When a cutter is busy chopping up wood, it makes the same noise (and vibration) if it is driven by a router or a spindle. Believe me, a spindle that is working hard, still makes a lot of noise.

Then I think I will focus on the enclosures first!

Thanks G'

RGDS
Irfan

some updates and trouble
 

Hi Folks as the first development on populating the Controls into the control box I fixed in the Intel Atom computer into the control box and also fixed in the cd rom in such a way that its accessible to the outside.

well now the problem - we were trying to cut the angle iron today (see pic in the zipped file, donno why but always the cuts went one mm below as if the cut was digging into the L - angle rail.

May be I did not have a sturdy enough clamp made for the angle grinder.

will try again on monday though - any comments and help are welcome - meanwhile I did not laser cut the grinding attachment - thought would borrow it from vishnu - since vishnu is down with high fever I will be postponing the angle grinding or may be ask sharma to lend his.

will keep all posted though.

RGDS
IRfan

I think you have the wrong grinding technique if your disk is that deep through the metal. . . . .


The idea is to cut a shallow groove over a long distance, come back and cut it a bit deeper, come back again and cut it deeper again, etc. You may take 10 to 20 "steps" or oscillations to get through the metal.

Irfan, I used that method and it did work for me.
Screw your rail against some flat surface,maybe the spoil board and get your friend to hold some safety glases in front of you:(, use both hands on your grinder.Looks like you are holding the grinder down with your right hand on the handle( might be that you are pushing it down.Your clamps look ok I used one of my extractors hose clamps )

Like Gerald`s reply don`t force the cutting disk into the angle iron just, just let the cutting disk touch the metal you will be amazed how much it takes of. Take it from side to side running the full length of the rail. you will do some serious exersise behind the rail but it works.

Look at my thread it should show you.Try putting your rails back to back then you cut them together same hight and they are straight.

thanks for the inputs folks will try that tomorrow.

RGDS
IRfan

Irfan, your build is looking good. I found out that it will cost about $145 U.S. to ship the 3KW Chinese Spindle to you from taiwan according to the address you PM to me. Good Luck with your build:)

Oh, I forgot to mention, my purchase of the spindle has been further delayed as I'm still learning the ropes and don't mind distroying a cheap router. Geralds advice on an earlier post is definitely worth heeding. I've had a few OOPS:eek: already and every time it happens, you say to yourself, "Thank God it's just a cheap router and cheap router bit and not an expensive spindle and/or $70 O-flute cutter!"

Hi David, thanks for the update on the spindle. the shipping costs looks better from Taiwan.

the makita router is around 16.5K INR , which means is close to 340USD- I rather invest the same in the new spindle - i will try a el-cheapo chinese router for the time being.

RGDS
IRfan

Some more progress
 

HI Folks,

some more updates and pictures of my shop - since there were bikes every where on the forum - here is mine - a Bajaj 110CC 4 stroke - its now 8 years old. still a good workhorse for me.

Mechmate build is going on smoothly.

RGDS
Irfan

What about BBB...no not Big Blue Brakpan, but Beard, Bike and Boep on this side......for those on the other side of the world....BOEP is what we call a big belly.

my wife says I have a reasonably sized belly at 29 :)

so only BB, Bike and Belly - no beard :)

the bike is my daily commute everwhere.

RGDS
Irfan

Hi Folks,

Was thinking of trying to avoid the mixing up of signal and power cables - but its very difficult - just using shielded for the signals, realised have to study some more on interfacing the whole thing together - meaning the disable thingi on the gecko - how do we club all that - I will chk up for that.

till then any comments are welcome . I left some extra wire in the cable tubes - I hope thats ok : (see pics)

RGDS
IRfan

Looking good Irfan. The fan blowing air through the heat sinks on which you have mounted your Geckos should keep them good and cool.

Thank you Doug.

RGDS
IRfan

Hi Folks, my mechmate build is sort of slowed due to more office work and some orders for the smaller machine.

I am so worried about the router sound. :)

here is the link to some of my work

http://www.cnczone.com/forums/showpo...&postcount=201

RGDS
IRfan

Obviously we were wondering about our Indian friends in the last 3 days . . .

I was hoping you would have experimented with removing that router fan and given us some noise/(smoke?) results? :D

tomorrow I promise the its either going to be no noise or no router (smoke it up baby) the elcheapo I have will be the bakra - :)

RGDS
IRfan

Is the "bakra" a sacrificial goat?

Yes Gerald , Bakra means only a goat, But in this case if irfan does a mistake it will sacrifisied @ the cost of 2 Goats Approx $100 i think.

Vishnu

i thank all the people around the globe who shared grief & pity to the people who withered away in Mumbai. We may all wish to have a peaceful world for our future generation free of terror.

Motors turning
 

:)

folks today almost finished all the wiring and then powered up a drive - now the stepper motor turns well.

havent set up exact steps per rev etc., will do that on the machine - but as of now things look very good on the control box. estop works.

The following was done today

1. The three computers - machine 1, machine2 and laptop were networked.
2. Mini IO xml shared from the small mc
3. Mach lockdown version installed on the mechmate computer.
4. Finalised wiring of the controller
5. Chkd for estop (24V estop working)
6. connected relays which short the caps to a 7ohm 25 watts wire wound resistor.

Things to do

1. Chk all motors running - have to read more here
2. Tune the motors - have to read more
3. have to interface the e stop using optos to the BOB.
and so much more to do............

I have a question folks

I have 4 motors out of which 3 are 630OZ and one is 450OZ,

I am planning to use the 630 ones on the long and Z axis and use the 450 on the short axis.

is that the right thing to do?

I will be having 1:3 JR type reductions on all four.

Need your help on finalising this.

http://www.youtube.com/watch?v=i1Jved539G8

the video of the motor turning

Folks thats all for today

I should say the Atom is a nice processor MB combo.

RGDS
IRfan

I would use the "weak" motor on the short vertical Z-axis.

G' should not the title of this thread change to something better? :)

G' the logic behind me not planning to use the weak motor on the Z was that when doing 3d stuff we need more accln and speed on the Z which the weak motor may fail to provide.

where as the shorter axis most of the time has a linear speed movement and that why use the weaker motor on the short axis.

RGDS
Irfan

The z is the lowest mass axis and needs less torque to achieve the same acceleration.

Okay, you give me a thread title - it is YOUR thread! :D

Motors moving - waiting to compare the ballscrew servo and the mechmae stepper machine !

Well done Irfan! I am falling behind again.

HI folks, I ordered the Asian spindle today.

cost being 261 USD + shipping - Vishnu also ordered the motors from Deitec, cost was 52USD for 580 OZ motors - we are using a 1:3 reduction - so I think will be sufficient.

the advantage of buying it from deitec was that they are located in Hong Kong and UPS is real cheap than from interior China.

RGDS
IRfan