So Ive been chasing problems on my printer and finally fixed almost all of

3D Printing
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So Ive been chasing problems on my printer and finally fixed almost all of them. My last problem I’m having is my hobbed bolt keeps striping out my filament. Ive tried loosing it up and tighting it up and cant seem to get it to stop. I have a gregs wade extruder setup. My only idea at this point is that maybe my hot bed is to close to the extruder tip causeing to much back pressure. It does fine on the first layer but once it starts moving faster it seems to strip out. Any ideas.

Also on a side note was wondering how often you should change your kapton tape on your hot bed.

Thanks

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If it’s slipping after the first layer you are getting more resistance from your hot end than the bolt can accommodate for. Usually the solution is to dial up idler tension, but if it’s a self hobbed bolt, it might just not be very good at gripping the filament. Might be worth posting a photo of the extruder and hobbed bolt.

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Ive been using this bolt for about 8 months now without any problems. A piece of my extruder started to break so I had to replace it but I’m still using the same bolt. Also same filament when I wasnt having any problems. My temp is also 240C so its hot enough

4

Have you turned up the print speed?

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I have but only by 10 mm/s for each setting from the default in slic3r

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Any change to firmware ?

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yes I upgraded from sprinter to marlin

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Make sure your old speeds etc are the same from sprinter in marlin. There is a program that compares the two files I just can’t remember the name for my life

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I never changed the speed settings in the marlin firmware. Ive only been changing them in slic3r.

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Yes you need to change marlin to your old setting from sprinter.

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Have you calibrated your firmware e-steps?

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http://www.tareeinternet.com/scripts/comparison-tool/

That’s an online tool I just found that may help you out

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Turn up the heat, Maybe the heat can’t keep up with the fillament flow. Mine does that sometimes. On short passes it is fine but on a long pass the hot end cools somewhat and the hobbed bolt starts to strip some. If i turn up the heat it fixes it.

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Agree with @Wayne_Friedt , watch your nozzle temp, your bump in speed after the first layer may be drawing too much heat off the nozzle for your Jeter to keep up with. Have you auto tuned your pid control? I think the command is M105. I had a similar issue when I added a fan, the nozzle temp dropped and the filament bound up. As for kapton, I leave it on until it tears, just be sure to wipe with alcohol between prints