Hi everyone, got my kit a while back now. Based in Scotland and the summer has been amazing so no time for tinkering in the shed.
After reading lots of posts I sourced a 3m length of unistrut with a few fixings, which was definitely the way to go. I mounted the motors on each end and fixed to the workshop trusses at a 12.5 degree angle. I then added some framing made from OSB angles (basically ripped 18mm OSB and joined on to make a right angle, with glue and pockethole screws so they are super stiff) - only two just now but will add a couple more to add stiffness to the middle. These are just screwed into the same trusses as the unistrut is attached to.
I just completed my sled (a modified version stock sled to accommodate a couple of 2.5kg cast iron weights, also made in OSB) today after doing a few test cuts with my square temporary MDF sled. I’ve had to shift the weights out a bit to get the COG correct as i can’t reduce the height of the ring due to the router i’m using. The advantage of the weights I thought would be they could just be lifted off to reduce weight before removing the sled.
I’m using a Bosch GOF 1600 CE router which isn’t quite a good at fitting in the ring as i’d hoped. It’s a great router and very powerful and stable compared to what I’ve used before. It does come with two bases which is handy so i can take it out of the Maslow and still use as normal. I’ve had to removed the handles, but this is made slightly complicated as Bosch in their wisdom have put the power switch in the handle, but a little jiggerypokery with some insulating tape and just use the switch on the wall. It is an extremely loud router though, and i suspect the straight bits that i’m using don’t help - I’m waiting on an upcut spiral bit to arrive some time this week.
Z-axis is not fitted yet, had a slight mis-measure of the coupler so waiting on ebay package with the correct size…
This is my first foray into CNC and i have to say I’m pretty pleased with the results so far. I’ve a done a few test cuts so far and very impressed with the accuracy. I did a 35mm pocket (to replicate drilling a 35mm concealed cabinet hinge pocket) and it came out at 34.7mm on first attempt and very round as far as i could tell with my cheap calipers.
Any ideas on how i could improve my setup would be happily received. I’m probably going to put a skirt all the way round in OSB as well so i can go right to the edges.