Ytec3D Forum

Lets apply science to the HP45 IMG_20160608_194845.jpg I did something I wanted to do for a while now. Test the thermal sense resistor. To do this, I got a multimeter, a DS18B20 temperature sensor, a cup of hot water and 2 HP45 printheads. One unused and with a sticker on the head, one I did all the...

I have thus far read about half. It is really interesting to read the entire process from idea to machine with all of the technical decisions in between. The head that is linked is basically the older brother to the C6602. It is identical in specs and ink deposition hardware, only the ink tank hardw...

A glide rail is something I consider. On the Oasis page I first tried a conventional gantry. It actually works fine, and is easier to make, but powder printing is incredibly messy, and any guide rail and timing belt is one to keep clean. The floating (cantilever) gantry was a suggestion by Wonko so ...

Short weekend report. It was really hot so I got less done than I wanted, but I did some small things. I did some detailing on the 3D design with the floating gantry. All seems to work out. I recon I need a dozen so more hours to get this design detailed enough for production. The only major part le...

The L6452 is not on this board, this one is still the older design with TLC59213 and MIC5891 chips. I have not yet had the opportunity to test the L6452 chips, and will not be able to for a few more weeks. This one will be the first controller. It has more or less the same features. The final width ...

This will be more or less the final design. I will test it this weekend. It requires both a 5V and a 3.3V line, but it handles 3.3V logic (as well as 5V logic). I still need to add the component labels and do a final routing check, but other than that I am done. I will verify the design this weekend...

I do not know if I can do the recalculations required on the fly. I can probably do them when I am exporting the data from the SD card to the SRAM buffer (at the expense of extra time). For the longer term future, I am sure I can figure out a good way to implement broken nozzles into the firmware. I...

I might do .4 or .6mm nozzles with .3mm or .4mm layer heights. I do not mind if a print lasts 40 hours in this case. The thicker layers I have, the more I need to post-process in the end, risking damage and adding weight (filler). An Ultimaker Cartesian is actually quite similar to core-xy, with no ...

My own experiences with deltas thus far has been problematic. All I remember about them is being a disaster to calibrate. If I do find the courage to work on one again, I will call upon your wisdom. I was planning on a scaled Ultimaker like design. The bed would be supported by 3 guides and lead scr...

The nozzle condition test is so common that the HP45 printers have it (and will prevent printing if nozzles are broken) and that the L6452 printhead driver has a constant current source to check the condition of nozzles. On my own tests I used a constant voltage and measured how much power passed bu...