CNC machine
Sienci LongMill MK2: 65 mm mount, router and spindle fit
Sienci's LongMill MK2 mount sizes (52, 65, 71, 80 mm), the Makita router it tested, the AutoSpin and the dust-shoe limit on 71 and 80 mm mounts.
Also listed as LongMill, LongMill MK2
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Short answer
Sienci says the standard LongMill MK2 router mount has a 65 mm bore and that the Makita RT0700/RT0701 is the router it has thoroughly tested on the LongMill. Sienci sells LongMill mounts in 52, 65, 71 and 80 mm, but its 71 and 80 mm mounts will not work with the MK2 dust shoe, and it offers no technical support for third-party spindles.
What fitsAll 2 items that fit
- Router (kit)Makita RT0701CX3 1‑1/4 HP compact router kit (RT0701C with fixed, plunge, tilt and offset bases)Check price on Amazon
Key facts
- Maker and model
- Sienci Labs LongMill MK2[1]
- Z axis or slider
- Not confirmed
- Router or spindle it ships with
- Makita RT0700/RT0701 is the router Sienci says it has thoroughly tested on the LongMill[1][2]Sienci also sells its AutoSpin, which uses ER11 collets for tooling up to 1/4 in and has a 64.8 mm body Sienci says fits 65 mm mounts.
- Mount it ships with
- 65 mm bore (standard LongMill MK2 router mount)[1]
- Other mounts the maker lists
- Sienci LongMill router mounts in 52, 65, 71 and 80 mm; Sienci lists the 71 mm mount for the DeWalt DWP611 and Bosch Colt[3]The mount includes two M5 fasteners and is listed at 25.4 mm thick.
- Mounts and kits the maker excludes
- Sienci says its 71 mm and 80 mm LongMill router mounts will not work with the MK2 dust shoe.[3]
- Spindle kits that name it
- Sienci AutoSpin (fits 65 mm router mounts, per Sienci)[2]
- Supply the maker's kits require
- Sienci lists its AutoSpin T1 as available only for 110/120 V with a North American plug.[1]Quoted from the maker; we give no wiring or outlet advice.
- Collets supplied
- Not confirmedThe AutoSpin uses ER11 collets for tooling up to 1/4 in; Makita supplies the RT0701C with its own 1/4 in collet.
- Table and workholding thread
- Not confirmed
- Dust boots that name it
- Sienci MK2 dust shoe, which Sienci says does not work with its 71 mm and 80 mm mounts[3]
- Maker support for third-party parts
- Sienci does not offer technical support for installing third-party spindles on the LongMill.[1]Sienci also says added spindle weight can wear Delrin nuts and V-wheels faster.
- Revisions and conflicts
- Sienci calls its DeWalt DWP611 mount 71 mm, while FoxAlien and Carbide 3D call their DWP611 parts 69 mm. Neither maker explains the difference.[3][4][5]Both labels are shown; we do not resolve them. Buy the holder whose maker names your router.
- Not confirmed
- Not confirmed
Watch out for
- Sienci's 71 mm and 80 mm LongMill mounts will not work with the MK2 dust shoe.
- Sienci offers no technical support for third-party spindles on the LongMill, and warns extra spindle weight can wear Delrin nuts and V-wheels faster.
- Sienci calls its DWP611 mount 71 mm; other makers call DWP611 parts 69 mm. Buy the mount Sienci lists for your router.
What fits
Product details below are the seller's own description unless a source is shown. Pick the variant named for each item.
Router
Makita RT0701C 1‑1/4 HP compact router, fixed base (65 mm class, 1/4 in collet)Choose the RT0701C with the fixed base and 1/4 in collet.
Sienci says the standard MK2 mount has a 65 mm bore and the Makita RT0700/RT0701 is the router it has thoroughly tested on the LongMill.
Router (kit)
Makita RT0701CX3 1‑1/4 HP compact router kit (RT0701C with fixed, plunge, tilt and offset bases)Choose the RT0701CX3 kit for the same RT0701C router with extra bases; only the motor unit goes in the mount.
Makita sells the RT0701CX3 as the RT0701C with plunge, tilt and offset bases.
This is a reference for owners, not a machine recommendation. See 65 mm mounts and 71 mm mounts.
Questions
What size router mount does the LongMill MK2 use?
Sienci says the standard LongMill MK2 router mount has a 65 mm bore. Sienci also sells LongMill mounts in 52, 71 and 80 mm.[1][3]
Can I use a DeWalt DWP611 on a LongMill?
Sienci lists its 71 mm LongMill mount for the DeWalt DWP611 and Bosch Colt. That mount will not work with the MK2 dust shoe.[3]
Does Sienci support third-party spindles on the LongMill?
No. Sienci states it does not offer technical support for installing third-party spindles on the LongMill.[1]