Fore replacing my spindle,
I’m looking for a 43mm spindle mount with a tram adjustment.
Does such a thing exist?
Or do I have to get a conventional one and drill my own holes for grub screws? (2 pushing against the mounting plate and 2 pushing down/up against one of the 2 mounting bolts)
https://de.aliexpress.com/item/43mm-Euro-Aluminium-Neck-Spindle-Mount-Bracket-Clamp-Spindle-Motor-Holder/32446336487.html?spm=2114.010208.3.28.OoasnZ&ws_ab_test=searchweb0_0,searchweb201602_5_10065_10068_10000074_10000032_119_10000025_10000029_430_10000028_10060_10000067_10062_10056_10055_10000062_10054_301_10059_10099_10000022_10000013_10103_10102_10000016_10101_10096_10000018_10000019_10000056_10000059_10052_10053_10107_10050_10106_10051_10000053_10000007_10000050_10084_10083_10000047_10080_10082_10081_10110_10111_10112_10113_10114_10115_10037_10000041_10000044_10078_10079_10077_10000038_429_10073_10000035_10121,searchweb201603_10,afswitch_3,single_sort_3_default&btsid=5d2fb71b-44a3-414e-8aa1-a16137c5d591
User chrisw off eBay makes custom/standard spindle mounts and is a openbuilds member making them in the USA on professional CNC equipment
What eBay? eBay.de, http://eBay.co.uk, eBay.us ?
I guess it’s easier to CNC my own custom mount then have one made on the far side of the planet.
Or easier, to modify one of these by drilling and tapping a few grub screw holes.
I just wish to avoid that by looking for ready made ones to simply buy.
43mm euro-neck is a standard after all and tramming is a common thing on CNC machines of all sizes.
Do you own a 3d printer? I’m currently running a 80% infill spindle holder and is working fine for me
@Alex_Krause Yes, an Ultimaker II extended. Very reliable. But I would not mount a 600-2200W vibrating spindle in nGen or PLA when I can have solid Aluminium or at least POM.
I fear that at the tip of the tool I will never get less then 1/100mm runout at rumbling low RPM and a perfect tram with larger diameter tools with such a spindle holder.
@Marcus_Wolschon Have you found any sort of mounts with tram adjustments that you are looking for (even if the incorrect diameter)? Can you post a link? I would like to learn about what you are looking for. Thanks.
Not yet. Larger machines have the adjustment on the tower or gantry.
After making sure my machine is square
(Z height does not change when traveling around.
X and Y are perfectly perpendicular.
A is perfectly parallel to X in both directions.),
I want to make sure my spindle is also perfectly vertical in both directions.
This is important to me for a perfect surface finish because one side of the cutter does not dig deeper into the material then the other side, leaving marks.
If I can’t find anything for this, my approach would be grub screws then push against the mounting bolt from above on one side (to adjust the angle around X) and grub screws to push against the plate this spindle mount is mounted to (to adjust the angle around Y=gantry).
Maybe this is overkill for a 600x400 chinese hobby machine but drilling and tapping 4 holes isn’t terribly much work either.
43 mm mount mmmmm May need to do a custom mount. What sort of router is it for(Brand).? Could just come down to levelling your spoil board.
a) It’s not a 2.5d router, it’s a 4 axis mill.
b) there is no spoil board, there is a T-slot plate
c) levelling give you squareness, not tram.
Just trying to help. No need to get yer knickers in a knot!
Perhaps if you were to be a little bit more specific with the info you have just provided
you may get a bit more help.
Jeeez.
??? why do you think I’m upset after simply correcting 3 misconceptions?
What specifics do you want?
I though tramming a spindle was a perfectly well defined and understood procedure in setting up a CNC machine. It’s the common task you do right after squaring the machine.
Not trying to get into a war mate. You asked a question i just tried to offer some help.
JEEEEZ!
Why are you getting upset?
Why are you not answering the question?
Marcus, I hope you share the design you come up with. I would be interested to see it.
This is my tramming fix. I am not happy with it. It works great on +x,-x direction, but sucks at +y,-y because 10mm aluminium plate deflects when I try to adjust it.
missing/deleted image from Google+
I did not think that about deflection. Very goof point. Can you reach the bolts with the spindle attached?
You inserted it between mounting brackets and back plate?
I am using 80mm spindle and reach all the screws. I am trying to move the yellow part to tram the router but, backplate (gray part) deflects.