New start

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Originally Posted by Desertboy

Inductive sensors will detect aluminum but detection distance is roughly 1/2 they use them in 3d printers all the time for auto levelling the print bed.

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Huh!
Good to know ;)

I think I have a mountingplan for all my swithes now.. been brainstorming for a while ;)
Maybe I can rethink something with this new information ^^

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@wallyblackburn they did sence aluminium but only really close. Much closer then Im comfortable with in a switch :D

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Quote:

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Originally Posted by Nr1madman

@wallyblackburn they did sence aluminium but only really close. Much closer then Im comfortable with in a switch :D

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It would be better to attach a metal washer to a bolt for it to sense

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Originally Posted by Clive S

It would be better to attach a metal washer to a bolt for it to sense

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Yeah! I agree..
I tried it because wallace was curious and desertboy said it worked, not planning to use aluminium as sensory target :)
Have enough steel in my machine to make it work!

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Okey.. limitswitch for y axis!

Like an idiot I placed my 2 screwholes to tight so the boltheads wont fit :D
Will make a solution haha

https://image.ibb.co/dnPyOx/20180208_104103.jpg

The targets will be nuts drilled out to accept a m5 bolt since I only have m5 t nuts ;)

https://image.ibb.co/d49ZVc/20180208_104046.jpg
https://image.ibb.co/f4SA3x/20180208_104023.jpg

Will have to fit a washer in there aswell!

Y axis home switch is a pure example of "use what you have"
I know its like 5 parts to many for the function..

https://image.ibb.co/hFwL3x/20180208_104602.jpg
https://image.ibb.co/gVB9wH/20180208_104611.jpg

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Quote:

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Like an idiot I placed my 2 screwholes to tight so the boltheads wont fit :D
Will make a solution haha

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Stick the bolts in a battery drill and spin the heads them against grinder to make a smaller dia

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Originally Posted by Clive S

Stick the bolts in a battery drill and spin the heads them against grinder to make a smaller dia

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Cheers mate :)

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Woooh..

Moved my machine today to get better access to the side.
Need to mount one more ballscrew, motor, gantry sideplate, cable chain and sensors.

Its getting bloody heavy!!! :D

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I've seen a number of cases here where inductive/proximity switches are mounted to detect when an axis moves tangentially to the sensing face. In all the manufactures data that I've seen the advice is to mount the sensor such that the detected face is presented axially to the sensor. I'm guessing one issue with mounting the sensor tangentially is that it's clearly immune to damage due to crashing the axis into the sensor, but are there any negatives? (repeatability would be the one that springs to mind)

Quote:

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Originally Posted by Doddy

I've seen a number of cases here where inductive/proximity switches are mounted to detect when an axis moves tangentially to the sensing face. In all the manufactures data that I've seen the advice is to mount the sensor such that the detected face is presented axially to the sensor. I'm guessing one issue with mounting the sensor tangentially is that it's clearly immune to damage due to crashing the axis into the sensor, but are there any negatives? (repeatability would be the one that springs to mind)

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Well.. I have no clue if beeing honest ;)
I know jazzcnc did a lot of tests and came up with super accurate repeatability.. enough for my hobby needs atleast!
The problem with mounting them in line axially is that if you have a runaway axis it might actually overshoot the sensor due to inertia/mass of the axis.. then you have a crushed sensor ;)
I will try it this way!

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Help, advice, opinions wanted! :)

As Ive said before I'm planning on following euricains schematic for the controlcab.

The physical planning is not as well thought out :D

See quick sketch of lay out
https://image.ibb.co/ko5aAx/20180221_114802.jpg

Having the pc to the side like that.. good idea?
Can I mount just the base plate of the pc motherboard or is it a better idea to use entire pc chassis?
If it's okey with only baseplate will I need to get some kind of shielded mesh around the pc? Connected to star earth?

Same question about vfd? Okey to just have it there or does it need shielding?

All cables leaving the cab is cy..

The mains input will have two braces.
One with emi filter to vfd and one to all the psu:s
Thinking about dropping the 5v psu and use 5v from pc psu (raised this thought before)

The reason that I want to have everything clustered together is neatness and space saving. Also if I can avoid shielding and pc chassis I can have more centralised cooling and don't have to do separate cooling for pc..

Everything will be mounted on a steel backplate with metal sides (star earth connected)but maybe acrylic lid/front/door.. okey to do this?

Quote:

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Originally Posted by Nr1madman

Help, advice, opinions wanted! :)

As Ive said before I'm planning on following euricains schematic for the controlcab.

