Commit 33ed887f authored by Jake Read's avatar Jake Read
Browse files

commit now before branching

parent abfdf597
...@@ -48,21 +48,51 @@ This is ready to be applied in the [Little Rascal](http://gitlab.cba.mit.edu/jak ...@@ -48,21 +48,51 @@ This is ready to be applied in the [Little Rascal](http://gitlab.cba.mit.edu/jak
- could abandond servo-belt type, not enough motor torque to overcome friction at this size. re-up on that for N23, with steel belts, for milling and other higher force applications. - could abandond servo-belt type, not enough motor torque to overcome friction at this size. re-up on that for N23, with steel belts, for milling and other higher force applications.
- in abandoning this, belt tensioning becomes easy: make simple, small stops and apply tension at the motor. become smaller. - in abandoning this, belt tensioning becomes easy: make simple, small stops and apply tension at the motor. become smaller.
- I would be interested in a motor-hanging-from-end-of-plate flying belt type at this size, for very fast applications (lasers). - I would be interested in a motor-hanging-from-end-of-plate flying belt type at this size, for very fast applications (lasers).
- motor plate could come inside, to bring pulley closer to motor bearings ... take freedom to push tensioning screw against motor cage, not screws.
- while heat-setting M4 inserts in for the rollers, (1) there isn't *really* enough space to get the soldering iron in (without melting the adjacent pla) and (2) it's difficult to guarantee these go in straight. maybe use a press-in insert? / a hex nut ?
- pulley version needs lots of revisions
- motor mount should have flush-type inset like pinion motor mount
- upside-down pulley mount ... and tack-on belt clamp, need formalization and improvement. to keep the minimum width where it is, you can mount 'down the middle' and use the space on the sides for the plastic thread-forming screw
### BOM for N17 ### BOM for N17
Type | Size | QTY | Where Used | Vendor | PN Type | Size | QTY | Where Used | Vendor | PN
--- | --- | --- | --- | --- | --- --- | --- | --- | --- | --- | ---
Flat Head Thread-Forming | No. 6, 1/2" | 20 | - | McMaster | 95893A255 Flat Head Thread-Forming | No. 6, 1/2" | 12 | - | McMaster | 95893A255
Bearing Shims | 5x10x0.5mm | 22 | - | McMaster | 98089A375 Flat Head Thread-Forming | No. 6, 3/4" | 8 | - | McMaster | 95893A258
Bearing Shims | 5x10x0.5mm | 22 | - | McMaster | 98089A331
Shoulder Bolts | 5x10xM4 | 2 | Pulleys | McMaster | 92981A030 Shoulder Bolts | 5x10xM4 | 2 | Pulleys | McMaster | 92981A030
Shoulder Bolts | 5x6xM4 | 8 | Rollers | McMaster | 92981A146 Shoulder Bolts | 5x6xM4 | 8 | Rollers | McMaster | 92981A146
Heat-Set M4 Tapered Inserts | M4 | 10 | - | McMaster | 94180A351 Heat-Set M4 Tapered Inserts | M4 | 10 | - | McMaster | 94180A351
Heat-Set M3 Tapered Insert | M3 | 1 | - | McMaster | 94180A331 Heat-Set M3 Tapered Insert | M3 | 5 | - | McMaster | 94180A331
Various M3 SHCS | - | 5 | - | - | - M3 SHCS | 10mm Long | 4 | Motor Mounting | McMaster | 91292A113
