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3Instructables9,667Views8CommentsJoined February 28th, 2016

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  • RC 44 commented on RC 44's instructable Brookstone rover massive upgrade!6 months ago
    Brookstone rover massive upgrade!

    Cool! I was also planning to use a 4 channel transmitter, but it`s currently with issues...I discontinued this project because it was quite slow. My 3S battery exploded and I`m still waiting for my new ones, so I couldn`t use 12V.I also was planning to control the speed through differential steering, but interfacing with only 2 channels is very hard and time-consuming.I`m happy you took advantage of my instructable and improoved it!

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  • RC 44 commented on nothinglabs's instructable Arduino Laser Show with Full XY Control7 months ago
    Arduino Laser Show with Full XY Control

    Thanks for answering!I was already thinking about the centering problem. Another thing wrong that I discovered is that your project needs an DAC (Digital to Analog Converter). I altered the code a lot and put elastic bands (very soft and stretchable) to center the motors. It worked well, but the drawings had interference due to the PWM signals. What i'll try do do:-Apply a DAC to each control wire going to the transistors.-Use two nRF24L01+ with another arduino (UNO) and a matrix keyboard to trigger the effects from a distance, making a decent party machine.*I'm not using speakers for two reasons, because since they are moving at high speeds, they vibrate, because they have paper cones, they make a lot of noise and the second reason is that simply using speakers will increase he space...see more »Thanks for answering!I was already thinking about the centering problem. Another thing wrong that I discovered is that your project needs an DAC (Digital to Analog Converter). I altered the code a lot and put elastic bands (very soft and stretchable) to center the motors. It worked well, but the drawings had interference due to the PWM signals. What i'll try do do:-Apply a DAC to each control wire going to the transistors.-Use two nRF24L01+ with another arduino (UNO) and a matrix keyboard to trigger the effects from a distance, making a decent party machine.*I'm not using speakers for two reasons, because since they are moving at high speeds, they vibrate, because they have paper cones, they make a lot of noise and the second reason is that simply using speakers will increase he space required and I want for it to look more professional (just my charms...).Another thing I improoved is that I used two lm317T regulators:One setted permanently to 8V to power the motors and the other with a potenciometer to adjust the brightness again with a resistor to limit it to a maximum of 7.4V (laser's comfortable voltage) for the laser. Both regulators are connected in parallel to the 12V rail.The 12V rail can be connected to a 12V power supply, or, in my case, a 3S lipo that I protected it with cell monitoring features using voltage dividers and some code of the arduino. This makes it PORTABLE!The Projector now has a LCD with a temperature sensor and a cooling fan, wich is turned on and off by a relay according to the internal temperature.I'll post a instructable about it soon =).

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  • RC 44 commented on stanleyprojects's instructable Arduino Laser Projector + Control App8 months ago
    Arduino Laser Projector + Control App

    I`m having a problem with the softare. I`m using windows 10, 64-bit and I click to open the app but it simply doesen`t wanna open. It shows the loading cursor for 4 seconds and stops, with no sign of the app.Thanks.

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  • RC 44 commented on nothinglabs's instructable Arduino Laser Show with Full XY Control8 months ago
    Arduino Laser Show with Full XY Control

    Nice project! However, I'm having a problem.I used the same exact parts: Tip120 transistors, 470uF 35V capacitors, 100ohm resistors. But I chaged one sight thing. I used BLDC motors and only connected two wires of each one to the setup. Before watching this instructable, I already saw people doing laser projectors using stepper motors, BLDC motors, an normal commercial galvos. I didn't planned to buy a stepper motor, or obviously a commercial galvo. The motors were saved from an old DJI Phantom Vision+ gimbal that fell from the drone during flight and broke the ribbon cable. I changed that cable many times and it always broke. So I bought a new gimbal and used the intact brushless motors. I also am using a 1W violet Laser, (Because I love strong laser beams!) with another tip120 trans...see more »Nice project! However, I'm having a problem.I used the same exact parts: Tip120 transistors, 470uF 35V capacitors, 100ohm resistors. But I chaged one sight thing. I used BLDC motors and only connected two wires of each one to the setup. Before watching this instructable, I already saw people doing laser projectors using stepper motors, BLDC motors, an normal commercial galvos. I didn't planned to buy a stepper motor, or obviously a commercial galvo. The motors were saved from an old DJI Phantom Vision+ gimbal that fell from the drone during flight and broke the ribbon cable. I changed that cable many times and it always broke. So I bought a new gimbal and used the intact brushless motors. I also am using a 1W violet Laser, (Because I love strong laser beams!) with another tip120 transistor and another 100ohm resistor connected to pin 12. I also used a separate power supply to power the laser (It's way much powerful!) I used a powerful amplifier and connected each motor to a channel (X to Right, Y to left). I played music in it (with a lot of bass) and it worked really well like a normal galvo should work. But I wanted to do animations and write text at a decent quality.Ok, the problem:I run the same code that you provided (Thanks, so easy to use!) and the projector only shows weird circles, lines and shapes. IDK what to do, maybe the brushless motors were not ment to do that.

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