The physical planning is not as well thought out :D

See quick sketch of lay out
https://image.ibb.co/ko5aAx/20180221_114802.jpg

Having the pc to the side like that.. good idea?
Can I mount just the base plate of the pc motherboard or is it a better idea to use entire pc chassis?
If it's okey with only baseplate will I need to get some kind of shielded mesh around the pc? Connected to star earth?

Same question about vfd? Okey to just have it there or does it need shielding?

All cables leaving the cab is cy..

The mains input will have two braces.
One with emi filter to vfd and one to all the psu:s
Thinking about dropping the 5v psu and use 5v from pc psu (raised this thought before)

The reason that I want to have everything clustered together is neatness and space saving. Also if I can avoid shielding and pc chassis I can have more centralised cooling and don't have to do separate cooling for pc..

Everything will be mounted on a steel backplate with metal sides (star earth connected)but maybe acrylic lid/front/door.. okey to do this?

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I considered mounting motherboard in the controller box but decided against if I ever need to replace the PC it's going to be a lot of hassle so went with a seperate exterior solution.

Well.. I'm thinking that if I have pc baseplate and psu I can always change motherboard if I find that the pc is not up for it :)

Quote:

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Originally Posted by Doddy

I've seen a number of cases here where inductive/proximity switches are mounted to detect when an axis moves tangentially to the sensing face. In all the manufactures data that I've seen the advice is to mount the sensor such that the detected face is presented axially to the sensor. I'm guessing one issue with mounting the sensor tangentially is that it's clearly immune to damage due to crashing the axis into the sensor, but are there any negatives? (repeatability would be the one that springs to mind)

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Never been problem for me and I've fitted 100's. Repeatabilty is very good even with cheap prox switches. However I would say must use Steel for target and keep distance short for best results.

Quote:

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Originally Posted by Nr1madman

Help, advice, opinions wanted! :)

As Ive said before I'm planning on following euricains schematic for the controlcab.

The physical planning is not as well thought out :D


Having the pc to the side like that.. good idea?
Can I mount just the base plate of the pc motherboard or is it a better idea to use entire pc chassis?
If it's okey with only baseplate will I need to get some kind of shielded mesh around the pc? Connected to star earth?

Same question about vfd? Okey to just have it there or does it need shielding?

All cables leaving the cab is cy..

The mains input will have two braces.
One with emi filter to vfd and one to all the psu:s
Thinking about dropping the 5v psu and use 5v from pc psu (raised this thought before)

The reason that I want to have everything clustered together is neatness and space saving. Also if I can avoid shielding and pc chassis I can have more centralised cooling and don't have to do separate cooling for pc..

Everything will be mounted on a steel backplate with metal sides (star earth connected)but maybe acrylic lid/front/door.. okey to do this?

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Wouldn't have the VFD so close to the drives. I'd move all the Power in to same location as VFD and separate the BOB/Controller/Drives far away as possible.
Not fan of PC in the case because it's creating heat which kills drives etc but if you must then you really need think seriously about heat extraction.

To be honest unless you have exact dimensions then sketch like this never gives true picture so your better getting all the components together and lay them out on table and you'll quickly see best layout. Often it's little details like wire routing etc that lead you to best layout, you also soon see that you don't much space as you think you've got.!!

Attachment 23792

Quote:

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Originally Posted by Nr1madman

Well.. I'm thinking that if I have pc baseplate and psu I can always change motherboard if I find that the pc is not up for it :)

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I would get all your bits together first and then lay them out, you will be surprised at the amount of space you need.
Pic of one of my control boxes. This one power the lathe and mill with mpg's etc
Attachment 23793Attachment 23794Attachment 23795

Quote:

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Originally Posted by JAZZCNC

Wouldn't have the VFD so close to the drives. I'd move all the Power in to same location as VFD and separate the BOB/Controller/Drives far away as possible.
Not fan of PC in the case because it's creating heat which kills drives etc but if you must then you really need think seriously about heat extraction.

To be honest unless you have exact dimensions then sketch like this never gives true picture so your better getting all the components together and lay them out on table and you'll quickly see best layout. Often it's little details like wire routing etc that lead you to best layout, you also soon see that you don't much space as you think you've got.!!

