I recently have bought a Neptune Apex and have made some DIY compatible solenoid valves and posted the .stl files to Cults3d if anyone is interested in making one for yourself. They are a direct replacement for the SV-1. As far as I can tell the solenoid body is the same used on the SV-1 so the 1/4" mounting bracket by itself may be compatible with it but I do not have a SV-1 and have not tested this. I have also included a mounting bracket compatible with the 3/8" version for a CO2 scrubber air line solenoid. If you have any questions, issues, or suggestions please feel free to reach out.
https://cults3d.com/en/3d-model/home/solenoid-cover-for-digiten-solenoids-apex
Printed in ABS using Prusa CoreOne with MMU3. Used HIPS as support material for overhang clips on Cover and Cord Cover, not necessary and worked well in test prints with ABS as support material. If printing with ABS as support material recommend printing Cord Cover without supports as the small gap will cause the slicer to not build supports all the way up to the overhang, slicer will treat this as an overhang and perform better.
Parts list:
DIGITEN 24V 1/4" Solenoid valve
https://www.amazon.com/dp/B00X6RAHMU?ref=ppx_yo2ov_dt_b_fed_asin_title
2C 20AWG wire
https://www.amazon.com/dp/B0C27BMLSR?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
1/4" 3:1 Heat Shrink
Molex Micro-fit 3.0 2 Circuit Male connector with terminals
https://www.amazon.com/Molex-Micro-Fit-Circuits-receptacle-Terminal/dp/B078PZY6SM/ref=sr_1_3?crid=1XXE2HRPWV8JR&dib=eyJ2IjoiMSJ9._FMbRox34SKcUbq5-CELUPRtifwpiv9etyg5yhy3YBoE_DYL0ZENKS87PjHfVEgWyFNlnds76f4LiYmR7UJ6Gev2oc4Xj-vGrlrP0NW7Nu2H1cgih0-gLx9nVjtjooG9z64Q_bTWioqdN8qI9NE2m2jRQ2Q5qzrTeFVegdvd_ACjGRJgw1CzIvCfETFd97JlxIuM-JSdLtxohUNpxmgSaGiGv3vKvw8hynBJWYPy81RGwT1xOMUIQW-H4EMOe7KhUr3EWctgQWtIbEfEo_KG7LY5xv65f8YMd9wj1BPDxoY.aDqzMxLnKR2iKPU7ImC9xLUzEGmGleuYwChTAuF6XcU&dib_tag=se&keywords=micro-fit+molex+3.0+2+male&qid=1781879418&s=industrial&sprefix=micro-fit+molex+3.0+2+male%2Cindustrial%2C121&sr=1-3
#8 Exterior wood screws for mounting or other #8 screws (4.2mm major diameter)
#6 (5/8 length) wood screws for securing mount to solenoid
6.3mm female red spade terminals crimp connector
https://www.amazon.com/dp/B0CKDYZNW9?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
Total estimated parts cost per unit:
Filament (ABS+HIPS) $1.57
24V 1/4" Solenoid $7.19
2C 20AWG Wire (5ft) $1.45
1/4" Heat Shrink (1") $0.05
Microfit Molex 3.0 Male $1.09
#8 Exterior Wood Screw x2 $0.11
#6 Wood Screw x4 $0.16
6.3mm Spade connector x2 $0.06
Total $11.68
Total as direct
SV-1 Replacement w/o
mount $11.20
https://cults3d.com/en/3d-model/home/solenoid-cover-for-digiten-solenoids-apex
Printed in ABS using Prusa CoreOne with MMU3. Used HIPS as support material for overhang clips on Cover and Cord Cover, not necessary and worked well in test prints with ABS as support material. If printing with ABS as support material recommend printing Cord Cover without supports as the small gap will cause the slicer to not build supports all the way up to the overhang, slicer will treat this as an overhang and perform better.
Parts list:
DIGITEN 24V 1/4" Solenoid valve
https://www.amazon.com/dp/B00X6RAHMU?ref=ppx_yo2ov_dt_b_fed_asin_title
2C 20AWG wire
https://www.amazon.com/dp/B0C27BMLSR?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
1/4" 3:1 Heat Shrink
Molex Micro-fit 3.0 2 Circuit Male connector with terminals
https://www.amazon.com/Molex-Micro-Fit-Circuits-receptacle-Terminal/dp/B078PZY6SM/ref=sr_1_3?crid=1XXE2HRPWV8JR&dib=eyJ2IjoiMSJ9._FMbRox34SKcUbq5-CELUPRtifwpiv9etyg5yhy3YBoE_DYL0ZENKS87PjHfVEgWyFNlnds76f4LiYmR7UJ6Gev2oc4Xj-vGrlrP0NW7Nu2H1cgih0-gLx9nVjtjooG9z64Q_bTWioqdN8qI9NE2m2jRQ2Q5qzrTeFVegdvd_ACjGRJgw1CzIvCfETFd97JlxIuM-JSdLtxohUNpxmgSaGiGv3vKvw8hynBJWYPy81RGwT1xOMUIQW-H4EMOe7KhUr3EWctgQWtIbEfEo_KG7LY5xv65f8YMd9wj1BPDxoY.aDqzMxLnKR2iKPU7ImC9xLUzEGmGleuYwChTAuF6XcU&dib_tag=se&keywords=micro-fit+molex+3.0+2+male&qid=1781879418&s=industrial&sprefix=micro-fit+molex+3.0+2+male%2Cindustrial%2C121&sr=1-3
#8 Exterior wood screws for mounting or other #8 screws (4.2mm major diameter)
#6 (5/8 length) wood screws for securing mount to solenoid
6.3mm female red spade terminals crimp connector
https://www.amazon.com/dp/B0CKDYZNW9?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
Total estimated parts cost per unit:
Filament (ABS+HIPS) $1.57
24V 1/4" Solenoid $7.19
2C 20AWG Wire (5ft) $1.45
1/4" Heat Shrink (1") $0.05
Microfit Molex 3.0 Male $1.09
#8 Exterior Wood Screw x2 $0.11
#6 Wood Screw x4 $0.16
6.3mm Spade connector x2 $0.06
Total $11.68
Total as direct
SV-1 Replacement w/o
mount $11.20
