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Thanks Mark
it is a real fun thing to me. I enjoy getting older things doing newer work.
Still plan on getting more done to it and then on the the next project.

With your help and the help of David the Swarfer I have come a long way in the CNC area in a short time.

Lots of fun for sure.

Mark

 

I posted some pics of the dual stepper setip in the files area. I 3D printed the mounts and made some long rods to hold them together out os some old 700 Heli FlyBar rods. They worked perfectly. Cut them off and threaded the ends for nuts and will have installed pics next week after the timing belts and 5mm hard couplers come in. Today was spent on designing a new gantry mount for the Dremel tool. the U Bolts just have no real retention ability. the new mounts will be done later tonight so look for pics tomorrow.
Mark

 

Nice one for sure

I just wanted to be able to turn up the speed and since I had several other steppers doing nothing I decided to double the ability. It will not work out to be a full double power but much better than one. it cuts just fine but I think I will be able to cut faster and heaver cuts. The single setup just wanted to miss stepps and get off track so to speak. Also it is an interesting experiament for sure. Hope to fire it up this week.

Mark

 

I just posted 2D image of the Dremel Spindle Mount upgrade. installed pictures to follow. The mounting holes get a 3/8x24 tap and the bolts tighten like in ALU. I am doing the mad to the Dremel to have the cort exit the body at an angle to add clearance to the belt and pulleys.

 

Just Posted the final assembly pics of the spindle and carriage assembly. Added all the wiring with terminal blocks and installed the E Stops at both ends of the Z axis. also i added a screw to retain the bushings that slide on the X axis rods.
Next step is the X and Y motor assemblys.

Mark

 

I posted this in the BllackBox thread

I am trying to sort out the correct wiring for the dual stepper motors on my PhlatPrinter 1. it had been suggested to wire in Paralell. I have found many wiring diagrams that have the B windings reversed and other things. If i wire the motors in direct same wire to same wire the motors are locked.
Can anyone point me to the correct wiring for the BlackBox as many posts on line claim the drivers make a difference in how the winding should be and I do not want to damage anything.

Mark

 

Thanks Peter
I will get that wired and give it a try.
I do not spin the motors as I do know they are generators. I just found it strange that they were completely locked, which is different from only one motor wired up.

Not to keep you bysy but is there any benefits to wiring in Series.

Mark

 

Peter
Reviving the Origonal PhlatPrinter with BlackBox
check out the pics in my build it shows what I have done.
Thanks Again
Mark

 

Sio as I was wiring the Stepper motors I needed to disconett the X threaded rod and decided to add a Tenisioning plate t the end mount to stop whipping. I think it turned out nice. aluminum plate with a Ball Bearing captured with a threaded insert to screw the rod into. The insert has threads and a step to catch aginst the Bng and it is threaded to securre it to the rod. there will be a set screw in the end to lock it to the rod after tension is added.

Mark

 

Well I have started to change the setup on the BlackBox to speedup the motors. The X was first. The old X settings were
X OLD NEW
MM per Min 300 575
Acceleration 30 60

Z OLD NEW
MM per Min 300 675
Acceleration 30 80

working on the Y and will report.
Mark

 

Well the Y came in even better.
MM per MIN Old New
1000 2000

Acceleration 60 100

This thing ROCKS.
I tested and setup the dual motor settings using a Gcode test string of

G00 X-100;
G00 X0;

G00 Y-100;
G00 Y0;

G00 Z-15;
G00 Z0;

Repeted 10 times each

I then increassed the settings till i got lost steps and reduced the numbers to 80% which left me the above.

Also the tention bearing at the end of the X axis really helped. There is NO flopping around, like it used to, of the lead screw at all.

I must say the really cool part is what I am learning from the guys here, staff as well as all of the members contributions.

Mark

 

I just posted new pics of the X and Y dual Stepper setup. It is working great. I have a bit os cleaning up wires and adding the X limit switches and will start a cut on another airplane. I think this setup will allow me to cut maybe 1/4 plywood but cut much quicker and more accuratly. Cant wait to try the plysood. I have a couple of PP1 parts I want to make for replacement.
Full setup pics by the first of the week.

Thanks for watching ALL
Mark

 

Hi All
I did some dry cuts today and this thing is fast now!!!!!

I added the X limitg switch one because I ran out and ordered some more.

My big question is how do I make the home all Just Home X and Z. The Y being a roller is infinite. What i really need it to do is Home Z then home X then pull Y in the + direction some preset amount. It would be nice if it did the pull + during the Home all so if I set the sheet to be cut at the front edge of thePP1 Box it would end up with the front edge at 0.00, that of courst would be just at the edge of the router bit.

So how do I change the Home Y to do this.

Other than that I am almost finished with this part of the PP1 Revival.
Do not confuse this to be I will not do any other upgrades as I have a couple more already in mind.

Thanks for any help
Mark

 

Yes that is correct sorry I corrected the post
Thanks David
Mark

 

Hay Gary
are you using the PP1 or PP3 with the black box now. They should be baisicly the same setup. I actually use the PP1 setup exactly like a standard CNC router. The only thing is I flip the cut board upside down.
Just setup the blackbox and control software like a standard machine the 0.0 is in the bottom left as you look at the sketchup drawing. Then if you sue the PP1setup the0.0on the right. efecrivly like an upside down router or the PP3. Just look at the PP1upside down.

I am not an expert on the control software interface or GRBL but I am getting better every day.
What is the problem you are having? I will do what I can to help and if needed Mark Carew and Peter Van Der Walt who have helped me get to where I am now I am sure they will chim in. Have you worked out the use of Sketchup and Sketchucam, if not then David the swarfer is the God of Sketchueverthing.

list the issue my friend
Mark

 

I have changed the Dremel mounts. I found that if I need to remove the Dremel of work on the carriage it was too much trouble. I would need to literally take everything apart to do anything. Now I can work on any one item in or on the carriage. see the pics. I will load them in just a bit.

Mark

 

I am almost finished with this build and I have just posted the STL files for the Sice by Side motor mount and the Inline motor mounts. Make sure you check the length of the inline mounts as some shafts are longer or shorter than others. You can adjust the mounts to fit our needs. I am doing the final steps on the build and will post a final sets of pics and files in the nex seveeral days.

Thanks for looking
Mark