Attachment 23792

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Cheers Jazz!
I have exact dimensions and have laid all the parts out. Can't take a pic right now because of sick kids. Wife will kill me if I make a venture to the shed :D
The box is 100x50x20cm.. It seemed roomy even with trunking and din rail and everything :)

Quote:

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Originally Posted by Clive S

I would get all your bits together first and then lay them out, you will be surprised at the amount of space you need.
Pic of one of my control boxes. This one power the lathe and mill with mpg's etc
Attachment 23793Attachment 23794Attachment 23795

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Haha !
Clive it looks like you might have one cable to many in there!! Just kidding :)
How big are those? 60x60?

Quote:

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Originally Posted by Nr1madman

Haha !
Clive it looks like you might have one cable to many in there!! Just kidding :)
How big are those? 60x60?

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No 50x50x20. I got carried away it was just for the mill at first then I added another two drives for the lathe etc etc. the pc is on the door with the monitor on the other side.

Just for the thought..

If I were to mount the vfd outside of the cab..
Separate mains connection with emi filter and still cy for the spindle..
How and what should I route between vfd and Bob? Cy? What I'm planning on using is software controlled start/stop and speed. So I'm guessing 4 core should do it?

Quote:

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Originally Posted by Clive S

No 50x50x20. I got carried away it was just for the mill at first then I added another two drives for the lathe etc etc. the pc is on the door with the monitor on the other side.

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Well.. I'm impressed!
I would be seriously out of my depth shifting through all that. But I guess it's easier when adding one thing at a time with purpose in mind!

Help :D

How about this layout?

https://image.ibb.co/jzvQNn/20180311_125847.jpg
https://image.ibb.co/fzxGTS/20180311_125548.jpg

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Don't forget the caps and rectifier for the toroidal PS

Quote:

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Originally Posted by Clive S

Don't forget the caps and rectifier for the toroidal PS

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Im actually gonna try ac for the drivers.
Changed my mind back and forwards but now I think I have decided :D

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Quote:

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Originally Posted by Nr1madman

Im actually gonna try ac for the drivers.
Changed my mind back and forwards but now I think I have decided :D

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Yes sorry, I forgot you was going with AC

Quote:

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Originally Posted by Nr1madman

Im actually gonna try ac for the drivers.
Changed my mind back and forwards but now I think I have decided :D

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I take it they are AM882h's not just standard AM882 which are DC only.

3 of mine are AM882h's and one AM882 so I had to go the DC route.

Quote:

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Originally Posted by Desertboy

I take it they are AM882h's not just standard AM882 which are DC only.

3 of mine are AM882h's and one AM882 so I had to go the DC route.

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They are Not Am882's.!!!

No they are not ;)

Had an amazing run in the shed today.

Really high hopes of seeing some movement soon :D

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The craziness has begun.

The psus are working.. thats good :)

With everything else Im just hoping to not see smoke :D

The wood parts and fuse holders are temporary. Just want to move forwards now

Oh.. forgot the pic!

https://image.ibb.co/nmmn3S/20180312_085635.jpg

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That's good! ....I do not see any smoke : P

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Originally Posted by Nickhofen

That's good! ....I do not see any smoke : P

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It's still in the drives waiting to get out:witless:

Quote:

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Originally Posted by Clive S

It's still in the drives waiting to get out:witless:

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Haha that's what scares me!

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Quote:

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Originally Posted by Nr1madman

Oh.. forgot the pic!

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I see there M860's now, they're always black in the pics online. The 2 top ones look like my AM's the 2 bottom ones have funky cases lol.

Attachment 23899

I don't see the h in the serial number sure you checked it all out already it'll be printed on stepper driver case but leadshine do a few drivers in DC and AC/DC flavours and it's the h your looking for.

Quote:

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Originally Posted by Desertboy

I don't see the h in the serial number sure you checked it all out already it'll be printed on stepper driver case but leadshine do a few drivers in DC and AC/DC flavours and it's the h your looking for.

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You won't do because there not Leadshine drives they are Copies of the DM860. They are made by company called JMC the little M emblem gives them away.

Quote:

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Originally Posted by Clive S

It's still in the drives waiting to get out:witless:

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Lol!!! Robert as you can see we are all to your side ready to help!!!

Small and tired update.

When I took this picture it made me question what the hell I am doing ;)

All wood parts will be replaced and used as templates...

https://image.ibb.co/f4sJVH/20180314_104504.jpg

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Nice,I like it the way you put everything in there!

Between the PC Motherboard and the PP BOB (The red thing) what is that?

Lovely work ;)

Quote:

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Originally Posted by Desertboy

Between the PC Motherboard and the PP BOB (The red thing) what is that?

Lovely work ;)

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Thats an uc300 motion controller. Sad to say it's the usb version. Got it real cheap from a forum user that didn't need it ;)

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