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

by · published Technology , , ,


Status: verified design

  • Motor X1 (left-hand side)
  • Motor X2 (right-hand side)

Updates:

  • 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

Introduction

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:

  • Ashtar K
  • Ashtar K IDEX

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.

  • Old “above routed” X motor mount
  • New stronger “above routed” X motor mount

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.

Draft

  • X motor #1 routed within
  • X motor #2 routed above
  • Ooze prevention in rest position
  • Ooze prevention in rest position
  • Both heads in rest position

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.
  • 2nd belt slight Y offset so X belt mount #1 doesn’t touch belt #2
  • “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
  • Inside and Above 2020 belt routed X motor mount, w/ removable nose with ooze prevention
  • Nozzle at resting position, a sheet metal preventing oozing
  • Right-hand side ooze prevention

Gallery

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:

References

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

  2. Pingback: combitic global caplet tadalafil

  3. Pingback: pay to write my essay

  4. Pingback: essay proofreading services

  5. Pingback: custom writing essay service

  6. Pingback: top essay writing services

  7. Pingback: write my essay cheap

  8. Pingback: college essay writer

  9. Pingback: best essay writing service website

  10. Pingback: best writing service

  11. Pingback: best website to buy essays

  12. Pingback: help with essays assignments

  13. Pingback: cheap essay help

  14. Pingback: essay writers online

  15. Pingback: essay writing services toronto

  16. Pingback: personal statement essay help

  17. Pingback: writing essay services

  18. Pingback: viagra pharmacy bangkok

  19. Pingback: dutasteride inhouse pharmacy

  20. Pingback: buy vicodin online pharmacy

  21. Pingback: Tetracycline

  22. Pingback: online pharmacy that sells oxycodone

  23. Pingback: cialis uk supplier

  24. Pingback: where to get real viagra online

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

  26. Pingback: stendra vs cialis

  27. Pingback: sildenafil generic without a prescription

  28. Pingback: buy viagra from canada online

  29. Pingback: cialis manufacturer

  30. Pingback: can you order viagra online in canada

  31. Pingback: wholesale cialis

  32. Pingback: how much is the viagra pill

  33. Pingback: prescription viagra australia

  34. Pingback: cialis side effects with alcohol

  35. Pingback: tadalafil para que sirve

  36. Pingback: rx care pharmacy orlando fl

  37. Pingback: ambien online pharmacy

  38. Pingback: order cialis 20 online

  39. Pingback: real generic viagra

  40. Pingback: buy cheap viagra uk

  41. Pingback: canada cialis with dapoxetine

  42. Pingback: online pharmacy prozac

  43. Pingback: receive cialis overnight

  44. Pingback: viagra super active

  45. Pingback: how to get viagra prescription australia

  46. Pingback: how to buy female viagra

  47. Pingback: viagra australia

  48. Pingback: sildenafil tablet 200mg

  49. Pingback: online viagra cheap

  50. Pingback: tadalafil 20 mg dosage

  51. Pingback: cialis 5mg price cvs

  52. Pingback: canadian tadalafil

  53. Pingback: what happens if a woman takes cialis

  54. Pingback: gabapentin ocular

  55. Pingback: bactrim laboratorio

  56. Pingback: metronidazole cephalexin

  57. Pingback: nolvadex informacion

  58. Pingback: valtrex pdf

  59. Pingback: does lyrica thin your blood

  60. Pingback: lisinopril pastillas

  61. Pingback: hamilelikte glucophage

  62. Pingback: diuril furosemide

  63. Pingback: gaining weight on rybelsus

  64. Pingback: liraglutide vs semaglutide

