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>> Home > Tags > arduino

CNC boat kits...? by DodgyGeezer Lieutenant   Posted: 12 days ago
I'll probably go for a laser cutter in the end. A big CO2 one - but these are powerful tools, and i'd like to have a reliable cutting bed before experimenting with something that might cut the shed in half! The obvious answer is to use some driver software that does handle tool radius compensation - I understand that the Tiny board firmware is now open source with a new name - G2Core. I think it needs a bit more poke than an Arduino Uno, though. I intend to simply slot sheets of balsa into it and crank out kit parts - which means a single pass cut. One issue is how to hold the sheet of balsa down without interfering with the cut. I was wondering about a vacuum base. If you want to observe a laser cutter safely, I hear that the Yank modellers are sealing them in enclosures, and viewing progress through a webcam, which is one answer....

CNC boat kits...? by DodgyGeezer Lieutenant   Posted: 12 days ago
I'm doing the eShapeoko - I wanted a more rigid machine for general purposes, and I liked the fact that you could specify the X and Y axis lengths. For cutting model boat parts you rarely want something as wide as 1 foot - but you often want items of length greater than 1 yard. The eShapeoko has standard sizes as extreme as 15 inches by 60 inches, and can easily be extended. I've gone for 18 x 36 inches - should be fine for EeZebilts... One of the things that's a bit annoying with GRBL is that it doesn't currently do tool radius compensation. I'm using an arduino with grbl as well, and if I cut my plans as drawn they will all be a tool radius out. I am currently looking to use a 0.5mm tool so the effect will be small - but if you know of a better driver interpreter...?

CNC boat kits...? by Delboy Sub-Lieutenant   Posted: 12 days ago
Having built (well, assembled really) i am currently building a small CNC router with 3D printed parts. See Currently redesigning to be driven by GT2 belts and pulleys as I have some reservations about using 3D printed gears from the point of view of back-lash and wear. The stepper motors are driven from an Arduino Mega running the GRBL g-code interpreter. There are a host of free g-code generator tools to be found on the internet. Some of them are a bit "knife and fork" but there are some useful ones out there and there is lots of helpful information too.

Your ideas on how to stabilize a flat-bottomed freighter. by Haverlock Fleet Admiral!   Posted: 3 months ago
you could consider using some of the modern tech and fitting active stabilizers there are a lot of cheap solid state gyros and if your receiver does not have enough free inputs and outputs an arduino mini could handle the logic.

Old Futaba servo wiring... by timgarrod Lieutenant   Posted: 5 months ago
been look for one of these for 40 megs for some time. been looking into the arduino route but only find it for 2.4 :(

Smoker / Light Contoller by timgarrod Lieutenant   Posted: 8 months ago
Afternoon All, Really please as finished off the smoker/light controller i've been working on. it works with any smoker that has a fan. theres three version avaible, but all versions have the same light functions, one switch - on /off (can change to a proportional to work with a water pump) Three position Swich, controlls two light circuts or anything. Oil heater, will turn the fan and heater on only when required. saves on Battery and to replicate a diessel engine. Water vapor system, able to turn off/on the power to the system remotely, Diesel engine, will power the fan 100% and the start and the slow the fan down till model is just about to move off. Steam Engine - Fan at idle is about 20% so always push the smoke up but then it will encrease with throttle input. the best thing i think is that any thing can be changed via the arduino. Will be make a few so if any one interest in one, please PM me. this is one i've just made for a friend that use the Oil heater and mine using the water vapor system Thanks

