It’s spoilboard planing time…
That reminds me:- SwingArm
There’s nothing staggeringly new about Prusa’s swing arm, but the execution is nice. I think the thing it illustrates well is that you don’t have to support the cable (or dust collection pipe) for its entire length - a short arm could work very well if ever you discovered just a little too much load on your vac shoe.
There is a swing arm. 
What about a floating dust shoe like i think @DougJoseph had designed for the lr3?
Why? Everything is working as intended.
I didn’t see that you solved the issue. I know my first cut doing the struts had my dust shoe high enough to still film the bit carving.
There are some longer TPU STLs floating around somewhere on the forum. Also making sure you don’t have more bit sticking out than you need helps tremendously for this and for rigidity of the machine.
Here they are. 
But then i couldn’t use the pretty ones i ordered from Ryan…
Problem Solved 
Just the tip… Argh. Was too greedy and went 2000mm/min at 12000 RPM.
A question I was asking myself: shouldn’t I be able to go a lot deeper than 3mm DOC? The load on the tip shouldn’t get any higher with an increased DOC, shouldn’t it? It’s always cutting the same amount of material, no matter whether it’s 3mm or 10mm DOC.
Maybe due to the chips not being able to evacuate quickly enough, so they started to compact and get harder than the surrounding wood. 
Nah, I know why it broke, RPM too low. The question is whether I could cut more at once. 
Very nice! Did you use a V bit or a tapered ball end mill? I bought some tapered ball end mills and have been looking for a project to test. I think one of the concerns I have is the difference in speed the flutes cut the wood near the tip versus at the widest part. Seems like spinning fast enough for the thin part creates heat near the visible surface. You seem to have found that balance really well!
I love the contrast in the piece. The left column adds a lot of interest and the name indicates a personal connection. Are these 3mm inlays?
Nah, 6mm holes and normally 5.5mm inlays. Those are 4.5 though.
I use a tapered endmill with 10.4° (the one I broke above), for bigger inlays I use a 30°. I run it at 2000mm/min, 3mm DOC and 24k RPM. With 12k the endmill broke.
I just found out that there exists a 3.175mm version of that endmill that is a lot cheaper (5 for 32€ compared to 20€ for one big one). Gotta get those and try more DOC. 
Since I have had problems with the X stepper skipping steps (because I am really testing the limits) I ordered a closed-loop stepper for X now (they just now had 3 in stock in Germany, I had set an alert ages ago). I am going to tell you whether that works or is complete and utter bullshit.
This is not Ryan‘s or the LR4‘s fault, my endmill was also dull and I went 3500mm/min with 6mm DOC in plywood…
Very interested to see what you think.