1st Build, Second machine

[m.marino]

Okay,

Here is tha much promised and hard to get around to drawing of v2. You will notice that it is not complete. I am still working away at it but would like some input. Will let you know any other problems might be having in the near future. Due to problems (flex of Y axis and Z axis dropping up to 1.5mm from a set position) this rebuild has to be done like yesterday and been working on it the last three days non-stop. This is what has made far enough to be label a version and put before you folks for opinion and evaluation.

Any and all opinions would be greatly appreciated as will be burningthe candle in to the long hours. Need this done to get product back up to stocking levels for a convention at the end of October. Yes thing s do go wrong at just the wrong time. Yes I know I need to increase the rail for Z to get 150mm.

Anyone wanting a DWG, STP, IGES file of this or the completed gantry router let me know.

Michael

[blackburn mark]

id think about putting both Y axis rails top and bottom or you are going to lose valuable space...

the way you have them now will have your spindle over hanging further than it needs to buy quite a long way

try to keep your spindle as far back as possible... every little bit will help, it may not alter the flex by much but im pretty sure that each little fraction of stiffness you save will reduce sympathetic resonance or vibration by a sh*t load

good luck

[JAZZCNC]

Due to problems (flex of Y axis and Z axis dropping up to 1.5mm from a set position)

The Zaxis dropping most likely won't be due to weak design problem but more probably an electrical problem, possibly a weak or under powered motor thou you'll still have the same problem if not changed.

Other than what marks pointed out then there's not much more to see or say.

[m.marino]

Okay but then comes placement of the lead screw, as don't have the funds for a new ballscrew at present. Folks I am really aprreciative of your input it is just that I have a rather large amount of work that I have been finishing that was supposed to go to this convention for clients who are interest and some that are closed sales IF I get the product there.

Again thanks and will try to get some revised drawings up later tonight.

Michael

[blackburn mark]

but then comes placement of the lead screw, as don't have the funds for a new ballscrew at present.

which one Z or Y screw? i thought you already had them??.. they will already be as long as they are :heehee:


there are ways of squeezing them in