Messages

31

General Mach Discussion / Re: Cutting errors

« on: March 08, 2010, 10:58:11 AM »

I just had a thought not sure if this is possible, could my 1/4 bit cutting up to 1" deep be flexing?

32

General Mach Discussion / Re: Cutting errors

« on: March 08, 2010, 10:53:40 AM »

Found the wizard I will have to tryt that and see if the results are the same

33

General Mach Discussion / Re: Cutting errors

« on: March 08, 2010, 10:49:35 AM »

Yes, I checked the tool first it's within 1/2 thou so really close.  The code is generated by Vcarve.  I get a full circle or rectangle just a bit undersize.  It's strange if I were loosing stps I would think the circle would become a elipse etc.  I checked to make sure the feed screwes were tight also. 

Where is thge circle picket wizard?

34

General Mach Discussion / Cutting errors

« on: March 08, 2010, 10:09:10 AM »

I am not sure what to look for.  I am pocket cutting and the rectangle is coming out approximately 1/64 of an inc undersize.  This happens even when I cut a round pocket or hole.  I have not noticed a problem until I went to fit a clock insert into a hole that was too small.  All the other carving seems to be correct but I am not sure I would notice a small error is it were consistant.  But when you put 1" peg into a 1" hole that is quite noticeable.  actually I made the opening 1/32 larger than the insert for a bit of clearance and it was still tight ....  Any ideas what I should check?

35

General Mach Discussion / Re: Coupler question Motor Lead Screw

« on: February 13, 2010, 03:46:28 AM »

The first pic is the coupling I have.  all three axis.  I have not seen one like the one you show in pic two Helicalbeam.  I have to try an find those.

36

General Mach Discussion / Coupler question Motor Lead Screw

« on: February 12, 2010, 06:09:14 PM »

I have looked at so many I am confused now, seems they are all the BEST if you read all the Bull.....I need someone with experience with these to advise the best to use.

I am currently using a split coupler but it keep loosening up I am not sure why.  Maybe That is the best and I have a bad one something.

37

General Mach Discussion / Re: Gecko G540 Trim dajustment

« on: February 12, 2010, 08:48:45 AM »

The couplings I am using now are Single Split Couplings

38

General Mach Discussion / Re: Gecko G540 Trim dajustment

« on: February 12, 2010, 08:47:19 AM »

Thanks Phil, I sort of thought that but for a router I think the 4 TPI is probably the right way to go.  that is what I am runningbut have to do some major work on the drive system for more reliability and thought if I need to change them now is the time. 

I have couplings connecting the motor to the drive screw and they are split tubes with set set screws at each end and have a tendency to loosen up I have to fix that ..... I am looking now for a better coupling arrangement.

39

General Mach Discussion / Re: Gecko G540 Trim dajustment

« on: February 12, 2010, 08:26:15 AM »

Found it, thanks Hood..........

I have one more sort of related question.  The lead screw being 4 turns per inch if I were to change that to 10 turns per inch the stepper will have to turn faster to move the same distance have I imporved the accuracy.  Maybe a better way to phrase that question is "does the lead screw thread per inch have any bearing on the accuracy of the move?

40

General Mach Discussion / Gecko G540 Trim dajustment

« on: February 12, 2010, 08:00:27 AM »

Does anyone know what this adjustment is for?  I have looked all over trying to figure out what it is supposed to do and cannot find any information on it.  I am not sure if I need adjust or not but first I have to find out what I am adjusting,

Norm