Search found 34 matches

by Philipp
Wed Jun 15, 2016 6:59 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2902965

Re: Hacking the HP45

Hello Dragonator,
electronic components have a relatively high deviation from the nominal values. I would imagine that some FETs open at 5V, others have not. Then your measurement results are pure coincidence.
Strange is that you measure a resistor and other components affect the measurement.
by Philipp
Tue Jun 14, 2016 7:12 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2902965

Re: Hacking the HP45

Hello everybody, thank you for your explanations. I have also understood as you have explained that. However, something is unclear to me how the 10x resistance can describe the offset of the temperature sensor. When the 10x is a discrete resistor which is incorporated in the production, there is no ...
by Philipp
Mon Jun 13, 2016 6:42 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2902965

Re: Hacking the HP45

Hallo, DigitalShadow mentioned on page 5, such a function and relates to one of the HP patents. If I have understood correctly, the temperature is very important as the point for the release of a drop entscheident depends on the ink temperature. It does initially the enthalpy of vaporization can be ...
by Philipp
Sun Jun 12, 2016 1:01 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2902965

Re: Hacking the HP45

Hello, Could it be that you've made a measurement error or allocation failure nozzle 4 and nozzle 5? I try to think without limitations where used to the R10X: Could the R10X be used to keep the power consumption of the printing head constant? Could it be used for level measurement of ink? Could the...
by Philipp
Sun Jun 12, 2016 10:45 am
Forum: 3DP printing
Topic: Oasis 3DP printer
Replies: 41
Views: 124835

Re: Oasis 3DP printer

Hello,
I am no friend of crossing belts, which increases the wear and degrades the efficiency.
It is easier to couple the two belts with a third.

Best wishes
Philipp
by Philipp
Thu Jun 09, 2016 4:09 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2902965

Re: Hacking the HP45

Hello, this is very interesting, unfortunately I can not recognize the reference measurement in the document. Would it be possible to mount the document in original? As I understand, the R10X as a reference for the line losses, to identify and compensate in the controller. It can be compensated as w...
by Philipp
Fri Jun 03, 2016 1:46 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2902965

Re: Hacking the HP45

Hello I would prefer these sensors, I have had good experiences with it. http://www.megatron.de/en/products/hall-effect-singleturn-rotary-encoder/contactless-hall-effect-encoder-series-eni22-ecoturnR.html They are not too expensive. Alternatively, there are also optical sensors. Linear encoders are ...
by Philipp
Fri Jun 03, 2016 6:45 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2902965

Re: Hacking the HP45

Hello Dragonator, that's great. I wonder if everything works as it should. I am not ready with my project yet. It will take a few weeks until I can do the printhead installing for the first time. I am very excited about the L6452, if this function, the board is considerably narrower. Then the cascad...
by Philipp
Mon May 30, 2016 8:20 am
Forum: 3DP printing
Topic: Oasis 3DP printer
Replies: 41
Views: 124835

Re: Oasis 3DP printer

Hello, I think with the belt tribes is not so difficult. There is no relative motion between powder and belt, which is good in principle for the process. The belts run in a groove, and are connected to the piston, so they act as a feather key. Maybe you can install a magnet in the piston, and can mo...
by Philipp
Mon May 30, 2016 7:37 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 757
Views: 2902965

Re: Hacking the HP45

That's great. I would be interested how you plan the architecture of your control. I'm always a friend of modular systems because they allow more degrees of freedom. Single print head, multi colour, cascaded print heads .... I would also be interested in how you want to synchronize the position of t...