Hello,
We already called stratasys tech, but we are 700km from them and they won’t be able to come until October…
So here is the pic of vaccum tube and unfortunatelly there is material in it. Following the line, it doesn’t get to the pump in the front of the machine (it almost did, but now it is clean, see pic)
Now the printer is off, and I can’t run flush to let it off until october. I don’t know what to do…
You need to clean the vacuum tube going from head to the vacuum pump assembly. You may also clean the assembly itself, or replace the valves (just in case it’s impossible to clean). The problem usually comes from a clogged material or support material filter. It can also come from a clogged head: you need to print several times per week (even a small part), and also wipe the heads everyday with this technology.
Clean the tube again and remove the heads and clean them also, with pure IPA (no water mix). You can unclog the heads by using a syringe and force IPA through the nozzles: you have two holes and you need to close the other one with your finger. Use goggles and gloves!
Hello, thanks for your help! Can you help me with the process? Do I need any particular tool or device? Or just “unplug” the transparent tube from Head and pump? what should I use to empty de tube? pressured air? In our city we don’t have the spare parts from Humphrey Valves (I don’t know what models should I seek)
Hope you can help me,
Best!
Flush with IPA and then dry it with compressed air.
Can you send me photos please???
Any recomendations when detaching tubes? Will I need to seal when assembing again?
Thanks!
It looks like the Material doesn´t reached your Pump (lucky You).
Its not deep inside the tube.Unplug both ends and use a wire to loosen the harden Part of resin in there.
The Blow Air from the other side (vacuumpump side) in it and it will clean out.
At last you flush the tube manual with alcohol and dry it with air.
If you need a Tutorial on that or photos let me know
Finally tube from head to pump was clenaed out and empty (only air). Turned on again, but pressure keep low in 0.9. So we tested pumps and valves from “maintenance > actuators & sensors control”. It all seems to work ok. You can see model and support pump spin in the back. And Tac is heard when turning on waste pump and air and vaccum Valves. But the bad thing is that when turning on support pump, liquid begins to flow through transparent tube.!!
Any suggestions?? Thanks
Hi Jay, I solved it applying WD40 in the axis a couple of days, ans it got back to spin normally and get the 6.0 pressure. They do not sell this spare part as far as I know
Hi protoserie,
Sorry for reply late, I didn’t got the notification, or I close it - will check it later.
So far, what I done is to shutdown my Objet and clean the print head continuously, until the material and support not dropping.
I didn’t clean the vacuum tube from head to pump, not yet.
And the pump company - Gardner Denver - just like you say, THOMAS 30030533-4V is special OEM part for selling to Stratasys only.
So, back to what you say…
Can you tell me or show me some images, which axis is need to spay WD40 a couple of days?
It will be very helpful to me.
Thanks again for your kind reply, and have a nice weekend.
Best,
Jay
Hi,
in Dec 2017 the vacuum value of my Objet24 fall down sporadically to 4.1, goes up again, dowen up… Then I drove the machine head to service position, switched the print er OFF and did a reserch in the web. Fortunately I found this thread and especially the link to
it was very helpful. I deassembled the pump as shown there and cleaned it. Then I changed the ballbearing (absolute coincidence: I really had the fitting one). Additionally I’ve blown through all hoses, the vacuum equalization tank and vakuum filter (direction to the air inlet) with oilfree air pressure.
By the way I also unplugged the vac hose on the heads and put it into a little plastic bag (In the event that there would be material in the vacuum hose) and blew it through with oilfree air pressure. There was no material in it, lucky me.
While the unit was still outside the Objet, the Faulhaber motor was tested without and with pump (use 4V external DC-power on the GND and Motor pin on the controller of the vacuumunit, see yellow arrows) and it purrs like a kitten after cleaning.
Putting the unit back into Objet, connect vac hose from heads and also the connector with the ribbon cable. Switch on printer and - voila - the pump sounds clean an even. Vacuum-value is always between 5.8 and 6.0 thats absolutely OK.
FORGET THE GREEN ARROW IN PICTURE!
This post describes just my personal approach maintaining the vacuum unit on my Objet24 and every imitation happens at your own risk. This remark only to my security …
Good printing and a happy 2018
Edgar from http://www.etchit.de 73
