Messages

8861

Third party software and hardware support forums. / Re: Help with Stepper Motor Tuning and Setup

« on: April 02, 2009, 12:51:04 PM »

Hi Prof,

18-20 Volts is OK for your steppers, just make sure the 1 Amp current is not exceeded otherwise they will get very hot and may be damaged.

The motor settings are not really applicable to free running mode as everything will change when they are put under load driving a machine.
However, as motor torque reduces as the speed is increased - then increase the speed settings until the motor stalls when driven then back off the speed setting some 10 - 20 %. Set the acceleration to the fastest that will allow the motors to start from stationary.

Hope this helps,

Tweakie.

8862

Show"N"Tell ( Your Machines) / Re: Laser cross hair tool position.

« on: April 02, 2009, 12:21:39 PM »

Rich,

Is your laser similar to the ones that Dave and I have (with chrome color case) or is it the one with brass color case ?.

Just curious.

Tweakie.

8863

Show"N"Tell ( Your Machines) / Re: Finished my 4th axis

« on: April 02, 2009, 11:36:22 AM »

I am sure it will be quite stunning when it is done. When are you going to make a start on it ?.

Marcel would have you make one 1" OD with a dinky one just like it free and floating in the center.
What a challenge THAT would be !
Thanks,
RC

I think that Marcel is the one and only person who could make one that small RC.

8864

Show"N"Tell ( Your Machines) / Re: Laser cross hair tool position.

« on: April 02, 2009, 11:26:30 AM »

Sorry to hear that you wasted $5 and that it is no good Rich.

As said in the posting above I have a beam width of less than 0.3mm and this is brilliant for a router but not for a mill perhaps.

Tweakie.

8865

Tutorials / Re: OEM Buttons Description

« on: April 02, 2009, 05:24:43 AM »

For those who follow - Hood has now compiled an .xls file of the OEM codes and this is attached below.

Tweakie.

8866

Show"N"Tell ( Your Machines) / Re: Finished my 4th axis

« on: April 02, 2009, 02:11:11 AM »

Looking forward to seeing the end result Lemo. I think that the final finishing and polishing will take some hours to get anywhere near to the finish on that render.

Tweakie.

8867

Show"N"Tell ( Your Machines) / Re: Laser cross hair tool position.

« on: April 02, 2009, 02:02:58 AM »

Bad joke perhaps but I am glad that somebody looks at my website. 

Tweakie.

8868

Show"N"Tell ( Your Machines) / Re: Finished my 4th axis

« on: April 01, 2009, 11:21:44 AM »

Would that have been the 1st April last night ?   

Tweakie.

8869

Show"N"Tell ( Your Machines) / Re: My new CNC mill. JEH Guitars

« on: April 01, 2009, 08:08:58 AM »

That's great Jens - please post more pictures as you proceed.

Tweakie.

8870

Show"N"Tell ( Your Machines) / Re: Laser cross hair tool position.

« on: April 01, 2009, 05:58:04 AM »

One thing that should perhaps be mentioned in this thread is the danger associated with using lasers.

These little cross hair pointers are rated at 5 mW max output but prolonged staring into the reflected beam may well cause irreversible eye damage. For tool setting the beam is only viewed for a few seconds and the worst that could happen here is perhaps a bit of after vision - a lot less damaging than looking into the sun for example.

For the measurements that I made in the above posting I wore protective goggles but these are rated for the 1064 nm YAG  laser that I am currently working on and they are only rated at Factor 4 for the 650 nm wavelength of the red pointers. If you are going to spend a lot of time staring at cross hair pointers please invest in a pair of glasses/goggles first - they also remove a lot of the fuzziness and make the beam appear much sharper.

Tweakie.