3D Printer: Ashtar K IDEX (Independent Dual Extrusion)

: verified design


  • 2021/07/30: design printed and mounted
  • 2021/01/19: improved 2nd X motor mount
  • 2021/01/15: removable/replaceable ooze prevention
  • 2021/01/14: Ashtar M (Moving Gantry – Draft) also with IDEX option now
  • 2021/01/13: ooze prevention at rest position added, mechanical conflict resolved
  • 2021/01/12: starting with a first draft, one mechanical conflict to be resolved


I have been pondering on a dual independent X axis upgrade or option for a while, but the other designs of the Ashtar Series I wanted to do first (Ashtar D and Ashtar M) those matured by now (2021/01), so I decided to get back to IDEX upgrade for Ashtar K:

For now I like to keep single 2020 V slot alu extrusion for the X beam where the X carriage rides, and route the 2nd belt above for the 2nd X carriage – and this was a quick solution as earlier version of Ashtar K had the belt routed above the alu profile so I just reused the old pieces again.

“Above routed belt” option with its pieces are weaker and possibly need enforcement improved the strength, so it’s a fast start – just took me 2 hours – but needs definitely some fine-tuning. Alternatively the 2nd belt could be routed at the back of the X carriages, but fastening the 2nd X motor would be challenging.

For now I use the same code base of Ashtar K and introduce IDEX = true flag, and enhance a few existing pieces in parts.scad and optionally add those new pieces when rendering printer-ak.scad.

As I progress with this option or upgrade I update this blog-post.


Issues to Resolve

  • X carriage #1 belt mount conflicts mechanical with belt 2: redesign xcarriage_beltmount_2020 piece, make it shorted in Z or fasten it inside V module: resolved, shifted 2nd belt a bit Y off, and shorten xcarriage_beltmount_2020(idex=true) by 2mm.
  • “Above routed belt” pieces are weaker: enforcement required, resolved: piece strengthened (2021/01/19):
    • xcarriage_short_hmount_motor_2020 which is the base piece which routes the belt within the 2020, with idex=true option provides idler holder on top
    • X motor #2 is mounted on a x-mirrored version of xcarriage_hmount_motor(20,"left",idex=true) but definitely needs reinforcement, added ooze prevention in case of idex set
  • Nozzle drip prevention:
    • using a piece of sheet metal which the nozzle moves over when in rest position left or right, first attempt done (see below)
    • and/or use purge box with brush to clean nozzle after and before use
    • make extending “nose” detachable/replaceable as it’s expected to break or overheat otherwise entire X motors mount needs replacement, resolved
      • xcarriage_nose-idex-left and xcarriage_nose-idex-right with 10mm wide sheet metal insert
    • how dealing with long resting hot nozzle?
      • drop temperature by 5-10°C in rest position, and heat up when in use again
      • heat creep possible weakening extending printed nose – heat insulation required attaching sheet metal


Ashtar M IDEX

And since Ashtar M (Prusa i3 Moving Gantry – Draft) shares much of the Ashtar K design it took me a few mins to add the IDEX upgrade option as well:


145 thoughts on “3D Printer: Ashtar K IDEX (Independent Dual Extrusion)