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

  66. Pingback: gabapentin spotting

  67. Pingback: metronidazole.biz

  68. Pingback: zoloft side effects

  69. Pingback: cymbalta and nerve pain

  70. Pingback: lexapro escitalopram

  71. Pingback: escitalopram 20 mg efectos secundarios

  72. Pingback: sildenafil cost canada

  73. Pingback: drug interactions with keflex

  74. Pingback: fluoxetine buy

  75. Pingback: azithromycin drug class

  76. Pingback: can i buy cephalexin over the counter

  77. Pingback: duloxetine bipolar

  78. Pingback: spiraldynamics

  79. Pingback: Spiral Dynamics

  80. Pingback: prednisone and cephalexin

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

  82. Pingback: will bactrim treat sinus infection

  83. Pingback: bactrim for mrsa skin infection

  84. Pingback: vxi.su

  85. Pingback: will amoxicillin help a uti

  86. Pingback: augmentin yeast infection

  87. Pingback: prozac vs effexor

  88. Pingback: diclofenac sodium topical gel over the counter

  89. Pingback: flexeril pregnancy

  90. Pingback: lithium vs depakote

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

  92. Pingback: ddavp max dose

  93. Pingback: what is diltiazem hydrochloride

  94. Pingback: contrave weight loss

  95. Pingback: ezetimibe analysis

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

  97. Pingback: cozaar side effects anxiety

  98. Pingback: allopurinol and gout

  99. Pingback: amitriptyline for insomnia

  100. Pingback: aspirin and ibuprofen

  101. Pingback: what are the side effects of aripiprazole

  102. Pingback: site

  103. Pingback: baclofen drug class

  104. Pingback: what is buspar used for

  105. Pingback: augmentin dosing for children

  106. Pingback: can you stop taking bupropion suddenly

  107. Pingback: celebrex withdrawal symptoms

  108. Pingback: what is celecoxib prescribed for

  109. Pingback: now ashwagandha

  110. Pingback: actos coprofagos

  111. Pingback: will robaxin help me sleep

  112. Pingback: what is protonix used for

  113. Pingback: acarbose cancer

  114. Pingback: remeron sleeping pill

  115. Pingback: buy semaglutide online

  116. Pingback: repaglinide thailand

  117. Pingback: is abilify safe during pregnancy

  118. Pingback: acetaminophen synthroid

  119. Pingback: flexeril vs tizanidine

  120. Pingback: sitagliptin 100 metformin 850

  121. Pingback: ivermectin purchase

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

  123. Pingback: voltaren gel endo

  124. Pingback: venlafaxine and hydroxyzine

  125. Pingback: spironolactone liver disease

  126. Pingback: sildenafil contraindications

  127. Pingback: cialis online pills

  128. Pingback: brand levitra online

  129. Pingback: tadalafil 75mg

  130. Pingback: what are the side effects of sildenafil

  131. Pingback: xanax european pharmacy

  132. Pingback: buy levitra women

  133. Pingback: polish pharmacy online usa

  134. Pingback: vardenafil hydrochloride trihydrate 20mg

  135. Pingback: stromectol brand

  136. Pingback: tadalafil bph mechanism

  137. Pingback: ivermectin usa price

  138. Pingback: tadalafil and alcohol side effects

  139. Pingback: where to buy ivermectin pills

  140. Pingback: buy ivermectin for humans uk

  141. Pingback: viagra online discount

  142. Pingback: best pharmacy prices for sildenafil

  143. Pingback: liquid vardenafil

  144. Pingback: ivermectin 6mg

  145. Pingback: ivermectin 2

  146. Pingback: gabapentin 100mg side effects

  147. Pingback: augmentin amoxicillin

  148. Pingback: modafinil drug interactions

  149. Pingback: lisinopril vs losartan

  150. Pingback: keflex for cellulitis

  151. Pingback: metronidazole how long does it take to work

  152. Pingback: what is trazodone used for in dogs

  153. Pingback: is nolvadex an aromatase inhibitor

