This topic contains 24 replies, has 7 voices, and was last updated by 
click 1 year, 8 months ago.
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@aidanruff I’ve hand reeled it, too, but I was doing it manually - slowly and making sure filament is not under tension. It works perfectly well. Here’s the ‘rig’ I am still using:
http://www.cel-robox.com/forums/topic/mapes-yet-another-spool-holder-but-for-robox/#post-16147
OMG - it almost 2 years old!!!
That is brilliant! Much easier than the electric drill based version I used, which was very Heath-Robinson.
I wonder if it would be possible to add a cam to drive a reciprocating filament guide so that it spools on totally evenly? Christmas project!
Did you design it on SolidWorks?
Working on IOT devices at www.hackittandbodgitt.com using the ESP8266 modules from Espressif
@aidanruff “Did you design it on SolidWorks?” No. 🙁
But I am more than happy to add some electronics potentially needed for it - no matter if it is automatic (drill or otherwise) or manual way of turning the spool…
I think that even if it was still hand cranked, it shouldn’t be beyond the wit of man to come up with something to shuttle the filament back and forth to wind it evenly. I just did it by hand, so combined with the variable tension that’s probably why I have difficulty in printing directly from the reel and have to pull filament off manually.
That would be a great system!
Working on IOT devices at www.hackittandbodgitt.com using the ESP8266 modules from Espressif
I’m daydreaming of one for 2 years now - with very little time to spare to play for it… 🙁
If you like fishing and are familiar with baitcasters, they have a levelwind mechanism that spools line onto the reel evenly. They have been around for years, so I wouldn’t be surprised if someone has already adapted it for this purpose.
Having the spool rotate faster than the line coming off it is a disaster during the cast, so you can be assured that the levelwind does a great job, and follows KISS principles - a clever bit of engineering.
A bit hard to explain, but what happens is there is a shaft with diagonal grooves cut into it. I guess you can imagine the X-axis rail on the Robox. Then the line guide sits on this rail, with a little spur that rests in the grooves, so that when the shaft rotates, this translates into left/right motion on the rail. You could run the filament through a sponge to introduce some tension as it spools on, and to clean it at the same time.
Just my 2 cents
Ah, I see. Now you mentioned - it was maybe couple of decades since I last went on fishing 🙁
I almost complained that you cannot control the lateral speed - but even that is not correct. Different gearing and/or belt pulleys could sort it out. Why not! I’m more than happy to try out your design. Unfortunately due to time constraint (at least until April) I cannot do much else 🙁
What I had in mind was slightly different approach. Similar time I stopped fishing, a friend and I made a machine for winding tiny coils used by Swedish waterworks (not sure exactly what for). It consisted of PWM controlled DC motors that turned main coil with optical coder (similar as in old style computer mice) and a guide of a long screw (driven by second motor) + some stop switches. All controlled by 8051 µController connected to 4x 7seg display + 4 buttons - all on i2c… You could set the speed of reeling it in, thickness of the wire & number of winds.
PS here’s something similar to what we used on our fishing rods going after pike (and guy next to me always go at least 4 times as much as I did! Bah)
That’s a great idea. I presume that the gearing would have to be adjusted for the size of filament and the diameter of the pickup reel. In this case, it would always be 1.75mm filament and a Robox smart reel, so a fixed set of gearing should work.
Food for thought
Working on IOT devices at www.hackittandbodgitt.com using the ESP8266 modules from Espressif
Found a clearer video to explain the concept, but I suppose any mechanism that will convert rotational motion into reciprocating motion will do. Just that the screw version is quite compact and elegant 🙂
you get the idea…
@click Fishin’ ain’t what it used to be - Shimano reels cost a small fortune now! I suppose its a small mercy that you could probably print out your own hard bodied lures…
Keep in mind that as your reel fills, the amount of filament required to keep the spool filled will change, so the gearing has to be variable or you have to adjust the throw of the shuttle as the spool fills. When the spool is just starting, it will need to go back and forth faster than when the spool is almost full.
I operate two Betas and four Production Robox.
I am the US/Canada Technical Support engineer for the Robox.
www.hudsondesignlabs.comThat’s a good point. Perhaps if the gear was actually a cone with a small idler wheel attached to an arm resting on the already spooled material, then the rate at which the the spooling device reciprocated could be automatically adjusted?
On the other hand, the whole thing could be done with a couple of stepper motors hooked to an Arduino with the idler wheel arm connected to an optical encoder of potentiometer and then do the complicated mechanical stuff in software!
Working on IOT devices at www.hackittandbodgitt.com using the ESP8266 modules from Espressif
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