Beastie

[vargai]

The price
[/B]I still have no exact idea, but i hope that in kit form it will result in build for less or around 1500euro. Or at least that's the idea. Now tell me what you think. This is not cheap cheap but hey, we are talking a bout quality machine here.

At first sight seems under estimated with this graded element.
I have updated my TBI calculation to this set up to rough comparison and think only Hiwin with adding factory made bearing will reach about the 1K EUR.

[Boyan Silyavski]

No bamboo will be harmed in the making of that machine.

One of the key point as i said is the design, so one of the jobs will be to make all small alu parts from the cut offs of the other parts. Even if i have to spend a month designing this.
Plus - remember, its only a sketch. It could be lightened where possible and necessary. If deemed worth.


I have not done the calc about the Hiwins and the ball screws. But i believe all the Hiwin will be around ~500$ and the ball screws around 250$ +200$ shipping.



But now its not the moment to be bothered about this or it will never happen. We know how not to do it. Lets think a way how to do it. At the end when all is clear corners then will be cut.

example:
Say a kick starter campaign and 50 people buy it. Then fifty kits will be totally different price. Now say that i share container, say that .... There are possibilities when the idea is perfectly clear.

[EddyCurrent]

No bamboo will be harmed in the making of that machine.

Just throwing ideas in; is there any mileage in this Z plate design ? http://www.cambam.co.uk/forum/index....cseen#msg32687
At the very least I'm thinking it could be useful as a method of spindle mounting, making it easy to swap spindles or maybe swap to a laser head, etc.

[GEOFFREY]

Great stuff!!! I tried to get something going as a project some time ago, but did not manage to get much interest from the site. It needed someone very experienced to run the project and you seem to have all the necessary skills.Fixed gantry is a good way to build a small rigid machine, but I personally would have liked to see the basis machine with a 600mm x 400mm working area. Anyway I wish you the very best of luck with this venture, and look forward to hearing more. Kickstarter sounds a good idea - who knows, I may even be a customer (I seem to collect cnc machines). G.

[mekanik]

It's great that you have found the time to look into this, we are frequently asked if there are any decent kits available and have not been able to offer any really decent option, with your attention to detail i am sure this will be a good solid machine, have to agree with Geoffrey i think the larger option would be better,my only concern is the cost of all the 20mm plate.
Regards
Mike

[EddyCurrent]

. . .my only concern is the cost of all the 20mm plate.
Regards
Mike

I think it should be built as a strong skeleton structure that is later plated in with thinner steel sheet to make it look nice. To prevent the thinner material vibrating it should be lined with something like the stuff used in cars; http://www.ebay.co.uk/itm/CAR-VAN-VE...-/220638134673

[bikepete]

I think it should be built as a strong skeleton structure that is later plated in with thinner steel sheet to make it look nice. To prevent the thinner material vibrating it should be lined with something like the stuff used in cars; http://www.ebay.co.uk/itm/CAR-VAN-VE...-/220638134673

I was thinking, looking at the initial designs, that it would be a great idea to have all of the sections closed, so that the user could just fill them with dry sand after shipping...

EDIT "And one main idea is also the gantry and sides and base to be epoxy fill ready, sand fill ready." Doh! teach me to look at the pics and not read the text properly before posting... as you were...

[Gotty101]

This is a real cool project. I would love to help but im very much a newbie to this at the moment, but i will be watching with interest.

Trev

[vargai]

Say a kick starter campaign and 50 people buy it.

Regarding to the quantity and the goal it is a general principle to think in modular elements.
I do not know if it is applicable to a CNC design but definitely useful.
The problem is if one use two building blocks to make a bigger one it can decrease the accuracy.
But anyway as general principle does not seem bad.