looks brilliant!
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looks brilliant!
hello everyone!
the gantry ends (and all other parts) are machined from solid 7075 T651 but those are covers as well.
i'm including some images without the covers for clarification
Attachment 22399Attachment 22401Attachment 22400
Updates
this week iv'e FINALLY got my UDOO x86 single board PC which will be paired with Dynamotion's Kflop motion controller to create what i hope
is the best hobby solution today for machine control. (more updates on this soon)
Attachment 22404
also, the work has begun on the machined parts(!!)
Attachment 22403Attachment 22402
Hi giladv,
Very interested in your project as I am thinking of building something of similar compact size in the near future and your design looks great.
I also use Kflop with my CNC mill and I love it.
One question, the 1.8 spindle servo, can you tell us what servo you are planning to use? Is is a dedicated spindle servo for higher revs or just the usual 3000 revs?
Edward
thanks!Quote:
Originally Posted by Edward
regarding the spindle: the ac servo should be 3500 rpm max (with the driver itself i was able to go only to 3000rpm).
but there is a 1:1.87 gear ratio between he spindle and the motor. so i'm planning on around 6000-6500 rpm at the spindle tip.
best,
Gilad
hello everyone, just a small update:
Attachment 22462Attachment 22463
Can't wait to see some more shots as you build it!
Giladv,Quote:
Originally Posted by giladv
I am curious about your progress.
Any news?
Grtz Bert
Verstuurd vanaf mijn SM-A320FL met Tapatalk
hey driftspin,
unfortunately i'm kinda stuck as my friends CNC shop is busy with some real work haha (crying inside).
i have all of the "off the shelf parts" waiting in my home for the machined parts for almost a year now i think.
i promise to update as soon as things start moving again:)
Gilad
A question pops to my mind. Looking at the type of structure. WHY BT30 head?
I understand if you will tapp all day. But if not:
-you limit your speed more than half
-3kw spindle will cut through directly 1mm of mild steel with no problem and HSM with 6mm flute in that same mild steel any depth to 6mm!!! I know that from my machine
-forget about wood
-forget about engraving
- even aluminum needs 12k RPM at least with normal 6mm flute and 24k with 1/8 and similar
IMHO you limit severely your machine with this BT30 spindle. Its like driving a big black 4x4 near the seaside on a perfect road, while you must be driving a white cabrio sports car...
To me tapping could be solved differently and money spend towards better spindle, bigger spindle. At the end of the day it would be cheaper to make a dedicated servo+Z2+collet just for tapping.
Because from the looks that's not a machine for steel for me and i can not be easily convinced that it will be with that aluminum profiles.
Just some thoughts
PS. If you insist on this shape, size capability, then you need Epoxy Granite one, not a router, but mill. Ah, yeah. And extra spindle for small bits and engraving...
Don't talk stupid. I'd rather have BT 30 spindle with option of ATC than 3Kw ER spindle anyday of the week. However what it really needs are high rpm rated bearings which can be replaced if needed.Quote:
Originally Posted by Boyan Silyavski
Why do you doubt Profile.? Your machine is made from mild steel tube which very similiar in density to Aluminium profile but it's it's hollow so much more resonant which is bad news if trying to cut hard materials like steel.Quote:
Originally Posted by Boyan Silyavski
Can tell you know I'd much rather have Gantry made from HD profile than from thin/medium wall Mild steel box section. Unless that box section was minimum of 10mm thick wall which then opens up all lot of other issues regards Mass etc.
Just because it's made from steel doesn't always make it better or stronger.