My steel frame small router (Madvac Inspiration)

[contactirfu]

Hi All,

Just an update!

Finally satisfied with my Z axis done with tubes . originally planned out of Alu plate but finally done using mild steel tubes.

Do post comments!

RGDS
Irfan

[joecnc2006]

machine is looking real good and strong

[svenakela]

Looking good, I like steel routers (have one myself). But I wouldn't call that one small...

[pksdms]

Very nice and solid built, will definately give nice cuts. You should/may have some plans on keeping x rails clean while in use.

[contactirfu]

Hi All,

Thanks for your feed back, here are some videos of the pictures.

http://www.youtube.com/watch?v=-S5dVGmrlEM
http://www.youtube.com/watch?v=vmPT85_cxec

Yup i do have some plans to keep teh X rails clean, will tell it out only when i do it! bcos may be I have more than one ideas to utilize on the machine.

Also think I should't have called it a small machine - however considering that I will be building a mechmate soon - this is considerably small to that. so no problem there.

RGDS
Irfan

[contactirfu]

Had the end supports of the ballscrew made and mounted onto the machine for a look,the guy who reconditioned the screw SCREWED it up on the support end.

It was in no way the dia of the bearing and now i need help,i will post some more photos requesting for help.

Meanwhile enjoy these pics.

[andy_ck87028]

Hi

Nice machine.

I have suggestion re. improving your cutting torque.

I think a variable height table that can be raised lowered by whatever means achievable would help.

If you cut everything at the height the table is now I think you will find some materials easier to cut than others.

Basically the harder the material, the less you would want to extend your z axis.

That leads me onto the second point..... Given that your X rails are low and your Y rails are high, I would beef up the gantry sides as much as possible.

Clearly there are a few introduced moments in your design and those will be your points of potential flex.

Hope that helps.

Enjoy

Andy

[contactirfu]

Andy,

I completely agree, i am expecting there to be some flex. But we will know only when we run the router which is probably a month down the road, I will keep you posted on it.

I believe that unless we see a problem there is no need to solve it!, sort of to save some cash.

Andy, alternatively can u just sketch the moments over one of the pictures using paint and post it, would be interesting to see and would help me to decide where i need to beef up!

RGDS
Irfan

[tenmetalman]

Hey,
Just what is the problem. Is the shaft a couple of thousands undersize, .010,
what ? There's allways a workaround.
bigb1ke

[contactirfu]

Paul, the problem is more, the bearing had a ID of 30 mm and now the shaft turns out to be 28 OD , I donno how that can be compensated!

I have asked him(my vendor) to do the needful without much waste of time and he promised me that he wouldlook at it and decide.

Hope all works out well

Have a good One

CYA

[pksdms]

I think the solution lies in intermidiate bush. Hot pressed over shaft and tight fit in bearing. We always do reveting here red hot for super tight fit.
By the way what size and price of that G bolt ?

[tenmetalman]

Hey,
Let me make a bushing with a 1.180 O.D. & a 1.025 I.D. (inch) of Brass of Alu. by the width required. Assemble with loctite (which I can send you) and let bond. the resulting repair will have incredible strengths in both the radial & linear directions and will hold forever. the small space between the shaft, bushing & bearing is required for the loctite. It will take heating to above 400f to disassemble. the radial runout will be very, very small. I have repaired gears to shafts & the bond allowed the gear assembly to work as though it had never had a problem.
Tenmetalman