  1. Pingback: combitic global caplet tadalafil

  2. Pingback: pay to write my essay

  3. Pingback: essay proofreading services

  4. Pingback: custom writing essay service

  5. Pingback: top essay writing services

  6. Pingback: write my essay cheap

  7. Pingback: college essay writer

  8. Pingback: best essay writing service website

  9. Pingback: best writing service

  10. Pingback: best website to buy essays

  11. Pingback: help with essays assignments

  12. Pingback: cheap essay help

  13. Pingback: essay writers online

  14. Pingback: essay writing services toronto

  15. Pingback: personal statement essay help

  16. Pingback: writing essay services

  17. Pingback: viagra pharmacy bangkok

  18. Pingback: dutasteride inhouse pharmacy

  19. Pingback: buy vicodin online pharmacy

  20. Pingback: Tetracycline

  21. Pingback: online pharmacy that sells oxycodone

  22. Pingback: cialis uk supplier

  23. Pingback: where to get real viagra online

  24. Pingback: online medical stores sell tadalafil without medical prescription in india

  25. Pingback: stendra vs cialis

  26. Pingback: sildenafil generic without a prescription

  27. Pingback: buy viagra from canada online

  28. Pingback: cialis manufacturer

  29. Pingback: can you order viagra online in canada

  30. Pingback: wholesale cialis

  31. Pingback: how much is the viagra pill

  32. Pingback: prescription viagra australia

  33. Pingback: cialis side effects with alcohol

  34. Pingback: tadalafil para que sirve

  35. Pingback: rx care pharmacy orlando fl

  36. Pingback: ambien online pharmacy

  37. Pingback: order cialis 20 online

  38. Pingback: real generic viagra

  39. Pingback: buy cheap viagra uk

  40. Pingback: canada cialis with dapoxetine

  41. Pingback: online pharmacy prozac

  42. Pingback: receive cialis overnight

  43. Pingback: viagra super active

  44. Pingback: how to get viagra prescription australia

  45. Pingback: how to buy female viagra

  46. Pingback: viagra australia

  47. Pingback: sildenafil tablet 200mg

  48. Pingback: online viagra cheap

  49. Pingback: tadalafil 20 mg dosage

  50. Pingback: cialis 5mg price cvs

  51. Pingback: canadian tadalafil

  52. Pingback: what happens if a woman takes cialis

  53. Pingback: gabapentin ocular

  54. Pingback: bactrim laboratorio

  55. Pingback: metronidazole cephalexin

  56. Pingback: nolvadex informacion

  57. Pingback: valtrex pdf

  58. Pingback: does lyrica thin your blood

  59. Pingback: lisinopril pastillas

  60. Pingback: hamilelikte glucophage

  61. Pingback: diuril furosemide

  62. Pingback: gaining weight on rybelsus

  63. Pingback: liraglutide vs semaglutide

  64. Pingback: 50 units of semaglutide is how many mg

  65. Pingback: gabapentin spotting

  66. Pingback: metronidazole.biz

  67. Pingback: zoloft side effects

  68. Pingback: cymbalta and nerve pain

  69. Pingback: lexapro escitalopram

  70. Pingback: escitalopram 20 mg efectos secundarios

  71. Pingback: sildenafil cost canada

  72. Pingback: drug interactions with keflex

  73. Pingback: fluoxetine buy

  74. Pingback: azithromycin drug class

  75. Pingback: can i buy cephalexin over the counter

  76. Pingback: duloxetine bipolar

  77. Pingback: spiraldynamics

  78. Pingback: Spiral Dynamics

  79. Pingback: prednisone and cephalexin

  80. Pingback: what bacteria is resistant to ciprofloxacin and levofloxacin

  81. Pingback: will bactrim treat sinus infection

  82. Pingback: bactrim for mrsa skin infection

  83. Pingback: vxi.su

  84. Pingback: will amoxicillin help a uti

  85. Pingback: augmentin yeast infection

  86. Pingback: prozac vs effexor

  87. Pingback: diclofenac sodium topical gel over the counter

  88. Pingback: flexeril pregnancy

  89. Pingback: lithium vs depakote

  90. Pingback: how long does it take citalopram to work

  91. Pingback: ddavp max dose

  92. Pingback: what is diltiazem hydrochloride

  93. Pingback: contrave weight loss

  94. Pingback: ezetimibe analysis

  95. Pingback: what will happen if i stop taking flomax

  96. Pingback: cozaar side effects anxiety

  97. Pingback: allopurinol and gout

  98. Pingback: amitriptyline for insomnia

  99. Pingback: aspirin and ibuprofen

  100. Pingback: what are the side effects of aripiprazole

  101. Pingback: site

  102. Pingback: baclofen drug class

  103. Pingback: what is buspar used for

  104. Pingback: augmentin dosing for children

  105. Pingback: can you stop taking bupropion suddenly

  106. Pingback: celebrex withdrawal symptoms

  107. Pingback: what is celecoxib prescribed for

  108. Pingback: now ashwagandha

  109. Pingback: actos coprofagos

  110. Pingback: will robaxin help me sleep

  111. Pingback: what is protonix used for

  112. Pingback: acarbose cancer

  113. Pingback: remeron sleeping pill

  114. Pingback: buy semaglutide online

  115. Pingback: repaglinide thailand

  116. Pingback: is abilify safe during pregnancy

  117. Pingback: acetaminophen synthroid

  118. Pingback: flexeril vs tizanidine

  119. Pingback: sitagliptin 100 metformin 850

  120. Pingback: ivermectin purchase

  121. Pingback: tamsulosin for the treatment of benign prostatic hypertrophy

  122. Pingback: voltaren gel endo

  123. Pingback: venlafaxine and hydroxyzine

  124. Pingback: spironolactone liver disease

  125. Pingback: sildenafil contraindications

  126. Pingback: cialis online pills

  127. Pingback: brand levitra online

  128. Pingback: tadalafil 75mg

  129. Pingback: what are the side effects of sildenafil

  130. Pingback: xanax european pharmacy

  131. Pingback: buy levitra women

  132. Pingback: polish pharmacy online usa

  133. Pingback: vardenafil hydrochloride trihydrate 20mg

  134. Pingback: stromectol brand

  135. Pingback: tadalafil bph mechanism

  136. Pingback: ivermectin usa price

  137. Pingback: tadalafil and alcohol side effects

  138. Pingback: where to buy ivermectin pills

  139. Pingback: buy ivermectin for humans uk

  140. Pingback: viagra online discount

  141. Pingback: best pharmacy prices for sildenafil

  142. Pingback: liquid vardenafil

  143. Pingback: ivermectin 6mg

  144. Pingback: ivermectin 2

Leave a Reply

Your email address will not be published. Required fields are marked *

Please answer the following anti-bot test:

Adding two and two is?

  1.    6
  2.    2
  3.    1
  4.    4
  5.    5
  6.    3
Just select the correct answers among the proposed.