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Forum: MechMates already cutting Sat 29 August 2015, 00:42
Replies: 479
Views: 535,389
Posted By Gerald D
Unfortunately for the people who enjoy...

Unfortunately for the people who enjoy traditional woodwork, a CNC router is going to earn the most (or easiest) income while cutting boards, and most of these boards are synthetic "wood".

Our...
Forum: MechMates already cutting Fri 28 August 2015, 00:56
Replies: 479
Views: 535,389
Posted By Gerald D
That is a nice production money earner - well...

That is a nice production money earner - well done :)
Forum: MechMates already cutting Tue 17 February 2015, 11:54
Replies: 479
Views: 535,389
Posted By Gerald D
Let's think about this for a while . . . . ....

Let's think about this for a while . . . . . before making some conclusion.

I do believe it is always useful to put your hand in parts of the the machine and feel what is going on. . . . . . .
...
Forum: MechMates already cutting Tue 03 February 2015, 22:24
Replies: 479
Views: 535,389
Posted By Gerald D
Robert, take your time . . . this subject is...

Robert, take your time . . . this subject is already about 20 years old:D
Forum: MechMates already cutting Wed 28 January 2015, 22:12
Replies: 479
Views: 535,389
Posted By Gerald D
That article does tie up with my observations and...

That article does tie up with my observations and gut feel. Great to see someone tackle the subject objectively.
Forum: MechMates already cutting Tue 27 January 2015, 07:33
Replies: 479
Views: 535,389
Posted By Gerald D
A very slow speed. If you are having "chatter"...

A very slow speed. If you are having "chatter" problems at a known speed, try to estimate the speed of the slower axis. The pliers test is going to be a little dangerous and it will leave marks in...
Forum: MechMates already cutting Tue 27 January 2015, 04:24
Replies: 479
Views: 535,389
Posted By Gerald D
Robert, all is well this side, just getting older...

Robert, all is well this side, just getting older . . . . . 60 this year.

Such an experiment will be interesting. Especially if you drop both x and y motors. Try to see if one axis makes pulses...
Forum: MechMates already cutting Tue 27 January 2015, 01:17
Replies: 479
Views: 535,389
Posted By Gerald D
I did look at this many times, years ago. It is...

I did look at this many times, years ago. It is very common and has been discussed to death. My personal view (the "experts" don't agree) is that a stepper motor cannot micro-step under load. I think...
Forum: MechMates already cutting Thu 27 December 2012, 07:34
Replies: 479
Views: 535,389
Posted By Gerald D
So true Clayton - this subject is really quite...

So true Clayton - this subject is really quite simple and clear thinking like yours will triumph. Thanks.
Forum: MechMates already cutting Wed 26 December 2012, 22:20
Replies: 479
Views: 535,389
Posted By Gerald D
This is a very low-tech joint, pulling some...

This is a very low-tech joint, pulling some "wood" against steel. It is not important that the screw is in a precise position, or that the screw is exactly vertical. Two things create some angles:
-...
Forum: MechMates already cutting Wed 26 December 2012, 13:39
Replies: 479
Views: 535,389
Posted By Gerald D
Look at drawing 10 10 000 A where it shows the...

Look at drawing 10 10 000 A where it shows the bolting method.
Forum: MechMates already cutting Wed 26 December 2012, 09:11
Replies: 479
Views: 535,389
Posted By Gerald D
We drilled the holes up through the support board...

We drilled the holes up through the support board at an angle to miss the lower lip of the channel. The small angle does not cause a problem to tighten the screw into the wood. (The taper of the lip...
Forum: MechMates already cutting Fri 28 September 2012, 02:32
Replies: 479
Views: 535,389
Posted By Gerald D
Thanks Robert, that workshop is still nice and...

Thanks Robert, that workshop is still nice and empty! :D

(PS, you have an edit button for 30 minutes - I made some small changes for you)
Forum: MechMates already cutting Wed 26 September 2012, 23:07
Replies: 479
Views: 535,389
Posted By Gerald D
Hi Robert, we know you are still out there - how...

Hi Robert, we know you are still out there - how about some recent pictures of your work? :)
Forum: MechMates already cutting Wed 16 June 2010, 08:06
Replies: 479
Views: 535,389
Posted By Gerald D
Before changing anything in Mach, try cutting...

Before changing anything in Mach, try cutting that piece by going in two different directions, go clockwise and anti-clockwise around it. Then compare the dimensions. Normally the clockwise is a bit...
Forum: MechMates already cutting Mon 12 April 2010, 12:22
Replies: 479
Views: 535,389
Posted By Gerald D
Okay, they can make noise, see...

Okay, they can make noise, see http://www.plitron.com/lono.asp
Forum: MechMates already cutting Mon 12 April 2010, 12:18
Replies: 479
Views: 535,389
Posted By Gerald D
A toroid transformer should not make a noise -...

A toroid transformer should not make a noise - they are absolutely silent to my ears.
Forum: MechMates already cutting Tue 06 April 2010, 05:16
Replies: 479
Views: 535,389
Posted By Gerald D
Aaahhh . . . .at last!! Well done! :) ...

Aaahhh . . . .at last!! Well done! :)

Typical settings for Mach motor tuning (http://www.mechmate.com/forums/showthread.php?t=875&highlight=acceleration)
Forum: MechMates already cutting Mon 05 April 2010, 21:16
Replies: 479
Views: 535,389
Posted By Gerald D
Have you seen the thread on this forum where we...

Have you seen the thread on this forum where we listed the tuning parameters from a couple of people?
Forum: MechMates already cutting Wed 31 March 2010, 00:04
Replies: 479
Views: 535,389
Posted By Gerald D
I see that you are using direct-drive motors,...

I see that you are using direct-drive motors, with big pinion gears; that is most unusual and I think you will be disappointed with the performance . . . it will be like trying to drive a car in top...
Forum: MechMates already cutting Wed 02 December 2009, 11:47
Replies: 479
Views: 535,389
Posted By Gerald D
A simple (no-cost) change to 10 30 455 (with...

A simple (no-cost) change to 10 30 455 (with matching change to 10 30 422) can give exactly the same result as the modification contemplated above.
Forum: MechMates already cutting Tue 01 December 2009, 04:01
Replies: 479
Views: 535,389
Posted By Gerald D
I prefer to stay silent on your spider neck.

I prefer to stay silent on your spider neck.
Forum: MechMates already cutting Mon 30 November 2009, 22:11
Replies: 479
Views: 535,389
Posted By Gerald D
In your last picture, I see that the back end of...

In your last picture, I see that the back end of your stepper motor is open. I suggest that you cover that hole with tape because sawdust in there will be direct onto the non-sealed bearing. (We have...
Forum: MechMates already cutting Tue 24 November 2009, 22:23
Replies: 479
Views: 535,389
Posted By Gerald D
The mod is okay, but it looks unfinished with...

The mod is okay, but it looks unfinished with surplus metal points. Some 2 minute sketches:

7278


I would personally not recycle the grind skate bearings because they could have been...
Forum: MechMates already cutting Thu 19 November 2009, 22:42
Replies: 479
Views: 535,389
Posted By Gerald D
Nice work! (It took me a while to spot the...

Nice work! (It took me a while to spot the "shop-made polycarbonate square")
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