fails resulting in some layers being printed in the wrong colours as the selector failed to move due to filament not being retracted enough for it to clear the selector. Need to work on a solution for that, and detection so it can pause if it occurs. #ERCFv3 #3dprinting
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After a break to play with my Christmas zigbee gadgets I am back to attempting to tame the ERCF v3 with a 4 colour 3Dbenchy. It has got further than ever before, but has still needed regular interventions. #ERCFv3
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Filament blocks fully assembled and contact surfaces filed to ensure none of these stick down. A lot of work but as I learned with the v2 build, getting these moving cleanly is critical to successful operation. #ERCFv3
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Building my ERCFv3 today, using my CrowView with Pi5 laptop to view the build manual. #3dprinting #ERCFv3 #MakerMonday <- well #MakerXmas all week really
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Arrived in the city for the #SMRRF this weekend. Manchester weather doesn’t disappoint!
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Steady progress on the Deathracer build while I’ve been unwell these past 3 days. I’m at the stage of working out where I used longer screws than I should have as I run out of them but have loads of shorter ones left from the kit (which has no instructions). Also reprinting several parts where the holes were too large for screw threads to bite in them. #3dprinting #SMRRF
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Deathracer build was going well until on the 4th axle (of 4) the drill bit bound so tightly in the 50mm deep hole I had to drill out that it snapped when I tried to reverse drive it back out. So now I need to reprint that part and try again. #smrrf #3dprinting
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It appears I am now building a #DeathRacer for #SMRRF (assuming the parts kit arrives in time!)
https://www.youtube.com/playlist?list=PLMo89umUV98rdeB4_8urxc9-Vu1SL9mGF -
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@piofthings This is the Voron R0.2 kit from http://siboor.com who I met at the #SMRRF in December. I am really impressed with the kit for the money. Came with all 3D printed parts included and the print quality is excellent.
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@andypiper I’ve been driving past Oxford for years on my way from Cambridge to various caving trips, but this was the first time I’ve been able to spend time in the city. Some beautiful buildings. We had two amazing days at #SMRRF
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Nat, Rob and I have had an absolute blast these past 2 days at #SMRRF Today was a little less busy so I found lots of time to speak to other exhibitors and buy cool stuff.
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Took a lovely peaceful 30 minute walk around Oxford city centre before the start of day 2 at #SMRRF
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Great first day at the #SMRRF in Oxford, UK today. This was our stand surrounded by professional content creators and companies.
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What an excellent day! Morning spent running my monthly kids coding session at local library. Several new faces and all enjoyed their experience. Then straight over to Cambridge for the #camjam #RaspberryPi birthday party jam. Met loads of good friends and talked to many interesting people. So busy I didn’t take any pictures all day.
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Sat on a sofa in a Yorkshire caving hut tonight after a couple of pints in the pub at the end of day 1 of a cave surveying meetup. Half the room are messing with cave survey data on their laptops. The room is alive with chatter. Someone is playing acoustic guitar. Life doesn't get much better than this. #HappyPlace #Goodtimes
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A tough 24 hours in world politics. Rather than make them listen to the news on the school run, I asked my daughter to pick some music. So we listened to Dwarfish Rock all the way to school. A new genre for me, but it lifted all our moods! #DiggyDiggyHole
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Until today I thought I'd never made it into the pages of the #RaspberryPi Hackspace magazine. But I picked up issue 80 from my partially read magazines pile at lunchtime today and found a very nice mention of my talk 'How to Map Caves' in the article on #emfcamp2024 So I did make it into the mag before it ended. 😀
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My #emfcamp2024 talk 'How to map caves' is now online. So if you were wondering how to map a cave, here you go: https://www.youtube.com/watch?v=9bZRCVU9mH4 #EMFCamp #caving #caves #Mapping #map
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Not content with this success, I went on to write a pico C++ driver for the lsm6ds3 accelerometer using the pimoroni-i2c library as there did not appear to be any C++ drivers in the wild for this on #rpipico
This along with the touch screen C++ driver I converted from lvgl to the pimoroni-pico graphics will be published in my #presto examples once I have fully implemented the driver and written some simple boilerplate examples.
#pimoroni #pico #RaspberryPi -
Picture showing the internals of my 12x12 Neotrellis matrix with sound. Running #circuitpython the battleships game on it is one of my most popular projects with families and kids at public outreach events. #circuitpythonday2024
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One of my earliest #robots (and still regularly used at pubic outreach events). Based on the #Zumo chassis from #Pololu, with Li-Ion batteries in the base, and a #RaspberryPi Zero for brains. The motor driver board is the Picon Zero from #4tronix
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My Neotrellis light and sound board hardware is complete! A 12 x 12 grid of RGB LED illuminated push buttons and built in amp and speakers. Running #CircuitPython on a #Tiny2040 board from #Pimoroni #3Dprinted case designed by me. Powered via the USB-C socket. #SoundOn!
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Printing the first real parts I designed myself in multi colour on the #ERCFv3
#3dprinting