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  • Replies 22 replies
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  • tbhs
  • design process
  • super glue gun
  • community feedback
  • anti-drip
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  • auto extrusion
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Related

Super Glue Gun Progress

makerkaren
makerkaren over 7 years ago

This week we're back to working on the Super Glue Gun. We've reviewed many of the comments and suggestions posted here on the Community and are factoring them into our design.

The first thing we are addressing is the motor location. Ben originally had the motor positioned so that it was sticking out the side of the gun, making the gun unevenly weighted. I suggested that we move the motor into the handle with the gear facing upwards to make the design more compact. While this solved some bulk and balance problems, it created new issues of the motor interfering with the auto stand and the trigger. Our new idea solution is in the photo below.

image

The proposed modifications here would also help another issue brought up by a community member, f5kn. We had the motor set farther back near the handle. However, this would make it so that there would be a significant time where the glue stick that was actively being melted would be past the point where it would be engaged by the motor gear, making the anti-drip function useless. By shortening the feed tube on the hot end and moving the gear as close to the hot end as possible, that drastically reduces the amount that the active glue stick would not be engaged by the gear. Hopefully negligible enough to not be too much of a design flaw.

We also want the end of the nozzle to be long and narrow to reach into tight places. We're hoping that by adding on a nozzle as shown, rather than having the normal small cone at the end of the plastic casing, will be enough to achieve that design feature. The concern with this is, will the smaller hot end be powerful enough to melt the glue within the the nozzle from a cold start.

Other suggestions we received said to make the stand mechanical and spring loaded rather than electrically extended and retracted by a servo. Others say to eliminate the stand all together in favor of a holster or cradle, or simply going cordless, using a heavy battery at the base as a stand like a cordless drill.

 

At this point in the design process, we're looking at, "What makes our glue gun better than what is on the market?"  Can we keep enough features in the gun to warrant making an entirely new product? Moving forward, we turn to our community members for help.

 

What features would need to be in the Super Glue Gun to make you want to buy it?

 

Our key features are the auto extrusion and anti-drip. Are those features alone enough?

Does it need an electrical auto stand? Or is a spring loaded stand, or is no extending stand a better solution?

Should it be battery powered and cordless?

Should it have an LED indicating when the hot end is up to temperature?

Should it have an auto-shutoff timer so it can't be left on accidentally for too long?

Are there other features we haven't considered that if included would convince you to buy such a product?

Should it use 1/4" mini glue sticks or does it need to have a larger capacity?

 

Please share your ideas and opinions below!

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Top Replies

  • shabaz
    shabaz over 7 years ago +5
    I've not used one in a very long time, but my main memory of it was the dripping Maybe some LEDs to illuminate the end would be awesome - usually the end was chunky, so you couldn't sometimes see where…
  • mcb1
    mcb1 over 7 years ago in reply to makerkaren +3
    heating elements require so much more power Proper engineering principles apply here. You need to understand what you're dealing with before creating a solution. What is the power demand? How long does…
  • dougw
    dougw over 7 years ago +3
    I'm not sure what has been suggested for this in the past so excuse any duplication, but how about: an auto-loader that can add in a new glue stick seamlessly as the old one gets depleted. adjustable temperature…
Parents
  • genebren
    genebren over 7 years ago

    This is pretty cool!

     

    Our key features are the auto extrusion and anti-drip. Are those features alone enough?

    These are great features.

     

    Does it need an electrical auto stand? Or is a spring loaded stand, or is no extending stand a better solution?

    I am not really sure what the auto stand is.

     

    Should it be battery powered and cordless?

    This should be doable, but I am not sure it is completely necessary.

     

    Should it have an LED indicating when the hot end is up to temperature?

    I like this, but only if it is accurate.  Again, not sure if it is a must have.

     

    Should it have an auto-shutoff timer so it can't be left on accidentally for too long?

    This is a good safety feature.  This might be a must have.

     

    Are there other features we haven't considered that if included would convince you to buy such a product?

    Not sure.

     

    Should it use 1/4" mini glue sticks or does it need to have a larger capacity?

    1/4" should be fine (I prefer these smaller ones).

     

    Good luck!

    Gene

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  • genebren
    genebren over 7 years ago

    This is pretty cool!

     

    Our key features are the auto extrusion and anti-drip. Are those features alone enough?

    These are great features.

     

    Does it need an electrical auto stand? Or is a spring loaded stand, or is no extending stand a better solution?

    I am not really sure what the auto stand is.

     

    Should it be battery powered and cordless?

    This should be doable, but I am not sure it is completely necessary.

     

    Should it have an LED indicating when the hot end is up to temperature?

    I like this, but only if it is accurate.  Again, not sure if it is a must have.

     

    Should it have an auto-shutoff timer so it can't be left on accidentally for too long?

    This is a good safety feature.  This might be a must have.

     

    Are there other features we haven't considered that if included would convince you to buy such a product?

    Not sure.

     

    Should it use 1/4" mini glue sticks or does it need to have a larger capacity?

    1/4" should be fine (I prefer these smaller ones).

     

    Good luck!

    Gene

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  • makerkaren
    makerkaren over 7 years ago in reply to genebren

    The auto-stand idea was to have a stand that extends from the front of the gun. There was to be a touch sensor on the trigger so that when a finger was over the sensor, the stand would automatically retract out of the way and then when the finger is off the trigger, the stand would automatically go down again.

     

    We made a discovery with designing out anti-drip feature in that we can relieve the pressure behind the melted glue, but don't have a good way to make it retract beyond that. So it may drip less, but it could still drip. image

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  • genebren
    genebren over 7 years ago in reply to makerkaren

    Thanks for the clarification on the stand.  I really do like the anti-drip concepts.

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  • beacon_dave
    beacon_dave over 7 years ago in reply to makerkaren

    If it is still going to drip with the anti-drip feature, then perhaps you need to consider an automatic drip capture feature that swings out and is ready to catch the drip as you release the trigger ? This perhaps could be incorporated into the auto-stand mechanism.

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