My homemade Depron CNC plotter and cutter Rolf R Bakke 2024-10-22 | My homemade Depron CNC plotter and cutter
Drone chasing 2 R/C airplanes landing and taking off on snow in a beautiful winter day Rolf R Bakke 2024-02-28 | Drone: AdrianCub: LasseTwin Otter: me
Smart 453 Fox Stainless Steel Sport Exhaust Rolf R Bakke 2022-09-14 | Car goes WROOOOM!!!!!!11Replaced the stock exhaust, for a bit more "sporty" sound!It satifies my inner 12 year old!
Drone vs Airplane and everything else! Rolf R Bakke 2022-07-07 | Some content from Stend Aerodrome.Drones are dangerous, dont let them see you!!!
Slaepwerigne by Linus Åkesson Oscilloscope View Rolf R Bakke 2022-06-26 | This one show a exelent amplitude control extending beyond the SIDs standard envelope generator.Made with Corrscope.
3D printed FPV drone test Rolf R Bakke 2021-06-22 | My own design.KK2 flight controller.HeadPlay HD goggles.Connex ProSight HD digital video link.GoPro Hero 32205-2600KV motors with 5 4.5 in propsGS 30A ESCs
Mini-bike with radial engine! Rolf R Bakke 2020-06-16 | My homemade mini-bike with a ASP FS400 radial engine!
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DIY water scooter second test Rolf R Bakke 2019-10-04 | Added rear fins for stability, no spin outs and swimming this time! :)Top speed is about 29km/tSpeed in video is about 20kmt with 3/4 throttle.
Do it yourself water scooter/boat with front mounted engine Rolf R Bakke 2019-09-25 | Made mostly of XPS foam board and wood. Engine is 6Hp.One unique feature is the front mounted engine that eliminates steering and throttle cables. Some upcoming improvements:1: Fins on the stern to make it stable on plane. (Avoids those pesky spin-outs)2: Move throttle to handlebars.3: Add XPS foam side skirts.4: Get a paddle!
C64 Jeroen Tel and LMan $11 Heaven Oscilloscope View Rolf R Bakke 2019-05-08 | $11 is the waveform ID for triangle wave. This tune ony uses the triangle waveform, and some envelope trickery and sound masking to make it sound richer than a standard 1986 single waveform SID tune.
SMART CITY-COUPE gear box problems Rolf R Bakke 2019-03-28 | Gear box goes to 6th gear and back to N when turning the key.First part is a view of the clutch servo, and the gear changes is audible.I have cleaned and checked the angle sensor, clutch servo, gear change servo and wires.This only happens when turning the key, never when driving.Anyone knows where the problem is?
Pepperkakebyen, kamera på toget Rolf R Bakke 2018-12-10 | Noen tøysegutter satte mobilen på ett av togene i pepperkakebyen.Some fools put the phone on one of the trains in the gingerbread town.The world's biggest gingerbread city. Miniature houses, trains, cars and ships made from real gingerbread. Schools and kindergartens contribute every year in making a miniature version of Bergen - all in gingerbread-cookies!
My Diamond lamp Rolf R Bakke 2018-07-24 | Inspired by Big Clive's "Gillian's Diamond lamp".youtube.com/watch?v=PCyUxlsRoRc
Take a seat on the nose of my Scorpion EDF jet! Rolf R Bakke 2018-07-10 | Clipped some bushes and nearly a wire.This setup is supposedly good for 200km/t.Video is a bit glitchy for unknown reasons.
My DIY Electric Kayak Rolf R Bakke 2018-07-10 | Motor from Biltema. (Art.nr. 25-235)Motor controller from Ebay. (60A, brushed)Battery level indicator is 10 LEDs + Arduino Nano.All hardware and firmware made by me.Battery is an old E-bike battery re-arranged to 4s12p, 17Ah.Top speed: 7km/t (3.78 kt)Max power: 600W.Range at 7km/t: 4km.Range at 5km/t: 7km.
Testing different USB power supplies Rolf R Bakke 2018-04-18 | Testing some USB power supplies I had laying around, and also the most inexpensive I could find on Ebay.
Listening to magnetic fields Rolf R Bakke 2017-12-01 | A relay coil connected to a microphone amplifier.
Vacuum chamber fun Rolf R Bakke 2017-11-30 | Pump is from a air condition unit.Chamber is a steel bowl with a 12mm Polycarbonate lid.What to putin next?
Scanning laser backscatter imager Rolf R Bakke 2017-10-28 | Take a image by reflecting light off a scene and register it with a single light sensor! This is the way airport body scanners work, exept they use x-rays.Also this is my first try at using voice over in my videos.
Horse shit stirring machine Rolf R Bakke 2017-09-08 | We have made a machine that stirrs and distributes horse shit while drying to dry it faster. I have made the electrical system and programmed it in C++.The huge 100kW dryer is not running during this video.Our machine consists of an x and y axis mechanism and a spindle, everything else is the dryer which is a separate machine. This company makes fertilizer of horse shit and fish shit.