625ZZ Bearings | 5x16x5mm | 12 | - | VXB | [link](https://www.vxb.com/20-625ZZ-5x16x5-Metal-5mm-Bore-Miniature-p/kit250.htm) or McMaster 6153K113 M3 SHCS | 14mm Long | 5 | Tensioning and Tuning | McMaster | 91292A027
M3 Washers | - | 9 | Screws without Washers are Sad Screws | McMaster | 93475A210
M4 SHCS | 20mm Long | 4 | Belt Mounting | McMaster | 91292A121
M4 Washers | - | 4 | ibid | McMaster | 93475A230
625ZZ Bearings | 5x16x5mm | 12 | - | VXB | [link](https://www.vxb.com/20-625ZZ-Shielded-5mm-Bore-Diameter-Miniature-p/625zz20.htm) or McMaster 6153K113
20T or 16T GT2 Pulley | 10mm or Wider, 5mm Bore | 1 | - | Amazon or SDP/SI | [Amazon Link](https://www.amazon.com/uxcell-Aluminum-Timing-Synchronous-Printer/dp/B072M2CM1W/) 20T or 16T GT2 Pulley | 10mm or Wider, 5mm Bore | 1 | - | Amazon or SDP/SI | [Amazon Link](https://www.amazon.com/uxcell-Aluminum-Timing-Synchronous-Printer/dp/B072M2CM1W/)
10mm (or 9mm) Wide GT2 Belt | Find Steel-Core for Stiffness! | 1 | - | Amazon or SDP/SI | [Amazon Link](https://www.amazon.com/BALITENSEN-Black-Timing-Printer-Machine/dp/B07F2X236H/) 10mm (or 9mm) Wide GT2 Belt | Find Steel-Core for Stiffness! | 1 | - | Amazon or SDP/SI | [Amazon Link](https://www.amazon.com/BALITENSEN-Black-Timing-Printer-Machine/dp/B07F2X236H/)
### Materials for N17
1/4" Acrylic from McMaster, for 12x24" for small lasers pick 8505K755
## HQ Wire Bundling
Trying this with Heat Shrinks
- -> 1" 3M161381-ND
- -> 0.75" 3M161354-ND
- -> 0.5" A100C-4-ND
- -> 0.375" A034C-4-ND
- -> 3/8" ID Sleeve 2837K13
- -> 1/2" 2837K32
- -> 3/4" 2837K33
- -> 1" 2837K34
- Stanley Model 33-116, 6802A36 (3/4" width)
- Stanley Model 33-716, 6817A1 (1 1/4" width)
## Gantry for NEMA23 Motor, 0.375" HDPE ## Gantry for NEMA23 Motor, 0.375" HDPE
...@@ -99,6 +129,11 @@ Less Expensive Bearing Shim | 5/16" Screw Oversize Washer | 38 | Roller Separati ...@@ -99,6 +129,11 @@ Less Expensive Bearing Shim | 5/16" Screw Oversize Washer | 38 | Roller Separati
![RCTN23-025ALU](images/RCTN23-alu-dwg.png) ![RCTN23-025ALU](images/RCTN23-alu-dwg.png)
### Going Notes
- aluminum flexures are no good, plastically deform over time
- look for a solution using spring steel, with known preload ahead of time... i.e. no adjustment, just good steel fixturing
#### [RCTN23-025ALU Fusion CAD File](cad/RCTN23-025ALU_v51.f3d) #### [RCTN23-025ALU Fusion CAD File](cad/RCTN23-025ALU_v51.f3d)
#### BOM N23 025ALU #### BOM N23 025ALU
......
This source diff could not be displayed because it is too large. You can view the blob instead.
This source diff could not be displayed because it is too large. You can view the blob instead.
This source diff could not be displayed because it is too large. You can view the blob instead.
This source diff could not be displayed because it is too large. You can view the blob instead.
This source diff could not be displayed because it is too large. You can view the blob instead.
This source diff could not be displayed because it is too large. You can view the blob instead.