12v esc for trolling motor build by Dave M Fleet Admiral!   Posted: 1 year ago
Interesting project. Difficult to give advice on the info available. Looks like a steerable powered nozzle at the rear but what motor is it and what are the specs? An Esc does all the hard work and converts the rx pulses into usable power. I have arduinos and they can be programmed to control the power and rotation of a motor but would need additional high power Mosfets as well as other circuitry to buffer the unit from the output. If you are really into arduinos then a walk in the park but I believe an ESC would possibly be more robust and waterproof. It would be good if you were to post a build blog of your progress as the subject is certainly different to any models we have seen to-date. Good luck with the build

rotating radars off mast by Dave M Fleet Admiral!   Posted: 1 year ago
Hi seafarer You do need a four wire stepper motor driver. I used my Arduino as I have one. The pot varies the speed thro the Arduino so it can't be used on its own. I have some ic chips that can be used as drivers but I have not had time to program and develop so far. I have used geared dc motors but if in a quiet display area they can be noisy, which is why I intend to use this type of motor. I will do some more research and get back with possible alternative forms of electronic drives.

rotating radars off mast by seafarer Chief Petty Officer   Posted: 1 year ago
Thanks Dave, you've set me off on another adventure into the unknown but I think I'm I need the Arduino UNO controller and could I control two motors off it (it doesn't matter if the speed is the same ) . If I don't need the controller ,could you explain a bit more about using the POT (presumably a potentiometer?)

rotating radars off mast by Dave M Fleet Admiral!   Posted: 1 year ago
Hi Seafarer You can buy very small 4 wire stepper motors that will fit. I bought a ruck from China via E-Bay for a few pounds and they work fine. The smallest is less than the size of my little finger nail and I need my scope to see the wires which I sourced from Component Shop at Haydock Show. You do need a stepper motor driver and can control the speed down to single steps with a simple pot. I used an Arduino to test and the program is on the Arduino website. When I get time I might just do a blog showing how. Dave

Twin motor control problem by Haverlock Fleet Admiral!   Posted: 1 year ago
it depends how much work and thought your willing to put in but for anyone with a bent for such things an arduino can " read" RC signals and with a suitable add on board control servos so should also be able to control ESCs thus you can tailor the drive to your requirements including the forward on one drive and reverse on the other for tight turns.

3D printing by Dave M Fleet Admiral!   Posted: 2 years ago
Hi Wayne I did warn you about the noise. I also have complaints about the smell but I do use a heated bed and my printer is not in an enclosure. I have to agree that a usb stick is the best option to use as the timescale can be hours if not days and adding a PC and LAN to the equation does not help. I bought my printer to make originals that I can then make castings off. I can take any CAD drawing and scale to any size so the process is both quick and straightforward. As you have found there is a wealth of subject matter on line. Whilst a 3D printer is great for small quantities it is not so good if you intend mass production. Many hearing printer perhaps believe the 3D process will be just as quick when in fact it is anything but quick. I have to ask, how are you progressing with the Arduino? Have fun Dave

Bluebird K7 by Fireboat Fleet Admiral!   Posted: 2 years ago
Hi Wayne, thought I'd chip in on this thread when I saw the words arduino! The stepper motor mayyy need a stepper motor controller. Something cheap like a ULN2003 to go between the UNO and the motor. I'm not sure the direct outputs from the arduino UNO will offer sufficient current. Steppers can require quite substantial currents, especially if they stall or are told to "pause". There are some great libraries available for steppers too. I recommend the Adafruit library. Just make sure the correct pins are identified in the software. If it judders instead of rotates, it's most likely the wrong pins have been assigned to the wrong motor windings. If you get stuck, I'm happy to help with questions too 😁 Stephen

Bluebird K7 by Dave M Fleet Admiral!   Posted: 2 years ago
Hi Wayne Crikey you really are moving into new territory. I have both an Arduino and Raspberry and they are very versatile once you learn how to program. Yes you can program to do most tasks including animating your pilot. Good luck with this Dave

Bluebird K7 by Dave M Fleet Admiral!   Posted: 2 years ago
Hi Wayne The stepper motor on the actuator will require an Arduino or Raspberry to drive. I assume you will be able to replace with a brushed motor if you have neither. I also have an interest on model trains and we use small servos to operate the push rods for points. The retract switch on a Tx would provide the two positions needed by the servo. You are really cracking on with the project and the results are looking very impressive. Dave