Sunday, 4 October 2026

A few random 3D printed parts - ducted fan shroud, chuck guard and coolant screen base

While there's a bit of a hiatus on the TIG button front and an endless wait on the arrival of the laser welder, I knocked up a few items I've not quite got round to making so far.

Fan shroud:

The Shizuoka control cabinet has a fan on the front panel/door for cooling purposes. Obvs it needs to draw cool air in at one location and blow hot air out at another. In an almost logical fashion, I've got it set up so that the cool air inlet is at the bottom next to the fan and the hot air exhaust is at the top, just above the VFD. I had a filter lodged in the exhaust grille at the top but it wouldn't really be suited to keeping swarf and coolant out, if any actually came its way. I've been meaning to do something about this "for some time".


Without the filter, you can see right into the cabinet. Not ideal.

So I quickly knocked up a ducted shroud thing in Fusion to fit over the existing grille:


Printed it off in grey PLA+:


Fits nicely. Won't bother with any fixings or adhesive, as it's a nice fit and isn't likely to be dislodged.

Chuck guard:

The chuck on the 4th axis is getting splattered and slightly rusty. Also I'm probably getting swarf inside it due to the opening behind the chuck throat. Time to protect both:



Looks good to me.

Chip screen base:

Some time ago I bought one of these coolant / chip screens for use on The Shiz, to protect me from splashes of coolant and nasty hot chips - and potentially from flying fragments from broken cutters. It's a length of 3/4" Jeton coolant hose with a magnetic base and a piece of clear acrylic sheet about 200 x 300mm. Along with the rest of the coolant hose that was actually being used for coolant control, this suffered UV damage and finally the top (orange) segment became brittle and snapped off where the screen was attached.


So some months ago I made up a replacement that I printed on the original 3D printer. 

Stupidly I made the wall thickness rather thin where it had most stress, so not surprisingly it failed there, leaving me prone to getting splashed by coolant and burned by blue chips.



Time to make another one, this time a little more robust where it matters:


Here it is, fresh off the printer, cleaned up and ready for action. I used 100% infill for max strength:


Fits nicely and looks more robust.


Looks good to me:


Ah well, that was pretty quick and simple. The larger parts took 3.5 hours each to print and the screen segment took 70 minutes. All drawn up and made within the day. Good stuff.

No comments:

Post a Comment

Setting up Home Assistant on the RPi5

Home Assitant installation: Here's the RPi5 with the Compact M.2 hat alongside it. This "hat" is designed to fit inside that o...