[onocyclone]

Also the tool rack I made does the job perfectly

[onocyclone]

Ok some major progress today,

I received the Belt drive kit and fitted on the machine and immediately noticed I had a issue ! The hole for the wire to go down is now blocked so I will have to drill a new one, the sensor is also too low so will have to pack that up.

Also I don't know how tight I should have the belt. I did it really damn tight and the top bearing sounded odd, rattle at low rpm. Not tight enough and the torque is very very little at low rpm.


Also the motor now arks massively and at full RPM I heard a pop and the motor blew the electric in the garage haha no damage but I suppose It will have to bed in the new brushes.

Attachment 277008Attachment 277010Attachment 277012

[Connor]

Ok some major progress today,

I received the Belt drive kit and fitted on the machine and immediately noticed I had a issue ! The hole for the wire to go down is now blocked so I will have to drill a new one, the sensor is also too low so will have to pack that up.

Also I don't know how tight I should have the belt. I did it really damn tight and the top bearing sounded odd, rattle at low rpm. Not tight enough and the torque is very very little at low rpm.


Also the motor now arks massively and at full RPM I heard a pop and the motor blew the electric in the garage haha no damage but I suppose It will have to bed in the new brushes.

I wouldn't bother with drilling the hole. Chances are your going to remove the control box and use cable chain.. in which case, the wire will route differently.

[Stigoe]

the sensor is also too low so will have to pack that up.

It looks like you have the sensor upside down compared to the picture in the eBay listing for the belt drive kit.

[onocyclone]

No it's not of eBay, it is the correct way up too ill have to pack it up later

[Stigoe]

It looks very much the same as this kit and in picture 2 you can see the sensor is upside down compared to your picture.

[onocyclone]

Yes that's the kit and it does look like my sensor is upside down, I'll have a look at that, cheers.

[onocyclone]

Today I turned the sensor round and it fits perfectly now, I need to rout the wire for it some how

I've found something quite worrying though, when I pull the belt to the specified tension then the top bearing makes a real noise ! I have to put little tension on the belt and it doesn't happen. I machined some plastic with some large depth cuts and it didn't stop or slip.

Also the motor when it gets near full rpm it arks out and trips the electrics in the garage. Every time. Not sure if the motor is scrap. The commutator looked fine when it was dissembles and cleaned.

[Fastest1]

I have a different belt drive but I do run various tensions. Different speeds seem to need different tensions in my experience.

[onocyclone]

What about the bearing noise like I described, have you encountered this ?

[hub]

What about the bearing noise like I described, have you encountered this ?

What kind of bearings does it have?

[onocyclone]

Stock bearings, it is the top bearing without a doubt.

[hub]

Stock bearings, it is the top bearing without a doubt.

I'm not familiar with the machine, Angular contact bearings? Or?

[onocyclone]

Sealed ball bearing

[hub]

The bearing must be worn out if there's noise (Or it's running past it's max RPM). An AC bearing would be better than a plain ball bearing. The Z axis needs to take loads from sides and up/down.

[Flexo!]

You can get a lot of "rattle" from the quill drive splines. Stock bearings with the rubber seals are very high friction (prime cause of the arcing) - the metal shield equivalents are much freer moving.

[Fastest1]

What about the bearing noise like I described, have you encountered this ?

If that was to me, no noise from the bearings in my case.

[Stigoe]

You can get a lot of "rattle" from the quill drive splines.

Somewhere in either Hoss' thread or mhackney's(?) thread there is a dxf for a spacer for the quill drive to stop it from rattling.

[onocyclone]

Now you mention it it could be the quill. It would take some serious grief to damage the top bearing! It's huge,

Where does this spacer fit to stop the rattle ?


Also I machined some test pieces out of plastic today and the accuracy of the mill is pretty good now

Between 0.00-0.05mm even on Diameters. I may have to slow the compensation Dow a little because it changes direction quite quickly still. But it is much much better than it was before

Attachment 277144Attachment 277146

[Stigoe]

If you search for a thread by mhackney called "building a big brother for my X2" or something similar you will find where it goes. Basically on top of the spindle, around the splines. You can get a.stl for it there or in this thread