I describe the microprocessor board for the Gold Bump Shaker table. Here is a link to the code: drive.google.com/file/d/1JJ53... This board controls the H-bridge switch that drives the linear motor.
The more theory you display , the more interest in your project drops off. Wonderful Tutorial for those that are interested. And I figure sharing with those that are interested is your aim. I myself have yet to budge on ANY of your Projects , despite Massive interest and Motivation after each Projects initial release. And that is my fault , certainly not yours. Because some of your Projects are rather simple to construct , yet very useful. Thank You for your tapes just the same.
Hello GST. I don't have a huge desire to be a YT star, although I'm sure I have the looks to be one... Yeah, I'm just interested in making stuff and sharing the way I do it. Perhaps it can give a little pleasure to someone else.
@@orophilia You seem methodical and precise in all that you do. I have trouble accepting it , but is Much better to share something with a few who are really interested than sharing with millions who are just passing through. Can I be YOU ? - SWAP ?
Hi Dave, i for one am very appreciative of the effort you have gone too on this project, as i am building it as you already know. Anyone who bothers to actually start this project will soon realise that the detail is invaluable. Thanks so much for the effort. BTW i have gone ahead with the lilygo display. dont need more complications! Kind Regards Geoff
Yes CODE! I love code. Thank you. Now I have to find my H-bridge. I bought 3 about 4 years ago. I hope the cat didn’t eat it. He already noshed out on an Arduino nano. Thanks again.
In motor control I usually synchronize the ADC to the PWM so I can sample during the off period and then I track the EMF signal of the motor. This works for most motor systems when you want to be in synch or resonance with the motion. It consumes much less power than a fixed frequency and is self adjusting to the load. In your case it should be possible to put energy into the movement during the motion of the table and stop during the spring return and again switch at the bump stop (or spring return other way during startup). The other benefit of synchronized driving is the ability to set a "bump energy" by regulating the power so the EMF has a certain swing out from the neutral which it again returns to the bump with. This could possibly be combined with a adjustable bump-stop for the option of adjusting the full travel. The drive would selv-regulate to new bump stop.
Great comment. I want to measure the position of the table and feed it back into the control logic, but perhaps I only need to measure the back EMF of the motor. I'll have to work on that. I agree that synchronizing the force to the motion and to the bump is an excellent plan. Thanks.
Thanks for another video, helps put the pieces together for someone without any electronics experience. I'm thinking of using the M18 batteries I already have, according to what I found online it appears i'd need to go to a 20 AWG wire make up for the drop in voltage, does that sound right? I designed a spool and 3d printed it, if youre interested I could share the model or mail you one.
@@orophilia I'm working on building the copper coil. The m18 are milwaukee 18v battery packs. I have a lot of these packs for power tools. They also come in handy for pumps, vacuums, impact drills. And the spool is for the coil. You mentioned reducing the coil resistance to balance out a lower voltage. I'm planning on building the copper coil with the 3d printed spool and power it with the 18v battery. And wanted to get your thoughts if using a 20 AWG wire would be sufficient to offset the drop from 24v->18v.
@@sparks4025 Yeah, I use Makita battery packs for field use. They are very convenient. The voltage varies quite a lot from fully charged to discharged, so I would still use the boost converter to get up to 24V for the motor. It will be very stable. You should use 24 AWG magnet wire and shoot for about 15 ohms. I would use #24 wire even if you drive the motor directly from the battery. #20 AWG is way too big. Cool on making your own coil forms! -- Dave
Thank you! Amazing video. I can't wait to get working on my motor, but I can't understand how the voltage divider works or how to make one. I also can't figure out which port the pwm signal goes into to get the read out on the screen.
@@bradysbackyardfarm9836 In my design there are two other PWM controllers that are completely independent of this microprocessor board. One controls the voltage on the pump and the other is a spare. The input to the two voltage dividers will come from the outputs of these independent PWM controllers. -- Dave
Thank you so much! That explains a lot. I thought that they were for the h bridge switch. Which pin or pins do the voltage dividers plug into on the micro controller?@@orophilia
Wouldn’t a simpler design just employ a DC drill motor with a strong magnetic attached to one side if the shaft and then mount opposite facing magnets to wood mounted underneath the table. Then just use a pwm motor controller to adjust the frequency of shaking?
Yes, I think you could probably make that work. I need the ability to adjust the frequency and the amplitude (force) at the same time, so the micro is nice to have.
I understand 👍. BTW, do you have plans or video available for making the table, specifically the use of a table saw to cut the groves, sanding, and type of paint. Maybe you do have a video and I just need to find it. Thx for the reply! Great content 👍
@@MrMoonFlame Yes, there are videos that go into great detail on the construction of the table, the electronics and the microprocessor board. There's code also.
Yes, I think it's possible but I haven't tried to find off-the-shelf electronics to do it. I recommend that the controller be able to adjust both the frequency and amplitude of the motion.
When I tried to upload your code onto the mirco controller I got this error code what do I do?C:\Users mbra\AppData\Local\Temp\.arduinoIDE-unsaved202418-34172-109mtlc.dkrug\sketch_feb8a\Bump_Shaker_Code.ino:7:10: fatal error: TFT_eSPI.h: No such file or directory #include // Graphics and font library for display ^~~~~~~~~~~~ compilation terminated. exit status 1 Compilation error: TFT_eSPI.h: No such file or directory
Howdy Brady. Yeah, it can be frustrating to get code to upload and run. One thing at a time. Are you using the Arduino IDE version 2? Do you have the Lilygo T-Display-S3? It looks like you need to load the TFT_eSPI library. Here's a YT video that should help: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-WFVjsxFMbSM.html
Thank you. I am using Arduino IDE version 2.3.0. I am using the Lilygo T-Display-S3 micro controller. I have not loaded the TFT_eSPI library. Thanks again! @@orophilia
