Friday, June 22, 2012

Chips & dust

Hi all,

Everyone that have CNC have two problems chips&dust and noise. I do not like to have mess in my workshop so I decide to solve first problem somehow. First of all chips. When I cut Aluminum chips are flying everywhere, so I made barrier for them. On the side of the table I have mounted 4 mm Plywood and I do not remove it. In front and back of table I mount 6 holders. When I can install and remove 3 mm MDF sheet. This is how it looks like:

 one holder

Tuesday, June 19, 2012

T-table part 2.

Hi,

yesterday I try my new table. It works great. There is no problem with attaching different type of materials. Also I made some additional holders, and corner finder for bigger plates of material. I will put of all files to Thingiverse today, so they can be easily downloaded. Some photos below from yesterday tests.


Monday, June 18, 2012

T-table for bigger CNC

Hi all,

I had a lot of problem with finding optimal table to my CNC. I try different ways to mount material to it. But all previous ideas were wrong. So I decided to T-table. First try is in plywood, to see how it will work.
So let start.
In my bigger machine I have 435 x 345 mm of work place. Bottom part of it where nut and slides are installed is from Aluminum. On this I put first layer of 10 mm plywood. Bottom groves are 13 mm wide and 7 mm deep, prepared for M8 nut. On the periphery of working place I made 10 mm holes 6 mm deep, where I punch with hammer M6 nuts. This is how it looks:

Monday, June 11, 2012

99 % ready

Hi,
This weekend was productive. I almost end building this CNC. Electronic part was added, and first table milling was done. It works OK. Some photos first:
General view 

Wednesday, June 6, 2012

Mechanic part is ready

Hi,

After long period of no info it is time for big update. Yesterday I have ended most mechanical stuff. All axis have motors mounted and they are moving smoothly.

Monday, April 23, 2012

Next axis almost ready

Hi all,

after long period of quiet I decide to put some post. I don not why, but I am still not used to do it regularly. I made some stuff last time and the newest is Y axis to my CNC. It is made from MDF, because I have it ;)
2 ball bearing are on ACME screw (Tr 14x4) and only one nut on it. Still are missing some rail bearings, but I need to collect funds on those. Lately I decided how to build last axis of the machine, I hope to build it in next two weeks.
I have some problems with adding photos, but I menaged to do it :)

Thursday, February 23, 2012

Z axis is ready

Hi all,


After long pause I came back to build my new CNC. I almost made electronic driver to it. Pictures of it will be available tomorrow. Next think I made was Z axis. I decided to made it from 10 and 12 mm plywood. I used 12 mm line rails, and 6 line bearings. Screw used it TR 10x2 with brass nut. Margin on it was good, but later I will cut it and squeeze to get margin elimination. I have almost 150 mm of operating range, but I am think to reduce it to 120 mm to get better stability. Step motor used have 1,2 Nm, and power is direct transfered to screw by coupler. Everything is prepared to hold KRESS (I think that I will use 1050 model). I try my KRESS to it, and it fit tightly. I take pictures before final touch of file and varnishing.