FMS Super Scorpion electric ducted fan jet Rolf R Bakke 2017-08-24 | My newest toy, electric ducted fan jet, flies and sounds like a real jet! :)
The short life of my Eachine 250 racer Rolf R Bakke 2017-06-18 | It did not quite fit though the opening :)
Aerial video: west coast of Norway Rolf R Bakke 2017-05-19 | Locations/objects: Hellesøy, Svintræ, M/S Øyrosa.
This might be a dangerous way to compress springs... :) Rolf R Bakke 2017-04-30 | Spring compressor did not fit, had to use zip ties. Cutting a few upon installation broke the rest.
C64 LMans Vortex oscilloscope view Rolf R Bakke 2017-04-23 | This features 2 SID voices and 3 digi voices combined into one 8-bit sample track played by the remaining SID voice at 7.8KHz. Low pass filter is applied to the sample track to remove the sample carrier frequency. Cut off is adjusted to match with the instruments played.Sample playback is the newfangled "variable slope and leave the DAC inputs dangling in the breeze."The number of digi channels is pulled from various comment on the internet, but rummaging through the code it looks like it supports 4 channels, each with a individual 16-step volume setting.The song is repeated with only the sample track enabled.
(Re-upload) C64 LFT A mind is born 256 bytes demo memory view Rolf R Bakke 2017-04-22 | Reuploaded since I screwed up the SID type :/Impressive 256 byte demo from LFT:youtube.com/watch?v=sWblpsLZ-O8256 bytes is ONE line in the memory view, a 1/256th of the total RAM in the C64.First instruction being executed is a NOP, lol :) (it turns out this byte has a another purpose, see explanation) LFT has posted an in-depth technical explanation on his site: linusakesson.net/scene/a-mind-is-born
Simple fire tornado Rolf R Bakke 2017-04-10 | Thanks to The Backdoor Scientist: youtube.com/watch?v=1BxQd6AGYiIMade from 10 x 30 cm acrylic tubing cut in half.
C64 Jeroen Tels Turbo Outrun Oscilloscope view Rolf R Bakke 2017-03-12 | To get the three voices of the SID I had to mute the sample playback by patching the SID file, because JSIDPlay does not offer muting of the sample playback. This one was bit of a dog because the SID file contains at least three players, one for the intro, one for main, and one for the rest, which where relocated at run time.The intro and main tunes has low-pass and band-pass filter enabled. Resonance is at minimum on the intro and about 20% on the main tune.These settings and the cut-off frequency never change, and makes little to no difference to the sound compared to filters off. Since one sample is 4-bit, two samples is stored in one byte. The sample playing code plays the high nibble first, then the low one.Self modifying and duplicate code blocks is used to speed things up.Sample playing code for the intro tune:This can play samples at two volumes, full and half. Half volume throws away one bit, making it a 3bit playback instead of 4. 2133 85 E3 STA $E3 // Store accumulator, other registers is not used*** Alternate between code path for high or low nibble2135 A5 E4 LDA $E42137 D0 27 BNE $2160*** Code path for high nibble2139 AD xl xh LDA $xhxl // Read a new sample byte from RAM at address $xhxl. This address is modified by line 216F and 2174 213c C9 1F CMP #$1F // Compare with end-of-sample marker $1F213e D0 0C BNE $214C // = Branch if Not Equal2140 A9 00 LDA #$00 // Equal, turn of sample playback2142 8D 0E DD STA $DD0E2145 A9 38 LDA #$38 // and set volume to base line (half of full)2147 8D 18 D4 STA $D418214a D0 2B BNE $2177 // Relative jump to common code path214c 8D 61 21 STA $2161 // Store sample byte for later use by the low nibble code path214f 4A LSR A // shift high nibble to low nibble2150 4A LSR A2151 4A LSR A2152 4A LSR A2153 EA / 4A NOP / LSR A // This is NOP for full volume or LSR A (shift right, divide by 2) for half volume. This is modified by the music player.2154 18 CLC2155 69 3v ADC #$3v // Add filter enable bits and volume offset v (0 for full volume or 4 for half volume. This is modified by the music player.2157 8D 18 D4 STA $D418 // PLay sample!215a A9 01 LDA #$01 // Set nibble selector to low nibble215c 85 E4 STA $E4215e D0 17 BNE $2177 // Relative jump to common code path*** Code path for low nibble2160 A9 sw LDA #$sw // Get sample byte saved by the high nibble code path2162 29 0F AND #$0F // Strip off the high nibble2164 EA / 4A NOP / LSR A // This is NOP for full volume or LSR A (shift right, divide by 2) for half