- August 14, 2017 at 4:13 pm #41265
I wasn’t able to get started until this morning, and had to leave for the week before the first parts were even printed. 🙁 Oh well, next weekend will still be workable.
I have to find a donor table too, I might be able to do that on the way home Friday since I’ll be traveling through the big city and can peruse craigslist beforehand.August 17, 2017 at 7:50 pm #41694August 18, 2017 at 4:17 pm #41802
And they looked as good in person as in the listing. $50 for the pair and now I’m planning on two ZenXYs instead of 1. 😉 The first couple of parts are printing 3 hours to go.
Dang it, this new phone isn’t letting me rotate the picture right (or else I just am not getting it yet).
Attachments:August 18, 2017 at 5:36 pm #41818
That looks very similar to the table I used. Very nice!August 27, 2017 at 2:57 pm #42480August 27, 2017 at 3:18 pm #42490
Onward we go…
Into the end piece, note which hole
Back out and over to the other side
Around the idler, note again which
Around the next idler
Across the center. I ended up reversing the zip-tie
Back again to the side, but on a different idler
Then into the second idler at the corner
And out the other side
Attachments:August 27, 2017 at 3:30 pm #42500
And likely the last post with belt pictures.
Across the rollers
To the second motor, note that we start on top this side
Back to the next idler
Now it’s time to hook up
One end first
All tied together!
Over she goes and the bearing clicks into place
Attachments:August 28, 2017 at 5:23 am #42525
Great pics, Bill! Very helpful in visualizing everything, especially the belt routing. Thanks!August 28, 2017 at 8:35 pm #42617
I somehow thought the captions would be visible near the embedded images, but at least they’re shown at the thumbnails. It makes a lot more sense with them than without.September 10, 2017 at 8:00 pm #43628September 11, 2017 at 4:14 pm #43672
And it lives! Noisy as all get out though, sounds a bit like an air raid siren in miniature.
Attachments:September 11, 2017 at 4:22 pm #43677
Next steps involve the decorative border between the original table hole and the mechanisms limits, trimming and mounting the LED rope to fit that border (as you can see mine is three times too long), cleaning up the wiring and mounting a pullout ‘drawer’ for the display.
Eventually I want to control the LEDs from the Arduino (three MOSFETs and toggle it on in Marlin) and add Bluetooth to stream the gcode from Sandify to the Arduino.September 21, 2017 at 8:39 am #44343
It turns out if you put too much media down the ball can get lost during a session. I showed the symptoms above, but was able to verify that the issue was directly related to the depth of the baking soda. I printed a zen rake and used it to drag a bunch off to the side and patterns now complete without the skips. I’m using a half inch ball but haven’t tested to see how deep we can go without skipping. It’d be worthwhile to see just where the issue crops up, see how it differs with different sized balls, and see how much the magnet strength and distance affects it.
1 user thanked author for this post.January 23, 2018 at 10:51 am #51566January 23, 2018 at 1:00 pm #51585
I somehow missed this whole thread. Looks great!January 23, 2018 at 1:25 pm #51590
Dude, I had no idea!, Heffe I had no idea how you found this or why we didn’t get notified…
Bill, Thanks for sorry we missed it. Looks good, You might not be tap dancing right now but soon enough you’ll be able to get back to all of these projects.January 23, 2018 at 1:29 pm #51592
Occasionally I find something in the recent replies that I am not subscribed to. Damn computers!January 24, 2018 at 7:35 am #51628
I’m going to come up with a sequence of patterns to program into it, trying to use the ‘load a file and execute it’ gcode command to chain them together. I’ll use Sandify patterns and possibly hand code something like an etch-a-sketch “BEER / HERE” logo. Then it goes down to be displayed in the window of Route 30 Bottles and Brews in The Dalles. I’m kind of hoping Brian will like it enough to swap all his tables over. 🙂
I also have a WiFi/Bluetooth module I want to connect that would allow me to dump gcode via a virtual serial port using either protocol. Then I could potentially use Sandify to send a pattern directly from a computer or phone. And I want Sandify to expand to generating cursive text in the display area, so I don’t have to hand code it. ;}January 24, 2018 at 8:31 am #51638
I did a few crude DXF by hand in CAD and then let Estlcam make my gcode, I tweaked the first few and last few lines to get it to start and end where I wanted. I just used lines and curves in a sketch and never let them over lap but would get them super close (.1mm) where needed, that way it would generate gcode in the correct order in a continuous line. Export DXF.January 24, 2018 at 10:17 am #51645I also have a WiFi/Bluetooth module I want to connect
The Arduino gcode sender Karl wrote and I worked on would work well on an esp8266 or esp32. Then it could host a webpage to upload gcode, or just open a port that you could stream a json file to. There are some neat esp32s for about $10 that have a built-in oled, and I’ve made a library to handle most of the BS for them. IIRC, they are called lolin32? Then just add an SD card for permanent storage. The front end could be sandify, or a page hosted on the esp.
Making sandify send to a serial, or some port would be pretty cool. The web version could even do it, as long as there was a way to specify where the zen XY was. Otherwise, you could run it locally, if the esps didn’t have internet.
I think the cursive wouldn’t be too hard, except for the art. The tricky thing is that every letter/symbol you would want needs to be well defined, and they need to be continuous, and start/end in specific places. If I had a list of x,y points for each letter, I can easily string them together in sandify. Anyone have any experience with fonts? Things like ‘t’ could retrotraverse to make the shape.January 24, 2018 at 10:18 am #51647
I’m not sure a bar would need all that utility though… Just writing the gcode to eeprom via USB would do it. How often would you want to update the patterns? Do you want to advertise specials or something? Have a rotating pattern for holidays?January 24, 2018 at 8:34 pm #51699
Eventually I want it easy enough that once I set it up the owner can edit the ad text and choose the display frequency for them. Perhaps a WYSIWYG text editor for specific fonts in Sandify… I’m thinking you want to do outside to outside instead of outside to center or center to outside for text dumps, and reverse direction when drawing a second line of text. Maybe something similar to strike through, but only between letters, not through the letters.
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