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I understand your misunderstanding and accept your apology.

Have you never heard of free samples? Why should anyone be regarded as a cardinal sinner because he starts charging for what was given away for free before?

If you really want to find some...

The 6 rollers allows the z-slide to be retracted higher, so that it only sits in the upper 4 bearings. That is sufficient because the slides protrusion/extension below the last supporting bearing is...

I think that Mike is charging a fee for the plans these days.

On the MechMate forum today:

The only point where backlash has been mentioned in relation to MechMate is within the off-the-shelf geared motor from Oriental Motor. The use of this geared motor is not mandatory - other folk have...

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It is time to step away from this train wreck.

Edit to add: Did not realise that Jeff had stepped in since Charlie's last post

Charlie, we were not asking you to concede anything here. What we were hoping for was that you would open your mind to considering that the 1/2" error you observed was caused by something other than...

Charlie (chopper, cmg, jimbo & PBG) created false usernames to try and prove himself right at the MM forum. I strongly suspect that SpeedMill shares the same IP address as cmg. SpeedMill was created...

CMG, I think I know what happened with your friend's machine..... His pinion gears were starting to slip on the gearbox shafts (quite common). You removed his gearboxes and fitted belt drives, in the...

What started the shouting at the MechMate forum was this statement:

. . . on my friends machine there was so much back lash that when he cut a sign you could see the letters get smaller as it...

If you are cutting reindeer lawn ornaments, or kitchen cabinets, 0.005" really does not matter.

Actually, plunging at lower speeds is worse - we had a guy complain that his z-axis would loose steps if he didn't turn the router on! :)

Ger, what sort of cutters are you expecting to be...

That angle on the MechMate (and EZrouter and old ShopBot) is about 45 degrees with no complaints. In theory, flatter would be better, but it hasn't proved to be a problem area.

An advantage of having the spindle between "gantries" is the fact that you can get a good distance between the rails and keep the rails low down. This gives the car a wider and lower "footprint".
...

I would prefer that the moderators do not delete this thread. The world needs to know about this slippery David Moore character. (He has also used a couple of other names, but his wordy way of...

Eric, I very much suspect that these are your gray areas:
http://www.campbelldesigns.net/Combo-board.php

That "CMOS logic board" is probably behind the external LED's?

Our MechMates all have 45 degree arms - they work fine.

You do not need bearings at the hinge point since the theoretic rotation is nil. We use bolt & nylock nut with some plastic washers for...

Have looked at your sketch, and if your proportions are right, that layout will give you some headaches. If the motor must push the car to the right, the pinion will climb out of the rack.

What...

See:
http://www.mechmate.com/forums/showthread.php?t=1055

Here is a "feel good" thread that I assembled from posts of MechMate builders around the world:

http://www.mechmate.com/forums/showthread.php?t=944

Hope that it may inspire some folk to take...

A quick way to find out how much force you need is to measure it with a fisherman's pocket scale. A MechMate is happy to push around more than 50 pounds [25kg] all day

The MechMate story on motors is posted here. You can pretty much slap any motor onto the MechMate's mounting plate, even a belt drive if you want to. There is no such thing as the "right" motor for a...

I saw that! :)

Actually, I welcome changes, provided that they are made with solid engineering thinking behind them.

Build a MechMate with the 14" Z-slide option and raise the gantry to be 14" above the table. When you want the original stiffness for panel cutting, place a false table "box" on top of your table, to...

*closes eyes and puts fingers in ears . . . *

If you were using geckodrives, a switch between the capacitors and the gecko would be a very expensive idea.....goodbye gecko.

Here is the latest on the moving "skate" grinder for long rails:

http://www.mechmate.com/forums/showthread.php?t=730

That quote was about a year ago. It would seem that nearer to a 100 machines have been built all over the show by now, but no re-seller is making a roaring profit. Start-up companies are not getting...