0
SECTION
2
HEADER
9
$ACADVER
1
AC1009
9
$DWGCODEPAGE
3
ansi_1252
9
$INSBASE
10
0.0
20
0.0
30
0.0
9
$EXTMIN
10
-860.0485720379131
20
39.94513269751299
30
-0.0000000000000009
9
$EXTMAX
10
-26.08875511131941
20
129.945132697513
30
0.0000000000000071
9
$LIMMIN
10
0.0
20
0.0
9
$LIMMAX
10
12.0
20
9.0
9
$ORTHOMODE
70
0
9
$REGENMODE
70
1
9
$FILLMODE
70
1
9
$QTEXTMODE
70
0
9
$MIRRTEXT
70
1
9
$DRAGMODE
70
2
9
$LTSCALE
40
1.0
9
$OSMODE
70
37
9
$ATTMODE
70
1
9
$TEXTSIZE
40
0.2
9
$TRACEWID
40
0.05
9
$TEXTSTYLE
7
STANDARD
9
$CLAYER
8
COMPONENT
9
$CELTYPE
6
BYLAYER
9
$CECOLOR
62
256
9
$DIMSCALE
40
1.0
9
$DIMASZ
40
0.18
9
$DIMEXO
40
0.0625
9
$DIMDLI
40
0.38
9
$DIMRND
40
0.0
9
$DIMDLE
40
0.0
9
$DIMEXE
40
0.18
9
$DIMTP
40
0.0
9
$DIMTM
40
0.0
9
$DIMTXT
40
0.18
9
$DIMCEN
40
0.09
9
$DIMTSZ
40
0.0
9
$DIMTOL
70
0
9
$DIMLIM
70
0
9
$DIMTIH
70
1
9
$DIMTOH
70
1
9
$DIMSE1
70
0
9
$DIMSE2
70
0
9
$DIMTAD
70
0
9
$DIMZIN
70
0
9
$DIMBLK
1
9
$DIMASO
70
1
9
$DIMSHO
70
1
9
$DIMPOST
1
9
$DIMAPOST
1
9
$DIMALT
70
0
9
$DIMALTD
70
2
9
$DIMALTF
40
25.4
9
$DIMLFAC
40
1.0
9
$DIMTOFL
70
0
9
$DIMTVP
40
0.0
9
$DIMTIX
70
0
9
$DIMSOXD
70
0
9
$DIMSAH
70
0
9
$DIMBLK1
1
9
$DIMBLK2
1
9
$DIMSTYLE
2
STANDARD
9
$DIMCLRD
70
0
9
$DIMCLRE
70
0
9
$DIMCLRT
70
0
9
$DIMTFAC
40
1.0
9
$DIMGAP
40
0.09
9
$LUNITS
70
2
9
$LUPREC
70
3
9
$SKETCHINC
40
0.1
9
$FILLETRAD
40
0.5
9
$AUNITS
70
0
9
$AUPREC
70
0
9
$MENU
1
.
9
$ELEVATION
40
0.0
9
$PELEVATION
40
0.0
9
$THICKNESS
40
0.0
9
$LIMCHECK
70
0
9
$CHAMFERA
40
0.0
9
$CHAMFERB
40
0.0
9
$SKPOLY
70
0
9
$TDCREATE
40
2458506.662314873
9
$TDUPDATE
40
2458506.662332859
9
$TDINDWG
40
0.0000000116
9
$TDUSRTIMER
40
0.0000000116
9
$USRTIMER
70
1
9
$ANGBASE
50
0.0
9
$ANGDIR
70
0
9
$PDMODE
70
0
9
$PDSIZE
40
0.0
9
$PLINEWID
40
0.0
9
$COORDS
70
1
9
$SPLFRAME
70
0
9
$SPLINETYPE
70
6
9
$SPLINESEGS
70
8
9
$ATTDIA
70
0
9
$ATTREQ
70
1
9
$HANDLING
70
1
9
$HANDSEED
5
106
9
$SURFTAB1
70
6
9
$SURFTAB2
70
6
9
$SURFTYPE
70
6
9
$SURFU
70
6
9
$SURFV
70
6
9
$UCSNAME
2
9
$UCSORG
10
0.0
20
0.0
30
0.0
9
$UCSXDIR
10
1.0
20
0.0
30
0.0
9
$UCSYDIR
10
0.0
20
1.0
30
0.0
9
$PUCSNAME
2
9
$PUCSORG
10
0.0
20
0.0
30
0.0
9
$PUCSXDIR
10
1.0
20
0.0
30
0.0
9
$PUCSYDIR
10
0.0
20
1.0
30
0.0
9
$USERI1
70
0
9
$USERI2
70
0
9
$USERI3
70
0
9
$USERI4
70
0
9
$USERI5
70
0
9
$USERR1
40
0.0
9
$USERR2
40
0.0
9
$USERR3
40
0.0
9
$USERR4
40
0.0
9
$USERR5
40
0.0
9
$WORLDVIEW
70
1
9
$SHADEDGE
70
3
9
$SHADEDIF
70
70
9
$TILEMODE
70
1
9
$MAXACTVP
70
64
9
$PLIMCHECK
70
0
9
$PEXTMIN
10
1.000000000000000E+20
20
1.000000000000000E+20
30
1.000000000000000E+20
9
$PEXTMAX
10
-1.000000000000000E+20
20
-1.000000000000000E+20
30
-1.000000000000000E+20
9