volume. This is modified by the music player.2165 18 CLC2166 69 3v ADC #$3v // Add filter enable bits and volume offset v (0 for full volume or 4 for half volume. This is modified by the music player.2168 8D 18 D4 STA $D418 // Play sample!216b A9 00 LDA #$00 // Set nibble selector to high nibble216d 85 E4 STA $E4216f EE 3A 21 INC $213A // Modify data field of instruction at $2139: Increase 16bit address by one.2172 D0 03 BNE $21772174 EE 3B 21 INC $213B*** Common code path2177 AD 0D DD LDA $DD0D // Clear interrupt flag217a A5 E3 LDA $E3 // Restore accumulator217c 40 RTI // Exit NMI interrupt serviceSample playback code for the main tune:This one is similar to the intro one, but can play samples with three different volumes, full, 1/2, and 1/4.Full volume is never used, thus wasting 1 or 2 bits of the 4-bit samples.This one also resides in page zero, a 256 byte RAM area normally used for storing data for faster access. This speeds it up a bit.It contains one completely unnecessary instruction! Can you find it? :)00a0 D8 CLD00a1 85 0B STA $0B00a3 AD xl xh LDA $xhxl00a6 C9 1F CMP #$1F00a8 D0 0C BNE $00B600aa A9 00 LDA #$0000ac 8D 0E DD STA $DD0E00af A9 38 LDA #$3800b1 8D 18 D4 STA $D41800b4 D0 2A BNE $00E000b6 24 0A BIT $0A00b8 30 12 BMI $00CC00ba 4A LSR A00bb 4A LSR A00bc 4A LSR A00bd 4A LSR A00be EA / 4A NOP / LSR A00bf EA / 4A NOP / LSR A00c0 18 CLC00c1 69 3v ADC #$3v00c3 8D 18 27 STA $D41800c6 A9 80 LDA #$8000c8 85 0A STA $0A00ca D0 14 BNE $00E000cc 29 0F AND #$0F00ce EA / 4A NOP / LSR A00cf EA / 4A NOP / LSR A00d0 18 CLC00d1 69 3v ADC #$3v00d3 8D 18 27 STA $D41800d6 A9 00 LDA #$0000d8 85 0A STA $0A00da E6 A4 INC $A400dc D0 02 BNE $00E000de E6 A5 INC $A500e0 AD 0D DD LDA $DD0D00e3 A5 0B LDA $0B00e5 40 RTI
SABB Diesel 2H Rolf R Bakke 2017-03-03 | Coworkers refurbished boat engine, made in the very same city I live in.
C64 Jeroen Tels Myth Oscilloscope View Rolf R Bakke 2017-03-02 | b759f0743ec3e8822088f81c4f24c779cac242fe802f7b7986d2e37b2ceefdcedf375980175255ab4c6c161f20a4e61b8830b3f0f95900e08c9a
C64 Rob Hubbards Commando Oscilloscope view Rolf R Bakke 2017-02-15 | 14 08 09 13 20 14 15 0E05 20 13 0F 15 0E 04 1320 0C 09 0B 05 20 01 2002 12 0F 0B 05 0E 20 0304 2E 2E 2E
C64 Rob Hubbards Mega Apocalypse Oscilloscope View Rolf R Bakke 2017-02-01 | What is the difference between an elephant?It can neither ride a bike!
C64 Rob Hubbards Warhawk Oscilloscope View Rolf R Bakke 2017-01-27 | You're a bus driver. At the first stop 4 people get on. At the second stop 8 people get on, at the third stop 2 people get off and, at the forth stop everyone got off. The question is what color are the bus driver's eyes?Answer: The same as yours, you're the bus driver.
C64 live view of RAM, and impromptu live SID music hacking Rolf R Bakke 2017-01-18 | Green cells is memory reads, red is writes, yellow is both. Blue is code being run.
C64 Martin Galways Arkanoid oscilloscope view Rolf R Bakke 2017-01-09 | The internet says this is the first published SID tune on the C64 using samples. Except it does not contain any samples! The digi sounds is procedurally generated by small code blocks in the sid file, like this one:0000 A0 05 LDY #$050002 A9 94 LDA #$940004 18 CLC0005 69 40 ADC #$400007 8D F8 42 STA $42F8000A A2 19 LDX #$19000C B9 05 43 LDA $4305,Y000F 38 SEC0010 E9 01 SBC #$010012 D0 FB BNE $000F0014 A5 DE LDA $DE0016 18 CLC0017 69 65 ADC #$650019 85 DE STA $DE001B 29 0F AND #$0F001D 8D 18 94 STA $D4180020 CA DEX0021 D0 E9 BNE $000C0023 88 DEY0024 10 E4 BPL $000AIt is basically a loop containing a a variable delay and a formula generating a new number between 0 and 15 stuffed into the volume register $d418.There where one loop per digi-sound with different delays and formula.No NMI interrupt used.Screenshot of the sounds: http://imgur.com/gallery/i6pmD
Onboard my Crazy Bee at BMFK-indoor, Sotra Arena 2016 Rolf R Bakke 2017-01-04 | My 8 year old Lazy Bee foamy in glorious 59.94fps! :) Another video of it here: youtube.com/watch?v=BeHqH9QO5dAand here: youtube.com/watch?v=wxXu_rmLeNsHow it's made: youtube.com/watch?v=De4BwjVnqKc
Another run of my DIY four-stroke engine Rolf R Bakke 2016-12-21 | A bit tougher run this time. In the last seconds of running you can hear it's starting to bind due to heat expansion of the piston. It frees up again when it cools down.
Northern goshawk (hønsehauk) lands on my car windshield. Rolf R Bakke 2016-08-28 | Unexpected wildlife contact :)Beautiful bird.
