Jason
New Member
Posts: 17 
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Hotend
Oct 23, 2017 20:13:00 GMT
Post by Jason on Oct 23, 2017 20:13:00 GMT
Murphy and his Law struck yesterday morning.
I have an urgent job requiring printing for Wednesday, tomorrow. A prototype for a client.
Managed to print the top components of a three ish part glued assembly. Which is when my hotend threw toys out and broke. By broke I mean the PTFE tube twisted, blocked inside, thermostat wiring broke away slightly (probably my disassembly contribution).
It's interesting to note, possibly already mentioned on Thingiverse/here, the design that holds the hotend. No issues until now but the 'clamp' part that supports the hotend is, um, pants! (That's British for sh$t). The 'clamp' doesn't clamp anymore efficiently, I can shim it as a short term fix but it's not ideal.
It is what it is, so.....will replace with a new V6. I've ordered 4 Off them as back ups now.
Doesn't solve my need to complete the job for now but it's good to keep profiling the DP5.
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Post by kioskfan on Oct 23, 2017 21:48:19 GMT
 Dimitar Tanchev has designed this part, link I haven't made one yet but Dimitar says it will hold the hot end tighter and more accurately than the stock part. |
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Jason
New Member
Posts: 17
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Post by Jason on Oct 23, 2017 23:46:22 GMT
Thx Kioskfan, nice find.
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Hotend
Oct 23, 2017 23:58:58 GMT
via mobile
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Post by 3dprintingmeathead on Oct 23, 2017 23:58:58 GMT
Murphy and his Law struck yesterday morning. I have an urgent job requiring printing for Wednesday, tomorrow. A prototype for a client. Managed to print the top components of a three ish part glued assembly. Which is when my hotend threw toys out and broke. By broke I mean the PTFE tube twisted, blocked inside, thermostat wiring broke away slightly (probably my disassembly contribution). It's interesting to note, possibly already mentioned on Thingiverse/here, the design that holds the hotend. No issues until now but the 'clamp' part that supports the hotend is, um, pants! (That's British for sh$t). The 'clamp' doesn't clamp anymore efficiently, I can shim it as a short term fix but it's not ideal. It is what it is, so.....will replace with a new V6. I've ordered 4 Off them as back ups now. Doesn't solve my need to complete the job for now but it's good to keep profiling the DP5. If you are referring to a genuine e3dv6, you will find it is shorter than the v5 clone that comes with the printer. This becomes an issue with the bed leveling sensor. When I made this upgrade I had to slide the hotbed down to the bottom of the bracket and hold it there to print a new hot end mount. Unfortunately, with the plethora of clones out there, if you replace with a clone it's a crap shoot as to if it'll be the shorter v6 or the taller v5. You may be able to insert the new hot end into the old heat sink, which I would recommend trying if the replacement is the shorter v6 model. The printer is already set up for the longer body and the extra cooling fins never hurt. But if you are looking to upgrade to a v6, I made this a while ago and it worked well for my needs at the time. www.thingiverse.com/thing:2094546Under the remixed from, you will find a link to the x carriage it bolts up to. |
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Jason
New Member
Posts: 17
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Post by Jason on Oct 24, 2017 0:04:55 GMT
Thanks Meathead, that's great to know!
I've ordered from 2x different suppliers, guaranteed to be genuine fakes from them both. Now that you've raised this point I'II order a like for like replacement from DP5, then it fits to print whatever design I need for the v6's. I can design in cad to suit. Either that or I'II design and get it printed.
Thanks for the heads up Meathead!
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Hotend
Oct 24, 2017 1:08:02 GMT
Post by tanephar on Oct 24, 2017 1:08:02 GMT
Do you have any idea why the ptfe twisted? I have had a similar problem with PETG filament I was using, it was because there was a lump, as it were, in the filament, that jammed in the tube and then caused havoc.
The other thing worth noting is ptfe fails at temperatures above 240, I have been trying to find an all metal throat that would solve the issue of the tube breaking down over time.
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Jason
New Member
Posts: 17
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Post by Jason on Oct 24, 2017 3:39:28 GMT
Hi Tanephar, as per attached, heat appears to have gotten to the PTFE insert, distorting it. So could possibly be a build up/stuck filament. For reference: PLA, Temp 215°, been printing merrily for sometime. Drilled out built up filament in the hotend. Apologies for the photo blur! Attachments:
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Post by tanephar on Oct 24, 2017 11:08:34 GMT
Hi Jason, from the pic it looks like there has been a little thermal distortion at the nozzle end, this could be due to a jam, or just wear and tear on the part. The tubing does breakdown, and it seems it doesn't stop jams. I print PLA at 190°, with great results, that seems to be the sweet spot for me. Do you run PID autotune on your machine?
I made one of the parts that Kioskfan shared and it is not for the stock part, it puts it too low and you end up burying the nozzle in the bed, even with the sensor at full reach it is still a good 2mm too low, it would work well though for the E3Dv6, just thought I should share that.
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Hotend
Oct 24, 2017 16:03:09 GMT
Post by kioskfan on Oct 24, 2017 16:03:09 GMT
Hi Jason, from the pic it looks like there has been a little thermal distortion at the nozzle end, this could be due to a jam, or just wear and tear on the part. The tubing does breakdown, and it seems it doesn't stop jams. I print PLA at 190°, with great results, that seems to be the sweet spot for me. Do you run PID autotune on your machine? I made one of the parts that Kioskfan shared and it is not for the stock part, it puts it too low and you end up burying the nozzle in the bed, even with the sensor at full reach it is still a good 2mm too low, it would work well though for the E3Dv6, just thought I should share that. Which part? I'm starting to worry that soon there will be no two DP5/4 alike.  |
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Post by tanephar on Oct 24, 2017 22:29:25 GMT
The DMS DP5 Hot End Holder for E3D V5 and V6 from Dimitar, I thought it would be a good mod and so made one yesterday, fitted it last night with the stock Mk8 hot end that ships with the DP5, nozzle tip was a good 2mm below the proximity sensor, this would work though with the zianwei part and an endswitch, so no autolevel function. I don't think there are any alike now, I started modding mine from the moment I unpacked it,  |
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