Blob occasionally g...
 
Notifications
Clear all

Blob occasionally gets stuck in mechanism


David van der Bokke
(@dvanderb)
Active Member Customer
Joined: 3 months ago
Posts: 6
Topic starter  

So I have the mechanism calibrated and things work for N changes(where N is any number.. could be 10.. could be 80) and then I'll get a blob that sticks in the mechanism and causes further issues.  Is this due to improper cooling(eg should I cool longer?) or is there any other suggestions?

Thanks


Quote
BigBrain3D
(@bigbrain3d)
Supreme moderator Admin
Joined: 3 years ago
Posts: 351
 

@dvanderb

Blobs have 2 requirements 1)stick during creation and 2)pop-off when cool. The 2mm wide kapton strip on the metal tack provides the right balance stuck just enough. But the blobs have to be placed in the center(ish) of the tack on the tape and be squished down(ish), you don't want it too squished or the nozzle will get stuck, and you don't want it too high or the blob will be too hight to clear the gap between the tack and the guard. I'm not sure which is happening but 80 is too few to get a stuck blob. It should be in the thousands so something is wrong.

Can you attach a video of a blob being made?

 


ReplyQuote
David van der Bokke
(@dvanderb)
Active Member Customer
Joined: 3 months ago
Posts: 6
Topic starter  

So when I got home to look at the mechanism I saw that the kapton had come off which is probably the problem. Any suggestions on getting it secured well after wrapping it to the bottom?


ReplyQuote
BigBrain3D
(@bigbrain3d)
Supreme moderator Admin
Joined: 3 years ago
Posts: 351
 

@dvanderb

sorry for the late reply, the forum has been down.

Try to touch the sticky side of the kapton as little as possible. I suggest using a pair of metal tweezers to hand it.

Make sure the kapton is straight, and wraps all the way around, to stick on itself. That should keep it in place. It sticks very well to itself.


ReplyQuote
Share: