Gear Hobbing Controller with esp32
ฝัง
- เผยแพร่เมื่อ 19 มิ.ย. 2024
- A very quick and dirty hobbing controller with a walkthrough of my setup. Thanks goes out to @AndysMachines for the inspiration.
Source code: github.com/jschoch/dirtyhobber
Please put your questions down below or on github! - วิทยาศาสตร์และเทคโนโลยี
very cool, it's like one additional dimension on top of a normal automated dividing head. just a simple firmware change and you can use it for normal divisions too (making rotary table dividng plates or scribing lines onto handwheels)
Огромное спасибо тебе человечище! Это то что нужно! 👍🔥
The cost of gears are absolutely insane! You'd think they're made of gold. I can see why anyone would go through the effort.
Hi Jesse,
Very nice project. Would you mind provide your recommendation regarding the encoder and servo as well?
I was using a 600PPR encoder which produces 2400CPR. Depending on your electronics skills the easiest type to get is a TTL type, but the differential signal types are more resistant to noise. Mine is a LPD3806-600b. It was $10. The servo was as stepper online Model: iSV57T-180 ~90 and it comes with the driver.
@@JesseSchoch I believe you mean NEMA23 with driver iSV57T-180 ~90, right? Which differential signal type encoder do you prefer if there is any? Thank. Sandor
@@sandorfulop9352 you'd need to build something to process the differential signal into the MCU, so I hope you know how to do that. I don't have a recommendation but the differential encoders have A+/- and B+/- (and maybe z+/-) so they have a lot more wires. They are a bit more expensive but should all work the same.
Should be pretty easy to add WiFi I guess? Great project 😀
Yup, in my electronic lead screw I use wifi + websockets and it works great.
Why don't you replace the lines with copper as per original. The copper can be bent to stay out of the way of the slide and won't move or get brittle like plastic. Look much neater too. Pretty easy to open the end of the copper tube to make it a snug fit if necessary.
sorry, but what lines are you talking about? Sounds like you might be commenting on my mill oiler video but you put the comment on the gear hobbing video?
@@JesseSchoch Hi Jesse, you are right, the comment was about the mill lube system video. I watched until the end and then started to type a comment. It must have jumped to the next video in the queue while I was trying to compose my thoughts. Sorry for the confusion. My mill has all copper lines, no restrictors or flow control valves and it works reasonably well. Some sort of flow control would be better as I have to give several pumps to get oil to all the lubrication outlets. I have to take the table off soon to repair a bent chip shield so I intend to try to restrict some of the shorter tubes by slightly crushing them while everything is visible. Cheers, Gary
Nice. The GitHub link doesn't work for me though.
the link is updated, see if it is working for you now.
There is a company out that has castings and instructions so you can build your own gear hobbing machine. I think it's like 500 bucks.
thanks for the comment. Are you referring to the martinmodel casting set? It looks like a fun project but it uses gears for the ratio. My setup uses a bs0 dividing head that can be used for many other projects, it was ~330, the servo was $80, the esp32 was $5. In my opinion this is more versatile than a dedicated hobber setup because it can do any ratio without needing change gears.
@@JesseSchoch Yes that's the machine. I just wanted to add the comment because not everyone can jump right into the computer and electronics side of things but they can do the machine stuff. I was wondering a little off topic (but on topic for your video) ..... if you had a larger diameter reader do you think you could run it faster and it wouldn't lag?? Or that would even speed it up that much further? And if that's the case what if it were smaller
@@dizzolve not sure what you mean by reader
wouldn't help. if the encoder diameter was larger but the same pulse per rev, there's still the same number of pulses per rev. I wonder if it's acceleration related, skipping an 1/8th of a revolution on startup before it gets up to speed? Being a servo it's weird that it wouldn't recover from that though.