[Upcycle It] Interactive Race Car Driver - No more printing

RE: [Upcycle It] Interactive Race Car Driver - No more printing

bwelsby — Mon, 29 May 2017 14:16:11 GMT

Really sorry to hear about the print head, it does look like a complicated (expensive) component. Glad to see the engineer in you come up with a backup plan!

If you are desperate to have something 3D printed then PM me the STL files and I will see what I can do.

Brian

RE: [Upcycle It] Interactive Race Car Driver - No more printing

mcb1 — Mon, 29 May 2017 09:04:53 GMT

I only got one word to say.

https://www.youtube.com/watch?v=cbBx4Ql6Umo

RE: [Upcycle It] Interactive Race Car Driver - No more printing

Workshopshed — Mon, 29 May 2017 08:49:05 GMT

Have put a ticket in with CEL, let's see if they can fix it for less than a new one. Definately beyond warranty which was 100 days or 100 printer hours both which have been exceeded. Also my bodged repair would not held with a warranty claim.

RE: [Upcycle It] Interactive Race Car Driver - No more printing

jasonwier92 — Sun, 28 May 2017 20:28:36 GMT

Way to work plan B and get it done. I like saving scraps from a project. Never know when you have to do plan B, but the perfect material was in the landfill.

RE: [Upcycle It] Interactive Race Car Driver - No more printing

Workshopshed — Sun, 28 May 2017 19:34:48 GMT

As hideous as those nozzles look those are not the problem. They did print ok at one point this afternoon. The issues is that there is a LOT of plastic behind the heads where the mechanism is to switch the nozzles. This stops the mechanism moving and hence selecting a nozzle, hence the message.

Here's some stock photos of a variations of this head, it's that space between the stepper and the nozzles that is full of plastic.

[View:/resized-image/__size/284x172/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-bbd488ff-a631-4b66-a4d0-e2a5fa60002b/0842.contentimage_5F00_184501.jpg:284:172][View:/resized-image/__size/272x148/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-bbd488ff-a631-4b66-a4d0-e2a5fa60002b/3175.contentimage_5F00_184502.jpg:272:148]

I don't believe a seal was blown as it was printing ABS quite happily for a couple of hours after it was printing the PET. There was also no black ABS in the plastic I was removing. The problem must have started when it cooled down after that session and the PET set hard. The print head is 2.5 years old so I'd suspect beyond any warrantee.

The smoke and flickering light before the temperature sensor stopped working were a really bad sign. I'm not saying that it's a complete right-off but it's not going to be running this week. Perhaps parts for my next upcycling project?

RE: [Upcycle It] Interactive Race Car Driver - No more printing

DAB — Sun, 28 May 2017 18:56:50 GMT

Yes, there is nothing sadder than being ready to do some making and have your primary tool fail.

It kind of kills the mood.

DAB

RE: [Upcycle It] Interactive Race Car Driver - No more printing

rachaelp — Sun, 28 May 2017 18:05:50 GMT

Despite various attempts to remove the plastic from using the purge cycle to heat the head and tweezers to using a soldering iron to carve through the plastic, I could not remove it.

I hope you haven't wrecked the tip of your soldering iron doing that.... burned plastic usually leaves a horrid black surface which is very difficult to clean up and makes solder not stay on the tip.... I had a contractor who I employed once do something like that to a Pace soldering iron we had and I had to buy new tips as I just couldn't get the surface cleaned well enough to solder properly....

RE: [Upcycle It] Interactive Race Car Driver - No more printing

dougw — Sun, 28 May 2017 16:51:49 GMT

I once had some kind of blown seal in my Robox head and filament was coming out in places it shouldn't. It was not obvious what was happening because by the time I realized something was wrong, there was too much plastic to see where the problem was. The manufacturer replaced the whole head for free and it has been fine since. Thanks CEL.[View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-bbd488ff-a631-4b66-a4d0-e2a5fa60002b/contentimage_5F00_930.png:16:16]

..... So check with CEL ....

RE: [Upcycle It] Interactive Race Car Driver - No more printing

balearicdynamics — Sun, 28 May 2017 15:54:32 GMT

As far as I know, these are just the nozzles to be replaced. No need an entire printing head...

If you can unlock at least one, just check the thickness and you can ket sets of 5 new one for very few dollars from Amazon (I always have some in my boxes). A key M3 if I am not wrong should be used to unlock. When the nozzle are locked due the fused filament (out of place) I suggest to use the hot air of the soldering unit set at the proper temperature (about 120 C for PLA and 210 C for ABS). As you see that the plastic start fusing, stay ready with the key or a clamp to unlock the nozzles. then at least you have a better vision of what's inside. It is rare that the head is totally broken.

Enrico