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I did not used a ball screw it is an standard tapazod screw think 10-12 mm by 2mm with a brass nut. I used spring washers and thrust bearing. Sorry I don't give out drawings but affectivly I just...

Hi

My machine spindle seams to be loosening and the split nut with cap screws keep unwinding causing surface finish issues. Has anyone had any ideas on fixing this? I am not really pushing the...

the plates were 6083 t6

the screws were china ones and had them machine them to fit the couplers.

i machined my own couplers but arc euro trade does them but 3/4" ones should be good but 1"...

That sound like you have not set the pitch correctly, i suggest trying to change the pitch value and remeasuring. if you measure four points 0 15 25 30 and 45 you can plot them on a graph you can see...

I machined them and glued and press fitted them onto the end caps and not had any issues with them.

I did have the advantage that the material was the anodizing grade, which is not the best for machining and mechanically.

I personally would not bother with an oiler as the quality and cost of the machine does not warrant it. Yes they at nice but applying a little oil is not difficult and you can buy lots of can of 3 in...

What you want to do is put a conductor (ally) over the whole board this will more evenly dissipate the heat across the whole surface then an insulator over the top (glass) to stabilize the...

I am sorry but that is obviously the wrong nut for the threaded rod.

could be M8 on 1/4 or something else.

Here is an example

Extruder drive assembly : eMAKERshop

They use either 6mm or 1/4 air line and push fittings

I cannot see the problem with Y you can just extend the axis and increase the belt length. The real issue will be sage in the axis. especially with the motor mounter extruder rather than the remote...

I would have to disagree chip manufactures have to conservatively rate there products, and commonly rate them 10-15% less than there maximum capacity but as with anything it is how it is used. The...

i never had any issue running my machine at 50V and it ran for 4 years like that. I continue to run my g540 at 52v and it is rated for 50 with no issue. But i did check with gecko and they do state...

I used to 2 32mm grinding discs.

One was used for putting in the slots and the ring, the another to put the chamfer in.

Custom Road Hub Machining (BF20, G0704, CNC, 7X12 Lathe) - YouTube

latest project that i have been working on.

I did not mill oiling ways into my bed. Partly i don't think it is required and i am more of a machiner not machine builder. my conversion did require one bit of machining to the saddle and that was...

the nuts are case hardened so the grinding option was going to be the quickest method to remove that volume of material, and i had already got the mount for the high speed spindle as i had done some...

as for enclosure i used a box on 4 sides and a shower curtain on the front.

I counter weighted mine with the table of an XY table that i had, about 15kg. it was enough to reduce any crabing of the axis.

Z mount wise i would shim the L bracket till it is parallel to the axis and then adjust the Z mounting plate to suit.

if you are upping the drives you should up the voltage as well. Also i think you have found the hard way that stepper motor torque curves are not linear with rpm. When stalled they give the most...

Any further progress? One thought is you could direct drive the main shaft and drive the lay shaft while in rotary axis mode. You would get some mechanical advantage in rotary mode but there could be...

you don't need the pins and if anything they are limiting as you cannot get the best alignment. my screw hole have .3 mm clearance to allow for fine tuning. but i have never removed them since i...

here is a link to my thread

http://www.cnczone.com/forums/benchtop_machines/118813-spg_2217-20lv_milling_drilling_machine.html

so you are doing the same as my conversion.

A large grinder is not good as it generates a lot of heat where the small kurf on the dremel minimizes heating and reducing the chances of changing the properties of the steel.

those shots were at...

did you not read my post on how i machined my nut.

I used a grinding disc in a dremel on my machine. those slitting saws are only good for cutting soft materials like plastic or ally. Steel they...

You can have multiple profile setup. One lathe one mill it is very unlikely you will need to run the spindle on the mill when in lathe mode. You might need to do some cable swapping going between the...

They are comparable to each other as there will be enough give in the belt to cause finish issues.