Nearly hasn't forgotten! The sizes in millimeters!

I am very glad for you Dmitry!
I shall do too such car.
Yours faithfully.:)

Started to build 4th axis
 

Greetings to all. I hope, building of MM at all goes according to plan.

I managed a rotary table which I have decided to restore and use for 4th axis.

Amazing what I little bit of love and time can do. Well done.

Always a delight to see your work :)

Continue the report

Greetings to all.
Today I have connected and have adjusted a limit-switch for the A-axis.
Small video here: http://www.youtube.com/watch?v=TBN9JISs2GQ

What is the total gear ratio?

Hi, Gerald! I am glad to see you here.

The gear ratio is 90:1.

Rotation can be stopped with hands. I assume, that capacities of the motor can be insufficiently. For indexer, I think, enough. In the future I will change the motor for more powerful. It is necessary to put the additional power unit for it.

Here what backlash I could reveal. Rotation +/- 60 degrees, +/- 120 degrees, +/- 180 degrees... then go to zero. Ref all home give me same result.
I am very happy. But I can be not correct to check backlash?

Holding down rollers for sheet materials
 

Greetings to all.

I represent to you mi holding down rollers for sheet materials.
I have seen them in the street, and have thought: "why not? It is necessary to try!"
Result in this video http://youtu.be/236xt6LX594
Now it is not necessary to buy a vacuum pomp :) - works perfectly!
Sheet in size 1500х1700 mm hold only 2 clips.

Dmitriy
I can clearly see that you guys don't just sit and drink Vodka all day long. I also cut fiberglass sheets and you just solved a big problem for me. I normally screw the sheet down in several places.

Regards
Marius.

Russian like to drink as well as in any other country :) Probably with more scope... But also to work Russian are able too. And in this case it is necessary to work less :)

I like your style man!:D

I am always glad to impart experience :) No problem :D Wellcom to Russia!

спасибо

Brilliant idea!!!

Excelente !

A year ago I posted this hold down head that also allows for vacuuming: http://www.mechmate.com/forums/showthread.php?t=2662

Dmitriy
I see that you also cut fiberglass. We have a CNC club over here and we had our last meeting for the year last night. I spoke to a guy there about your invention and he mentioned that you get a special tool for cutting fiberglass. This tool has straight flutes so it will not lift the job at all. You might try that as well to further improve the quality of your cut.

Regards
Marius

Marius is this an exclusive club.:)

No Hennie, not at all. There are some old hands and some new ones. It is all about getting new guys to understand CNC and to share experience. The main focus is on EMC2 though. I am about to switch to EMC myself. Lots of advantages I am told.

I am waiting for a link to the group and I will pass it on to you.

Marius, what took you so long to switch to EMC2???

Ken,
I have a problem with self when it comes to building things. Once I have created something I never go back to it because I loose interest in that item. It must just work.
So now I am building a new machine and hence the new interest. Also, I must say in shame, I like the blinking lights of Mach. But no more, I am cured of the lights.

Dmitriy,
What size bearings did you use on the skate please?
And how did you arrange your tail stock for the rotary table?