Project Beaver

[OMLCNC]

So while waiting for the resin bed to set I have been making up the gantry, z, y and x carriages etc.
Not having very good marking out equipment, (surface plate, vernier height gauge etc) I decided on using a wooden indexing type table on my pillar drill. This is because I can plane wood to accurate thickness. Then you mark the first point and drill, then index around this point using accurately planed pieces of wood, adding or subtracting them. Making sure you get all the swarf out of the way. Sorry if this has already been done by someone on the forum but I’ve not seen it. Thought it might be usefull

[OMLCNC]

So just finished fixing the x rails onto the resin bed, 3 weeks after pouring. Many ways to fix the rails I read on the forum. I went for a straight edge (Probably not) ally 50mm box section. Clamped to side of bed then spaced 30mm to side of rail using lengths of 30mm diameter bar. This positions rail in centre of 80mm box section (30mm + 20mm rail +30mm =80mm) Clamped rail, drilled and taped each hole then moved along a hole at a time. Second rail repeat process and checked and adjusted gantry, to make sure smooth running and no nasty noises. Checked with DTI.
We will see what its like when I cut something in the future.

[OMLCNC]

So more or less finished massive thanks to Dean for all his help and the Forum for all the information – pictures of anything being great – when your studying the detail.

Some changes to the original design being the 50 x 50 x 200mm ball screw housings because of the
problem of getting at screws on the original RM2020 Housings.

Just drilled and fixed the mdf bed down and surfaced it – its a learning curve, you have to move at
fast speeds and feeds to prevent burning (1500mm/min and 24000 rpm)

Guard for the end belt and cover for the Z axis to fitted, plus a dust shoe to be made or purchased.
Extraction system to be fitted and probably a vacuum plate.

Now to get to grips with Mach3 and do some CAD drawings.
I have a queue of neighbours and friends wanting house signs – I'd rather eat worms than do them, but SHMBO will make me.

[JAZZCNC]

Looking good Robert and turn up the wick 1500mm/min is still way to slow double that and then some. You've Plenty of Oh-shite buttons so you'll be ok.

[MikeyC38]

So more or less finished massive thanks to Dean for all his help and the Forum for all the information – pictures of anything being great – when your studying the detail.

Some changes to the original design being the 50 x 50 x 200mm ball screw housings because of the
problem of getting at screws on the original RM2020 Housings.

Just drilled and fixed the mdf bed down and surfaced it – its a learning curve, you have to move at
fast speeds and feeds to prevent burning (1500mm/min and 24000 rpm)

Guard for the end belt and cover for the Z axis to fitted, plus a dust shoe to be made or purchased.
Extraction system to be fitted and probably a vacuum plate.

Now to get to grips with Mach3 and do some CAD drawings.
I have a queue of neighbours and friends wanting house signs – I'd rather eat worms than do them, but SHMBO will make me.

Congratulations on completing the build and doing your surfacing. Dean is right about the feed and speeds. I surfaced mine at 15000 rpm and 3000 mm/min at 0.7mm doc and it was fine using 1.25 inch dia bottom clearing bit. Love the cabinets and the neatness of everything!

[OMLCNC]

Congratulations on completing the build and doing your surfacing. Dean is right about the feed and speeds. I surfaced mine at 15000 rpm and 3000 mm/min at 0.7mm doc and it was fine using 1.25 inch dia bottom clearing bit. Love the cabinets and the neatness of everything!

Thanks, its not that neat when you study it closely (and compared to others on the forum) but should do the jobs I want. If I turned the camera around you would see the normal total devastation in the workshop, I'm too busy making stuff to tidy up and I'm sure its a medical condition.

Like you and Dean say, I will try more feed next time. Being a novice it took me a while to realise that you could vary the speed and feed while running the programme in Mach3. The doc (depth of cut?) was 3mm max.

[Davek0974]

I'm sure its a medical condition.

Nah, it's pretty normal ;)

[Nickhofen]

I read the whole thread at once, grate build and nice machine!!!
Have you make sawdust, or experiment with aluminum cut yet?