operation cnc

[kingcreaky]

OK, Id like to have all the peaces together in order to get it moving at the weekend... or atleast try! assuming I can connect the X ballscrews and all the steppers this week I think it may be possible.

Ive also, for now decided to drive the X with dual steppers... rather than the single stepper long belt approach. Only because its easier (long story) Ultimately I may change my mind on this at a later date... but for the purpose of getting it initially going... 2 steppers it is...

So, I have already got
1 x 500w linear power supply from Zapp PS806-5 Linear power supply.
4 x DQ860MA 80v drives Stepper Motor Driver DQ860MA:Stepper Motor Driver DQ860MA wholesaler

Im going to buy hopefully today in order to get delivered for weekend
1.5mm2 cy cable CY Cable - 4 Core 1.5mm2
2 x steppers for X axis 3.1nm (will these be powerful enough? it weighs a ton!) Nema23 Stepper Motor 3.1Nm
this breakout board? Im open to advice Breakout board CNC Stepper Motor 5 Axis Spindle Relay HG07
1 x estop? Red Mushroom Emergency Stop push button switch NC 400V 6A

For now, until the machine is done and I can machine the face for the box all the electricery are in, im going to wire the steppers direct to the drivers rather than going via connector blocks. However I notice on some of the other builds fuse boxes are used... where about in the citcuit should I incorporate a fuse box (I assume after drivers and before steppers) What fuse box & how many fuses do I need etc?

Not sure if that breakout board is any good?

Can anybody recommend anything else im going to need.... or wish I had?

really appreciate your replies... reply even if you dont think you have anything to add... your probably going to know more about this subject that I and Id appreciate your thoughts....

ps - if anybody fancies a trip to leicester on sunday to be involved in a firing it up... all welcome pm me

[Jonathan]

The 500VA power supply is adequate. A little more would be nice, but it's not critical at this stage.

'2 x steppers for X axis 3.1nm (will these be powerful enough? it weighs a ton!)'

Plenty.

' Im open to advice Breakout board CNC Stepper Motor 5 Axis Spindle Relay HG07
1 x estop? Red Mushroom Emergency Stop push button switch NC 400V 6A'

Cheaper options:
Emergency Stop Button - Twist Release - 1NC
CNC4PC

where about in the citcuit should I incorporate a fuse box (I assume after drivers and before steppers)

Since interupping the current between the driver and motor can cause damage to the drivers, any fuses should be placed before. If you pop open the drivers you'll find they're already fused, but there's no harm in putting your own correctly rated fuse in if it makes you feel better.

Can anybody recommend anything else im going to need.... or wish I had? [...] if anybody fancies a trip to leicester

Er... me? PM on route.

[D.C.]

Can anybody recommend anything else im going to need.... or wish I had?

Looking good mate, I'm currently in a mexican standoff over clearing the garage out. :(

You don't seem to have listed a spindle, bucket, water pump, hoses & clamps for water pump, limit switches, homing switches, cable for the switches, PC, software or any end mills?

PS on the pics of your z-axis at the rear you have a few cm sticking up at the top. If you stick a couple of bits of aly in there bolted to either side it will add rigidity.