Enhancements - PSU fan baffle

This one is very simple. I had read a number of articles which suggested that the placing of the fan on the PSU meant that it blew directly onto taller prints which could lead to print quality problems. 

I found a few solutions to this, but wanted to try my own. My solution is a very simple print which uses magnets to simply cover the fan and divert its output. 


This means that the design is completely non-invasive. There is no need to remove screws from the PSU, simply stick the baffle directly to the front and it does what's needed. Simple and effective!

If you want to remove the baffle, simply pull it off. 

The model for this is available at Thingiverse and Cults3D.






Comments

Post a Comment

Popular posts from this blog

SKR1.4 and TFT 35 - using long file names and print from SKR SD card

Image
This is a bit of a diversion from the rest of the blog, but it's relevant as it's on the same path. I felt it might be helpful to post this as I'd tried, unsuccesfully, to find a definitive answer elsewhere so got there by trial and error.  If you have an SKR 1.4 mainboard coupled to a BTT TFT35 (NB I suspect that this will also be relevant to other combinations of MB and TFT) and want to Enable long filename support Add the MB SD card as a print source This is what I had to do to get this working. There are two areas which need to be changed  CONFIG.INI on the TFT CONFIGURATION_ADV.H on the Marlin (2.X) build This solution is based around my configuration but is likely to be more generic, I think. I am running SKR 1.4 Turbo - Marlin 2.0.5.3 BTT TFT35 V3.0.26 Change Marlin Firmware You will need to create a new build, with the following changes in the configuration_adv.h file. First, you need to enable the onboard SD card as Then, to enable the long filenames change:  Remo
Read more

Sensorless homing and musings on Z-offset

Image
In a perfect example of irony, I have just decided to try sensorless homing - just a few days after finally having got around to releasing my designs for smoothed endstops .  The process turned out to be quite simple. I had some spare 2209 stepper drivers as the originals had had their diag pins removed in order to use the endstops. In fact, I had desoldered these rather than cutting them and even retained the pins, so I could also have simply resoldered the pins back into place. But, as I had the spare drivers, it seemed unnecessary.  Once the new drivers were installed, there were just a couple of changes to the Marlin firmware which I needed to make.  First was a change to enable the sensorless homing and to set default stall sensitivities.  The next change was to change the Endstop Inverting to false for the X and Y axes. Effectively, telling Marlin to ignore the endstops. I compiled a new version of the firmware and then installed it to the printer. Thereafter, it was necessary to
Read more

Update: delayed but not forgotten

Those of you following this blog will have noticed that I've gone a little quiet for a while. This is due to a combination of factors. First, I am very busy with work at present and, secondly, I have a backlog of things which I need to print for jobs around the house. I can't print with the printer at the same time as rebuilding it. To give an update on progress: I still need to rejig the X-axis cable chains to rotate them by 90° The fanless PSU seems to be working very well indeed and makes a huge difference to the noise of the printer The foam insulation on the base of the HBP also seems to help a lot and works far better than I'd expected. Heat up time is improved significantly and excess cooling between prints is also reduced.  I have a set of Z axis pull-rods to install for extra rigidity but these need to be modded to fit the 350mm Z height.  I also really want to move to the latest version of Marlin to address a few annoying niggles which I know are present in 2.0.5.
Read more