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OK, episode 11 is now ready.

We say a fond farewell to the trusty Mk3 and start building the bed frame for Mk4.


https://youtu.be/sq-DNeiG8IA

Here comes episode 10 - machining parts for the bed:


https://youtu.be/wqff3IZZWvw

A bit of a backstory as I'm posting this towards the end of the build so to fill in the missing. I don't have an amazing amount of tooling or swathes of knowledge, my 21 years on this planet has...

It's possible that the hot potato damaged the driver input, although I can't tell for sure as the resolution of the picture of your breakout board on Zapp's site is not sufficient to identify the...

Matt,
Don't read this, the last thing I want to do is piss you off, I'm only saying this for the benefit of others.
"Configuration Management", is key once you get the machine working, this is a...

try a hairdryer on the boards.

Matt give me a ring asap I've lost your number.

Why not make your own? I made 2 so far... Just get a manual rotary table of eBay (RDG do them cheap).
Replace the handle with a T5 pulley, add a belt and a stepper. Done !
I can email you a...

Hi M8
That one was listed as out of stock
Buy Axminster CNC 4th Axis Rotary Table from Axminster, fast delivery for the UK
This ones silly money, with a bit of luck someone on the forum will have...

Would this do the job:- Rotary Tables - Arc Euro Trade ..Clive

You might find this interesting:- Three-Wire Sensors
It explains a little of how they operate ..Clive

I found this 9903 when I was looking for info on the proximity sensors I've got. Still haven't got around to fitting them though.

Hope it helps.

Your diagram is wrong... the connection to the bob is from the other side of the load resistor, not gnd.

But I think you are using these incorrectly. If these are NPN the load resistor is from...

I made those SBR block on sketchup and yes they are accurate to the dimensions given in the datasheet.

I think we should have a community sketchup thread with all bits and bobs of cnc machines. so...

They are on mine yes :smile:

This diagram might help:

9217

After doing a little bit of research, I think these vacuum pumps might be whats called a liquid ring type vacuum pump, where in actual fact you would fill part of the system with water, though I'm...

5.5Kw and 380 delta means you'd need one hell of a single phase supply to power them, along with a meaty step-up transformer and inverter.

If it wasn't for the plastic taps, I would of said the...

Use true type fonts and node edit the shape.

for example on the O widen the verticals and narrow the ends. this will control depth.

I would make a temporary tank up out of plastic sheet and use the electrolysis method, much safer and will look like new for all the parts. Defo stay away from the sand paper

Matt, I suspect your right about the one seller using multiple ebay names, has been mentioned before either on this forum or another. Lack of a reply may be down to them being away at the moment....

Just Change either of the DirLow active in Motor outputs and it will spin other way.

Yes you can control 2 motors with one drive but not good idea because of the way they work and sharing pulse's...

Don't cut corners on the BOB for the sake of getting the machine running has you'll spend more time chasing problems than you will cutting.!!

Personally I think BOB's are Bastards who deserve to...

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,...

Sorry just re read and you want the belt to cross the screws. Give ERIKS in Swindon a call

Address: Unit 2/Ravenseft Pk/Cheney Manor, Swindon SN2 2QP
Phone:01793 533181

The do belts of any...