  154. Pingback: cephalexin for dogs dosage

  155. Pingback: can you take valacyclovir daily

  156. Pingback: chlamydia amoxicillin

  157. Pingback: side effects from metformin

  158. Pingback: doxycycline killed my dog

  159. Pingback: gabapentin vs pregabalin side effects

  160. Pingback: ciprofloxacin mechanism of action

  161. Pingback: what question should the nurse ask when assessing for therapeutic effects of vardenafil?

  162. Pingback: levitra 20mg buy online

  163. Pingback: roman tadalafil

  164. Pingback: lipitor online pharmacy price

  165. Pingback: puedo comprar viagra en walgreens sin receta

  166. Pingback: what does sildenafil do

  167. Pingback: para que sirve el sildenafil

  168. Pingback: sildenafil tablet

  169. Pingback: can sildenafil 20 mg be used for erectile dysfunction

  170. Pingback: sildenafil side effects blood pressure

  171. Pingback: levitra medication

  172. Pingback: canada cialis

  173. Pingback: diltiazem online pharmacy

  174. Pingback: levitra 20 mg online

  175. Pingback: what happens if you take expired tadalafil

  176. Pingback: how long does tadalafil 10mg last

  177. Pingback: medical arts pharmacy phentermine

  178. Pingback: how long before sildenafil works

  179. Pingback: how to order levitra online

  180. Pingback: levitra order pharmacy

  181. Pingback: amlodipine besylate online pharmacy

  182. Pingback: lipitor generic target pharmacy

  183. Pingback: cialis overdose

  184. Pingback: difference between tadalafil and sildenafil

  185. Pingback: lidocaine cream pharmacy

  186. Pingback: what is sildenafil 20 mg

  187. Pingback: Depakote

  188. Pingback: chrisale tadalafil 20 mg para que sirve

  189. Pingback: tadalafil and testosterone

  190. Pingback: chrisale tadalafil

  191. Pingback: what is vardenafil hydrochloride

  192. Pingback: tadalafil pills

  193. Pingback: tadalafil prescription

  194. Pingback: concerta online pharmacy

  195. Pingback: specialty rx pharmacy

  196. Pingback: tretinoin cream online pharmacy

  197. Pingback: online pharmacy fluconazole

  198. Pingback: neurontin side effects in elderly

  199. Pingback: gabapentin ng

  200. Pingback: tegretol informacion

  201. Pingback: how long does it take children's motrin to work

  202. Pingback: ibuprofen amphetamine

  203. Pingback: carbamazepine hla-b 1502 allele

  204. Pingback: anti inflammatoire celebrex 200mg

  205. Pingback: tramadol etodolac interaction

  206. Pingback: sulfasalazine liver fibrosis

  207. Pingback: celecoxib platelet inhibition

  208. Pingback: cilostazol mexico

  209. Pingback: amitriptyline for dogs

  210. Pingback: how to get cheap pyridostigmine for sale

  211. Pingback: side effects from mestinon

  212. Pingback: indomethacin betamethasone methocarbamol

  213. Pingback: imitrex and ed

  214. Pingback: can you take elavil with alcohol

  215. Pingback: diclofenac potassium

  216. Pingback: about mebeverine hydrochloride

  217. Pingback: nitrate tolerance imdur

  218. Pingback: rizatriptan dosage

  219. Pingback: mobic side effects depression

  220. Pingback: enbrel and azathioprine

  221. Pingback: tác dụng của thuốc piroxicam

  222. Pingback: sumatriptan miscarriage

  223. Pingback: maxalt activate the card

  224. Pingback: imuran and sun

  225. Pingback: notice lioresal 10 mg

  226. Pingback: does baclofen cause tooth decay

  227. Pingback: para que serve medicamento meloxicam

  228. Pingback: how to get generic toradol without dr prescription

  229. Pingback: artane industrial school history

  230. Pingback: zanaflex side effects mayo

  231. Pingback: cost of generic ketorolac online

  232. Pingback: tizanidine and ciprofloxacin drug interaction

  233. Pingback: periactin and anorexia nervosa

  234. Pingback: cyproheptadine depression side effects

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