As I described in the post about making the compressor intake, the gibs took a beating with all the vibration. The gibs on the mini mill, especially the X-axis, leave a lot to wish for in the best of situations. The problem is that the adjustment screws, which are “dog point” set screws (which means …
It’s been a while since the last mini mill post. I’ve taken the table off a couple of times to clean out chips that get in under the gibs and re-grease the ways, but it should be clear from the relatively large number of posts of stuff actually made with it that it’s been running really …
Continue reading ‘CNC Mini Mill #12: Streamlining Tool Changes’ »
It’s now been almost exactly 2 years since the last post about the weatherstation I built and put up outside the house, so I thought it would be good to talk about how it’s worked out. In general, it’s worked well. However, a few things are showing their age: Over the past few months, the …
The last post described how the injectors mount into the throttle bodies. The next step was was to get fuel to their upper parts. This is commonly done by using a “fuel rail”, in which fuel is pumped past the injectors, to the fuel pressure regulator, and then returns back to the tank. By having fuel …
Continue reading ‘Microsquirting the NC30, part #18: The fuel rail’ »
The throttle bodies I’m using originally used a different brand of injectors than the Bosch EV6 ones I’m going to use. Most injectors need a 14mm diameter hole, so that was not a problem, but the hole was too shallow to allow the EV6 injectors to seat fully. Thus, minor surgery on the throttle bodies …
Continue reading ‘Microsquirting the NC30, part #17: Mounting the injectors’ »
In the last post, I described the machining of the throttle body adapters. Once those were done, it was time to move along to make some brackets to hold the throttle bodies in position. Since it is a V-4 engine, the two rows of throttle bodies are at an angle to each other. They are …
Continue reading ‘Microsquirting the NC30, part #16: Mounting the throttle bodies’ »
It’s been a while since the last post on the NC30 EFI conversion. I was concentrating on getting the CNC mill up and running so I could make some parts. As you may recall, I had designed a bunch of little pieces for holding the throttle bodies and attaching them to the airbox that would …
Continue reading ‘Microsquirting the NC30, part #15: Production’ »
My computer’s graphics card (an ATI 5870 from 2010) finally died, the monitors started going black after a few minutes of use. Time to get a new one, I guess. The only hitch is that my computer is water cooled (there’s a page describing this project on my old, now-defunct online photo album) so a …
It seems like every time I conclude with saying the mill is now operational, I realize there’s something else I want to improve. After making the new air spring bracket, I finally wanted to fix the air spring scraping against the inside of the column. This would require making a new bottom mount for it, …
Continue reading ‘CNC Mini Mill #11: A little more work on the air spring’ »
As I mentioned in the last post, one of the things I wanted to make was an improved bracket for the air spring that takes some of the weight of the spindle. The stock bracket is a ~300mm long, 10mm diameter steel rod, mounted with two M6 screws on the side of the spindle, threaded …
Continue reading ‘CNC Mini Mill #10: A better air spring bracket, and some tweaks’ »