I’m sorry if I missed it somewhere, but I was just wondering if folks have found some bits to work better than others with the router? I’m assuming expressly marked bits for CNC (like this one) work, but otherwise are people just using up-spiral bits?
(The whole reason I was asking was to try and get a sense of the “resolution” or “position accuracy” — at least as an AI explained all the mathematics to me.)
Well firstly, welcome to the forum!
A) do you have a v1 machine or asking just in general?
B) most of our machines have routers, some have spindles. But for the most part we use 1/8 and 1/4 shafts.
Ryan has a few in the shop you can buy. Now for dimensions you can go by waht is on the package or most of us use calipers to measure.
Oh I missed the uncut question. If you take a minute to look around, you will see all kinds of bits in use here. Compression upcut downcut v bit etc. It all depends on what you are planning to do!!!
Misread the category!
Compass thread! 
That’s new for us @JCBerger. We often assume it’s about the LR or Primo without reading the category…
Hahahah thanks for the input guys. Honestly a lot of the same best practices for V1 CNC machines apply here too. You want to use a tool that will minimize the loads on the machine so that you get better surface quality and less pushback when moving the router around. I’m not an expert at CNC best practices, but I like to use a 1/8" shaft so that less material is being taken away at once, and thus lower loads. I use a standard upcut for a lot of my stuff, but I think others might have some better advice as to specific bits. V groove bits are also great for engraving, as well as ball end bits for smoother contours and 3D contours
Haha, no worries!
Thank you!
Thanks, Cam! So are you using a Dremel, or are you using some collet adapter to use a ⅛” shaft on the Makita (or clones of) routers?
I don’t know what Cam’s using, but you can buy an 1/8" Makita collet from the guy hosting this site.
I used a Dremel for a while on my first prototype, but tbh would not recommend it lol. That’s just all I had at the time. A Makita or a solid clone does the job beautifully. I use the Carbide3D ER11, because it has ER11 collets (which are pretty common for CNCs) and is heavily discounted 
@jono035 , this is the shortest message I have ever seen you write. 
@JCBerger , welcome to the club. Make sure to do a thread on your build and projects. I’d love to follow along. Best of luck!
I wrote a massive treatise and it got pointed out as mostly pointless, so I shortened it 
