Super Glue Gun 02: Extruder Motor

We're making progress with the Super Glue Gun project, though we've hit a problem and we need your help! To push the glue sticks into the gun, we need motor control. For this we're prototyping with ATTiny24, Arduino, TRIACs, and testing different motors, such as stepper motors. It can be tricky, first the team have to identify how much power they use depending on how much effort it needs to turn, and control them using an Arduino. Unfortunately, there are unforeseen consequences! Let us know if you can help on the element14 Community.

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[maker_karen]

Thanks for your comments everyone. The reason we don't want to just drill out the gear is the intent of this build is to make a marketable product that can be manufactured. That means not manually modifying parts. If we were building just one, then drilling a 5mm bore into a 6mm bore would be the obvious solution. However, if we want to potentially produce these in large quantities in the future, we need to be able to source a ready-made part.

[FalcoTheImpaler]

Felix's reaction at 9:57 is just amazing. Never change, my dude

[pieface]

9:55. Felix contemplating if he gets paid enough to deal with this shit...

[bokkenka]

Ben (singing): A whole new squirrel...
Felix: Uh-huh.

[zealphanerd]

Ben, I see you ordered one of the IBM's that LGR got. Nice. What is your plan for it?

[sokauo]

Why don't you drill the gear to 6mm???

[RobertShaverOfAustin]

Great project. I was thinking it would be useful to have an electric powered pop-rivet gun. The manual ones are hard on the hand especially if you have a lot of rivets to set.

[DeviousMalcontent]

13:01 very curious to see what is in that IBM box, also Windows 95 and the GNU/Linux Source at the back lol.

[xanokothe]

How about adding a spring next to the bearing to push the filament agast the gear?

[wwShadow]

Isn't there some sort of 6mm to 5mm adapter? Or perhaps glue/weld the gear you want on the gear you have.

[saiblades]

i hope guys you put every project in separate playlist on utube coz some ppl will watch it as they want (not as they were posted) and send some greatings to Felix - he's a great guy (genius in some specific knowleges - he just need to know he is GOOD) keep going your great work

[Psyrecx]

If you're attempting to feed glue sticks, wouldn't using a rubber coated disc be better than a gear to feed it?

You could also put rubber on the bearing so both grip the gluestick and feed it evenly.

[MazeFrame]

9:11 Don´t you hate it when your Test Curcuit does not work?

[malgailany]

Ben, you can widen the 5mm hole of your gear with a 6mm drill bit. I've done this before and works fine.
Thanks.

[ForeverPimpinVideo]

Can you do a video series on soldering, I was removing the usb ports from the switch dock, and was having issues with my skills..

[fausergustavo]

I dont know if I get the problem right but ... if you put 2 guides one just before the gear and another just after the glue will pass with no problems using almost any gear....
because it wont bend any more, so no presure is lost ....
and to control the presure you could use an shunt an an ad converter to monitor the current on the motor that is directly the force so the presure...

[jonathanwagner]

Ben, Why didn't you include a hollow shaft DC motor in your set up, you could run the glue through the center and use a threaded barrel. Is it just because of the torque required?

[allluckyseven]

10:42 - Hmmm... I understand what Ben says here, but wouldn't it be better if you had both a tube before and after the bearing, AND also a V-groove bearing instead of a regular one?
11:21 - Day-zee, day-zee...

[dragonprism]

Maybe try using a remote bowden extruder, I realise this was mentioned earlier in the posts for keeping the material straight. But what not just use one, that way you have a ready made supply line for components as they are used in 3D printers to push filament.

[bryansiepert]

Have you guys considered using a larger heating element? Home built foam RC plane makers use a TON of hot glue and seem to prefer 200w guns to handle the larger volume of glue. The automated glue control on the Super Glue Gun combined with a larger heating element would allow for a much wider range of glue speeds and volumes than a smaller element would allow which could potentially lead to a wider market for the glue gun.

Food for thought.