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I went in a different direction

Just checking to see what might be available...

Thanks,
Roy

Just to repeat...machine was sold...

yes it was! worked perfectly...and sort of hate I put it up for sale but moving to a smaller machine now. Just didn't need the 4x8 for what we do and shop floor space is at a premium! <LOL>!

Roy

Bot has been sold...

;);)
New home needed! Make me an offer!

Offers considered too !!!

PRT 4 X 8 - $8750

Lightly used, perfect condition, used to cut Starboard (plastic). 4G Upgrade & HSD Spindle. Shopbot table and vacuum surface with all valves.

We are not using the capacity...

Found one. Tnx

I am looking for a digitizing probe to play with on a small project.

text me: 704-433-1373 (or call)...

Thanks,
Roy

Photos available?

Still looking for a desktop...

Bump to top

Sounds great! Now lets hope I can find one <G>

Much appreciate the advice! And...I will definitely now be aware of the fine points. I have a PRT that I have had for MANY years that we use for most projects but I am looking at trying to cut some...

Looking for low use desktop/ spindle combo.

704-762-9066

Been a while Lonnie! Thanks for the tip on speed/cutter...I'll see if that gives me what I am looking for.

Roy

Brady...
That was my first thought...something has changed. I used some old blue foam many years ago and I recalled it machining a lot better than what I just bought. Didn't try the slow speed...

Interesting!

Slow & conventional. A combo I had not tried.

Thanks for pointing me to that excellent piece of work Steve!

Both em & ballnose. Running between 15-18k rpm. I guess I want it to cut like HDU which I know it won't.

I bought a 2" sheet of blue insulation foam from a big box store for some 3D prototyping. I have tried 100 combinations of bits and RPM to get a clean cut (like I see on a few other posts here) but...

Didn't see a link or vendor?

Never been able to get acceptable results on bot... but the laser will make very short work of these with beautiful results (just turn off your exhaust system or you will end up with your work being...

Just to update...I think the issue was (and is) a combination of material and hold down method. I ran several tests on other scrap material and think I have determined that the original issue was...

Brady...

I just want to say how much I appreciate your effort to help...above and beyond is all I can say!

Material is clamped to the table...and it certainly could be plywood warping but in...