New build with recycled parts on a ridiculous budget 120cm*60cm work area

[Clive S]

Does anyone know how the stall protection works? Looking at the manual it sets a pin high until power reset? in which case I could make it work with the Arduino but got a breakout board and a core duo with a parallel port to run linux cnc on.

Why would you even consider an Arduino What are you going to drive it with? Remember a simple BOB will only have 5 inputs. You will need two for slaved homing that means three left unless you put two PP's in the PC.

Going to solder my wires to extend them and make sure the soldered points do not move!

What wires?

[Desertboy]

Why would you even consider an Arduino What are you going to drive it with? Remember a simple BOB will only have 5 inputs. You will need two for slaved homing that means three left unless you put two PP's in the PC.

What wires?

My nema 23 wiring isn't long enough so need to extend it was intending to make sure the soldered connections don't have stresses on them, I was going to use an arduino originally and I will connect it up just to make sure all the axis are moving properly whilst I'm waiting for the AM882's.

Some of my nema's have plugs crimped onto them so I could test the motors but will cut the plugs off and solder the wires.

[Clive S]

My nema 23 wiring isn't long enough so need to extend it was intending to make sure the soldered connections don't have stresses on them, I was going to use an arduino originally and I will connect it up just to make sure all the axis are moving properly whilst I'm waiting for the AM882's.

Some of my nema's have plugs crimped onto them so I could test the motors but will cut the plugs off and solder the wires.

Are they 4 wire or 8 wire steppers

[Desertboy]

Are they 4 wire or 8 wire steppers

All 4 are 4 wire steppers

[Clive S]

All 4 are 4 wire steppers

ok that's a shame because the coils will be probably be wired in series. 8 wired one's can be wired both ways.

[Zeeflyboy]

I assume the stall protection is automatic in the driver... I don't have the AM882's but mine just does it all automatically - The only extra wiring to consider is the alarm wiring that then lets the motion controller know there has been a fault so that it stops rather than tries to carry on with an axis dead.

[Desertboy]

I assume the stall protection is automatic in the driver... I don't have the AM882's but mine just does it all automatically - The only extra wiring to consider is the alarm wiring that then lets the motion controller know there has been a fault so that it stops rather than tries to carry on with an axis dead.

Looking at the AM882 manual this does look to be the case, which drivers have you got?

[Desertboy]

Are they 4 wire or 8 wire steppers

If I find them underpowered (3 of them are 2nm and the one on the Z axis is 1.6nm) I'll replace 3 of them for the X&Y with 8 wire nema 3nm+ nema 23's and swap one of the 2nm onto the Z axis.

That can wait for me to build it up now, too many other things to spend money on in the short term lol it's a never ending hole

If I find it works ok though I probably won't upgrade and start thinking about making router No.2 the one I actually wanted to make in the first place lol but decided to make a simple test router first to get and idea of what I'm doing. Also need that vac forming machine ;)

[Clive S]

If I find them underpowered (3 of them are 2nm and the one on the Z axis is 1.6nm) I'll replace 3 of them for the X&Y with 8 wire nema 3nm+ nema 23's and swap one of the 2nm onto the Z axis.

i think that they will be under powered especially if you are using R & P

[Desertboy]

i think that they will be under powered especially if you are using R & P

I'm using 1604mm ballscrews (twin) on the Y, and 1605 on the X and Z. I want to build an 8*4 soonish and I think I'd like to use R&P on that for speed but since then I found you can buy commercial 8*4 routers relatively cheaply at auction or on ebay which make building one a lot less attractive.

When I bought the ballscrews I didn't know what 1604 and 1605 meant lol in retrospect I would have gone with 2010's as the price difference wasn't a lotbut then of course I definitely need the bigger motors I see cnc4you do a 4nm nema 23

https://www.cnc4you.co.uk/Stepper-Mo...-03-x-3-Nema23

I wonder if I bought 3 of these (6amp) and swapped one of my 2nm motor's (3amp) to the Z axis will 1 650va toroidal transformers be enough? If I did it I'd swap the ballscrews over to 10mm pitch to double the speed. It's unlikely I will try to mill much aluminium on this but if I do I won't be doing it in the middle lol I'll do it at the edges closest to the Hiwin's to reduce flex on the gantry.